File: | tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp |
Location: | line 3405, column 5 |
Description: | Called C++ object pointer is null |
1 | //===-- SymbolFileDWARF.cpp ------------------------------------*- C++ -*-===// | |||||
2 | // | |||||
3 | // The LLVM Compiler Infrastructure | |||||
4 | // | |||||
5 | // This file is distributed under the University of Illinois Open Source | |||||
6 | // License. See LICENSE.TXT for details. | |||||
7 | // | |||||
8 | //===----------------------------------------------------------------------===// | |||||
9 | ||||||
10 | #include "SymbolFileDWARF.h" | |||||
11 | ||||||
12 | // Other libraries and framework includes | |||||
13 | #include "clang/AST/ASTConsumer.h" | |||||
14 | #include "clang/AST/ASTContext.h" | |||||
15 | #include "clang/AST/Decl.h" | |||||
16 | #include "clang/AST/DeclGroup.h" | |||||
17 | #include "clang/AST/DeclObjC.h" | |||||
18 | #include "clang/AST/DeclTemplate.h" | |||||
19 | #include "clang/Basic/Builtins.h" | |||||
20 | #include "clang/Basic/IdentifierTable.h" | |||||
21 | #include "clang/Basic/LangOptions.h" | |||||
22 | #include "clang/Basic/SourceManager.h" | |||||
23 | #include "clang/Basic/TargetInfo.h" | |||||
24 | #include "clang/Basic/Specifiers.h" | |||||
25 | #include "clang/Sema/DeclSpec.h" | |||||
26 | ||||||
27 | #include "llvm/Support/Casting.h" | |||||
28 | ||||||
29 | #include "lldb/Core/Module.h" | |||||
30 | #include "lldb/Core/PluginManager.h" | |||||
31 | #include "lldb/Core/RegularExpression.h" | |||||
32 | #include "lldb/Core/Scalar.h" | |||||
33 | #include "lldb/Core/Section.h" | |||||
34 | #include "lldb/Core/StreamFile.h" | |||||
35 | #include "lldb/Core/StreamString.h" | |||||
36 | #include "lldb/Core/Timer.h" | |||||
37 | #include "lldb/Core/Value.h" | |||||
38 | ||||||
39 | #include "lldb/Host/Host.h" | |||||
40 | ||||||
41 | #include "lldb/Symbol/Block.h" | |||||
42 | #include "lldb/Symbol/ClangExternalASTSourceCallbacks.h" | |||||
43 | #include "lldb/Symbol/CompileUnit.h" | |||||
44 | #include "lldb/Symbol/LineTable.h" | |||||
45 | #include "lldb/Symbol/ObjectFile.h" | |||||
46 | #include "lldb/Symbol/SymbolVendor.h" | |||||
47 | #include "lldb/Symbol/VariableList.h" | |||||
48 | ||||||
49 | #include "lldb/Target/ObjCLanguageRuntime.h" | |||||
50 | #include "lldb/Target/CPPLanguageRuntime.h" | |||||
51 | ||||||
52 | #include "DWARFCompileUnit.h" | |||||
53 | #include "DWARFDebugAbbrev.h" | |||||
54 | #include "DWARFDebugAranges.h" | |||||
55 | #include "DWARFDebugInfo.h" | |||||
56 | #include "DWARFDebugInfoEntry.h" | |||||
57 | #include "DWARFDebugLine.h" | |||||
58 | #include "DWARFDebugPubnames.h" | |||||
59 | #include "DWARFDebugRanges.h" | |||||
60 | #include "DWARFDeclContext.h" | |||||
61 | #include "DWARFDIECollection.h" | |||||
62 | #include "DWARFFormValue.h" | |||||
63 | #include "DWARFLocationList.h" | |||||
64 | #include "LogChannelDWARF.h" | |||||
65 | #include "SymbolFileDWARFDebugMap.h" | |||||
66 | ||||||
67 | #include <map> | |||||
68 | ||||||
69 | #include <ctype.h> | |||||
70 | #include <string.h> | |||||
71 | ||||||
72 | //#define ENABLE_DEBUG_PRINTF // COMMENT OUT THIS LINE PRIOR TO CHECKIN | |||||
73 | ||||||
74 | #ifdef ENABLE_DEBUG_PRINTF | |||||
75 | #include <stdio.h> | |||||
76 | #define DEBUG_PRINTF(fmt, ...) printf(fmt, __VA_ARGS__) | |||||
77 | #else | |||||
78 | #define DEBUG_PRINTF(fmt, ...) | |||||
79 | #endif | |||||
80 | ||||||
81 | #define DIE_IS_BEING_PARSED((lldb_private::Type*)1) ((lldb_private::Type*)1) | |||||
82 | ||||||
83 | using namespace lldb; | |||||
84 | using namespace lldb_private; | |||||
85 | ||||||
86 | //static inline bool | |||||
87 | //child_requires_parent_class_union_or_struct_to_be_completed (dw_tag_t tag) | |||||
88 | //{ | |||||
89 | // switch (tag) | |||||
90 | // { | |||||
91 | // default: | |||||
92 | // break; | |||||
93 | // case DW_TAG_subprogram: | |||||
94 | // case DW_TAG_inlined_subroutine: | |||||
95 | // case DW_TAG_class_type: | |||||
96 | // case DW_TAG_structure_type: | |||||
97 | // case DW_TAG_union_type: | |||||
98 | // return true; | |||||
99 | // } | |||||
100 | // return false; | |||||
101 | //} | |||||
102 | // | |||||
103 | static AccessType | |||||
104 | DW_ACCESS_to_AccessType (uint32_t dwarf_accessibility) | |||||
105 | { | |||||
106 | switch (dwarf_accessibility) | |||||
107 | { | |||||
108 | case DW_ACCESS_public: return eAccessPublic; | |||||
109 | case DW_ACCESS_private: return eAccessPrivate; | |||||
110 | case DW_ACCESS_protected: return eAccessProtected; | |||||
111 | default: break; | |||||
112 | } | |||||
113 | return eAccessNone; | |||||
114 | } | |||||
115 | ||||||
116 | static const char* | |||||
117 | removeHostnameFromPathname(const char* path_from_dwarf) | |||||
118 | { | |||||
119 | if (!path_from_dwarf || !path_from_dwarf[0]) | |||||
120 | { | |||||
121 | return path_from_dwarf; | |||||
122 | } | |||||
123 | ||||||
124 | const char *colon_pos = strchr(path_from_dwarf, ':'); | |||||
125 | if (!colon_pos) | |||||
126 | { | |||||
127 | return path_from_dwarf; | |||||
128 | } | |||||
129 | ||||||
130 | // check whether we have a windows path, and so the first character | |||||
131 | // is a drive-letter not a hostname. | |||||
132 | if ( | |||||
133 | colon_pos == path_from_dwarf + 1 && | |||||
134 | isalpha(*path_from_dwarf) && | |||||
135 | strlen(path_from_dwarf) > 2 && | |||||
136 | '\\' == path_from_dwarf[2]) | |||||
137 | { | |||||
138 | return path_from_dwarf; | |||||
139 | } | |||||
140 | ||||||
141 | return colon_pos + 1; | |||||
142 | } | |||||
143 | ||||||
144 | #if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE) | |||||
145 | ||||||
146 | class DIEStack | |||||
147 | { | |||||
148 | public: | |||||
149 | ||||||
150 | void Push (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die) | |||||
151 | { | |||||
152 | m_dies.push_back (DIEInfo(cu, die)); | |||||
153 | } | |||||
154 | ||||||
155 | ||||||
156 | void LogDIEs (Log *log, SymbolFileDWARF *dwarf) | |||||
157 | { | |||||
158 | StreamString log_strm; | |||||
159 | const size_t n = m_dies.size(); | |||||
160 | log_strm.Printf("DIEStack[%" PRIu64"l" "u" "]:\n", (uint64_t)n); | |||||
161 | for (size_t i=0; i<n; i++) | |||||
162 | { | |||||
163 | DWARFCompileUnit *cu = m_dies[i].cu; | |||||
164 | const DWARFDebugInfoEntry *die = m_dies[i].die; | |||||
165 | std::string qualified_name; | |||||
166 | die->GetQualifiedName(dwarf, cu, qualified_name); | |||||
167 | log_strm.Printf ("[%" PRIu64"l" "u" "] 0x%8.8x: %s name='%s'\n", | |||||
168 | (uint64_t)i, | |||||
169 | die->GetOffset(), | |||||
170 | DW_TAG_value_to_name(die->Tag()), | |||||
171 | qualified_name.c_str()); | |||||
172 | } | |||||
173 | log->PutCString(log_strm.GetData()); | |||||
174 | } | |||||
175 | void Pop () | |||||
176 | { | |||||
177 | m_dies.pop_back(); | |||||
178 | } | |||||
179 | ||||||
180 | class ScopedPopper | |||||
181 | { | |||||
182 | public: | |||||
183 | ScopedPopper (DIEStack &die_stack) : | |||||
184 | m_die_stack (die_stack), | |||||
185 | m_valid (false) | |||||
186 | { | |||||
187 | } | |||||
188 | ||||||
189 | void | |||||
190 | Push (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die) | |||||
191 | { | |||||
192 | m_valid = true; | |||||
193 | m_die_stack.Push (cu, die); | |||||
194 | } | |||||
195 | ||||||
196 | ~ScopedPopper () | |||||
197 | { | |||||
198 | if (m_valid) | |||||
199 | m_die_stack.Pop(); | |||||
200 | } | |||||
201 | ||||||
202 | ||||||
203 | ||||||
204 | protected: | |||||
205 | DIEStack &m_die_stack; | |||||
206 | bool m_valid; | |||||
207 | }; | |||||
208 | ||||||
209 | protected: | |||||
210 | struct DIEInfo { | |||||
211 | DIEInfo (DWARFCompileUnit *c, const DWARFDebugInfoEntry *d) : | |||||
212 | cu(c), | |||||
213 | die(d) | |||||
214 | { | |||||
215 | } | |||||
216 | DWARFCompileUnit *cu; | |||||
217 | const DWARFDebugInfoEntry *die; | |||||
218 | }; | |||||
219 | typedef std::vector<DIEInfo> Stack; | |||||
220 | Stack m_dies; | |||||
221 | }; | |||||
222 | #endif | |||||
223 | ||||||
224 | void | |||||
225 | SymbolFileDWARF::Initialize() | |||||
226 | { | |||||
227 | LogChannelDWARF::Initialize(); | |||||
228 | PluginManager::RegisterPlugin (GetPluginNameStatic(), | |||||
229 | GetPluginDescriptionStatic(), | |||||
230 | CreateInstance); | |||||
231 | } | |||||
232 | ||||||
233 | void | |||||
234 | SymbolFileDWARF::Terminate() | |||||
235 | { | |||||
236 | PluginManager::UnregisterPlugin (CreateInstance); | |||||
237 | LogChannelDWARF::Initialize(); | |||||
238 | } | |||||
239 | ||||||
240 | ||||||
241 | lldb_private::ConstString | |||||
242 | SymbolFileDWARF::GetPluginNameStatic() | |||||
243 | { | |||||
244 | static ConstString g_name("dwarf"); | |||||
245 | return g_name; | |||||
246 | } | |||||
247 | ||||||
248 | const char * | |||||
249 | SymbolFileDWARF::GetPluginDescriptionStatic() | |||||
250 | { | |||||
251 | return "DWARF and DWARF3 debug symbol file reader."; | |||||
252 | } | |||||
253 | ||||||
254 | ||||||
255 | SymbolFile* | |||||
256 | SymbolFileDWARF::CreateInstance (ObjectFile* obj_file) | |||||
257 | { | |||||
258 | return new SymbolFileDWARF(obj_file); | |||||
259 | } | |||||
260 | ||||||
261 | TypeList * | |||||
262 | SymbolFileDWARF::GetTypeList () | |||||
263 | { | |||||
264 | if (GetDebugMapSymfile ()) | |||||
265 | return m_debug_map_symfile->GetTypeList(); | |||||
266 | return m_obj_file->GetModule()->GetTypeList(); | |||||
267 | ||||||
268 | } | |||||
269 | void | |||||
270 | SymbolFileDWARF::GetTypes (DWARFCompileUnit* cu, | |||||
271 | const DWARFDebugInfoEntry *die, | |||||
272 | dw_offset_t min_die_offset, | |||||
273 | dw_offset_t max_die_offset, | |||||
274 | uint32_t type_mask, | |||||
275 | TypeSet &type_set) | |||||
276 | { | |||||
277 | if (cu) | |||||
278 | { | |||||
279 | if (die) | |||||
280 | { | |||||
281 | const dw_offset_t die_offset = die->GetOffset(); | |||||
282 | ||||||
283 | if (die_offset >= max_die_offset) | |||||
284 | return; | |||||
285 | ||||||
286 | if (die_offset >= min_die_offset) | |||||
287 | { | |||||
288 | const dw_tag_t tag = die->Tag(); | |||||
289 | ||||||
290 | bool add_type = false; | |||||
291 | ||||||
292 | switch (tag) | |||||
293 | { | |||||
294 | case DW_TAG_array_type: add_type = (type_mask & eTypeClassArray ) != 0; break; | |||||
295 | case DW_TAG_unspecified_type: | |||||
296 | case DW_TAG_base_type: add_type = (type_mask & eTypeClassBuiltin ) != 0; break; | |||||
297 | case DW_TAG_class_type: add_type = (type_mask & eTypeClassClass ) != 0; break; | |||||
298 | case DW_TAG_structure_type: add_type = (type_mask & eTypeClassStruct ) != 0; break; | |||||
299 | case DW_TAG_union_type: add_type = (type_mask & eTypeClassUnion ) != 0; break; | |||||
300 | case DW_TAG_enumeration_type: add_type = (type_mask & eTypeClassEnumeration ) != 0; break; | |||||
301 | case DW_TAG_subroutine_type: | |||||
302 | case DW_TAG_subprogram: | |||||
303 | case DW_TAG_inlined_subroutine: add_type = (type_mask & eTypeClassFunction ) != 0; break; | |||||
304 | case DW_TAG_pointer_type: add_type = (type_mask & eTypeClassPointer ) != 0; break; | |||||
305 | case DW_TAG_rvalue_reference_type: | |||||
306 | case DW_TAG_reference_type: add_type = (type_mask & eTypeClassReference ) != 0; break; | |||||
307 | case DW_TAG_typedef: add_type = (type_mask & eTypeClassTypedef ) != 0; break; | |||||
308 | case DW_TAG_ptr_to_member_type: add_type = (type_mask & eTypeClassMemberPointer ) != 0; break; | |||||
309 | } | |||||
310 | ||||||
311 | if (add_type) | |||||
312 | { | |||||
313 | const bool assert_not_being_parsed = true; | |||||
314 | Type *type = ResolveTypeUID (cu, die, assert_not_being_parsed); | |||||
315 | if (type) | |||||
316 | { | |||||
317 | if (type_set.find(type) == type_set.end()) | |||||
318 | type_set.insert(type); | |||||
319 | } | |||||
320 | } | |||||
321 | } | |||||
322 | ||||||
323 | for (const DWARFDebugInfoEntry *child_die = die->GetFirstChild(); | |||||
324 | child_die != NULL__null; | |||||
325 | child_die = child_die->GetSibling()) | |||||
326 | { | |||||
327 | GetTypes (cu, child_die, min_die_offset, max_die_offset, type_mask, type_set); | |||||
328 | } | |||||
329 | } | |||||
330 | } | |||||
331 | } | |||||
332 | ||||||
333 | size_t | |||||
334 | SymbolFileDWARF::GetTypes (SymbolContextScope *sc_scope, | |||||
335 | uint32_t type_mask, | |||||
336 | TypeList &type_list) | |||||
337 | ||||||
338 | { | |||||
339 | TypeSet type_set; | |||||
340 | ||||||
341 | CompileUnit *comp_unit = NULL__null; | |||||
342 | DWARFCompileUnit* dwarf_cu = NULL__null; | |||||
343 | if (sc_scope) | |||||
344 | comp_unit = sc_scope->CalculateSymbolContextCompileUnit(); | |||||
345 | ||||||
346 | if (comp_unit) | |||||
347 | { | |||||
348 | dwarf_cu = GetDWARFCompileUnit(comp_unit); | |||||
349 | if (dwarf_cu == 0) | |||||
350 | return 0; | |||||
351 | GetTypes (dwarf_cu, | |||||
352 | dwarf_cu->DIE(), | |||||
353 | dwarf_cu->GetOffset(), | |||||
354 | dwarf_cu->GetNextCompileUnitOffset(), | |||||
355 | type_mask, | |||||
356 | type_set); | |||||
357 | } | |||||
358 | else | |||||
359 | { | |||||
360 | DWARFDebugInfo* info = DebugInfo(); | |||||
361 | if (info) | |||||
362 | { | |||||
363 | const size_t num_cus = info->GetNumCompileUnits(); | |||||
364 | for (size_t cu_idx=0; cu_idx<num_cus; ++cu_idx) | |||||
365 | { | |||||
366 | dwarf_cu = info->GetCompileUnitAtIndex(cu_idx); | |||||
367 | if (dwarf_cu) | |||||
368 | { | |||||
369 | GetTypes (dwarf_cu, | |||||
370 | dwarf_cu->DIE(), | |||||
371 | 0, | |||||
372 | UINT32_MAX(4294967295U), | |||||
373 | type_mask, | |||||
374 | type_set); | |||||
375 | } | |||||
376 | } | |||||
377 | } | |||||
378 | } | |||||
379 | // if (m_using_apple_tables) | |||||
380 | // { | |||||
381 | // DWARFMappedHash::MemoryTable *apple_types = m_apple_types_ap.get(); | |||||
382 | // if (apple_types) | |||||
383 | // { | |||||
384 | // apple_types->ForEach([this, &type_set, apple_types, type_mask](const DWARFMappedHash::DIEInfoArray &die_info_array) -> bool { | |||||
385 | // | |||||
386 | // for (auto die_info: die_info_array) | |||||
387 | // { | |||||
388 | // bool add_type = TagMatchesTypeMask (type_mask, 0); | |||||
389 | // if (!add_type) | |||||
390 | // { | |||||
391 | // dw_tag_t tag = die_info.tag; | |||||
392 | // if (tag == 0) | |||||
393 | // { | |||||
394 | // const DWARFDebugInfoEntry *die = DebugInfo()->GetDIEPtr(die_info.offset, NULL); | |||||
395 | // tag = die->Tag(); | |||||
396 | // } | |||||
397 | // add_type = TagMatchesTypeMask (type_mask, tag); | |||||
398 | // } | |||||
399 | // if (add_type) | |||||
400 | // { | |||||
401 | // Type *type = ResolveTypeUID(die_info.offset); | |||||
402 | // | |||||
403 | // if (type_set.find(type) == type_set.end()) | |||||
404 | // type_set.insert(type); | |||||
405 | // } | |||||
406 | // } | |||||
407 | // return true; // Keep iterating | |||||
408 | // }); | |||||
409 | // } | |||||
410 | // } | |||||
411 | // else | |||||
412 | // { | |||||
413 | // if (!m_indexed) | |||||
414 | // Index (); | |||||
415 | // | |||||
416 | // m_type_index.ForEach([this, &type_set, type_mask](const char *name, uint32_t die_offset) -> bool { | |||||
417 | // | |||||
418 | // bool add_type = TagMatchesTypeMask (type_mask, 0); | |||||
419 | // | |||||
420 | // if (!add_type) | |||||
421 | // { | |||||
422 | // const DWARFDebugInfoEntry *die = DebugInfo()->GetDIEPtr(die_offset, NULL); | |||||
423 | // if (die) | |||||
424 | // { | |||||
425 | // const dw_tag_t tag = die->Tag(); | |||||
426 | // add_type = TagMatchesTypeMask (type_mask, tag); | |||||
427 | // } | |||||
428 | // } | |||||
429 | // | |||||
430 | // if (add_type) | |||||
431 | // { | |||||
432 | // Type *type = ResolveTypeUID(die_offset); | |||||
433 | // | |||||
434 | // if (type_set.find(type) == type_set.end()) | |||||
435 | // type_set.insert(type); | |||||
436 | // } | |||||
437 | // return true; // Keep iterating | |||||
438 | // }); | |||||
439 | // } | |||||
440 | ||||||
441 | std::set<ClangASTType> clang_type_set; | |||||
442 | size_t num_types_added = 0; | |||||
443 | for (Type *type : type_set) | |||||
444 | { | |||||
445 | ClangASTType clang_type = type->GetClangForwardType(); | |||||
446 | if (clang_type_set.find(clang_type) == clang_type_set.end()) | |||||
447 | { | |||||
448 | clang_type_set.insert(clang_type); | |||||
449 | type_list.Insert (type->shared_from_this()); | |||||
450 | ++num_types_added; | |||||
451 | } | |||||
452 | } | |||||
453 | return num_types_added; | |||||
454 | } | |||||
455 | ||||||
456 | ||||||
457 | //---------------------------------------------------------------------- | |||||
458 | // Gets the first parent that is a lexical block, function or inlined | |||||
459 | // subroutine, or compile unit. | |||||
460 | //---------------------------------------------------------------------- | |||||
461 | static const DWARFDebugInfoEntry * | |||||
462 | GetParentSymbolContextDIE(const DWARFDebugInfoEntry *child_die) | |||||
463 | { | |||||
464 | const DWARFDebugInfoEntry *die; | |||||
465 | for (die = child_die->GetParent(); die != NULL__null; die = die->GetParent()) | |||||
466 | { | |||||
467 | dw_tag_t tag = die->Tag(); | |||||
468 | ||||||
469 | switch (tag) | |||||
470 | { | |||||
471 | case DW_TAG_compile_unit: | |||||
472 | case DW_TAG_subprogram: | |||||
473 | case DW_TAG_inlined_subroutine: | |||||
474 | case DW_TAG_lexical_block: | |||||
475 | return die; | |||||
476 | } | |||||
477 | } | |||||
478 | return NULL__null; | |||||
479 | } | |||||
480 | ||||||
481 | ||||||
482 | SymbolFileDWARF::SymbolFileDWARF(ObjectFile* objfile) : | |||||
483 | SymbolFile (objfile), | |||||
484 | UserID (0), // Used by SymbolFileDWARFDebugMap to when this class parses .o files to contain the .o file index/ID | |||||
485 | m_debug_map_module_wp (), | |||||
486 | m_debug_map_symfile (NULL__null), | |||||
487 | m_clang_tu_decl (NULL__null), | |||||
488 | m_flags(), | |||||
489 | m_data_debug_abbrev (), | |||||
490 | m_data_debug_aranges (), | |||||
491 | m_data_debug_frame (), | |||||
492 | m_data_debug_info (), | |||||
493 | m_data_debug_line (), | |||||
494 | m_data_debug_loc (), | |||||
495 | m_data_debug_ranges (), | |||||
496 | m_data_debug_str (), | |||||
497 | m_data_apple_names (), | |||||
498 | m_data_apple_types (), | |||||
499 | m_data_apple_namespaces (), | |||||
500 | m_abbr(), | |||||
501 | m_info(), | |||||
502 | m_line(), | |||||
503 | m_apple_names_ap (), | |||||
504 | m_apple_types_ap (), | |||||
505 | m_apple_namespaces_ap (), | |||||
506 | m_apple_objc_ap (), | |||||
507 | m_function_basename_index(), | |||||
508 | m_function_fullname_index(), | |||||
509 | m_function_method_index(), | |||||
510 | m_function_selector_index(), | |||||
511 | m_objc_class_selectors_index(), | |||||
512 | m_global_index(), | |||||
513 | m_type_index(), | |||||
514 | m_namespace_index(), | |||||
515 | m_indexed (false), | |||||
516 | m_is_external_ast_source (false), | |||||
517 | m_using_apple_tables (false), | |||||
518 | m_supports_DW_AT_APPLE_objc_complete_type (eLazyBoolCalculate), | |||||
519 | m_ranges(), | |||||
520 | m_unique_ast_type_map () | |||||
521 | { | |||||
522 | } | |||||
523 | ||||||
524 | SymbolFileDWARF::~SymbolFileDWARF() | |||||
525 | { | |||||
526 | if (m_is_external_ast_source) | |||||
527 | { | |||||
528 | ModuleSP module_sp (m_obj_file->GetModule()); | |||||
529 | if (module_sp) | |||||
530 | module_sp->GetClangASTContext().RemoveExternalSource (); | |||||
531 | } | |||||
532 | } | |||||
533 | ||||||
534 | static const ConstString & | |||||
535 | GetDWARFMachOSegmentName () | |||||
536 | { | |||||
537 | static ConstString g_dwarf_section_name ("__DWARF"); | |||||
538 | return g_dwarf_section_name; | |||||
539 | } | |||||
540 | ||||||
541 | UniqueDWARFASTTypeMap & | |||||
542 | SymbolFileDWARF::GetUniqueDWARFASTTypeMap () | |||||
543 | { | |||||
544 | if (GetDebugMapSymfile ()) | |||||
545 | return m_debug_map_symfile->GetUniqueDWARFASTTypeMap (); | |||||
546 | return m_unique_ast_type_map; | |||||
547 | } | |||||
548 | ||||||
549 | ClangASTContext & | |||||
550 | SymbolFileDWARF::GetClangASTContext () | |||||
551 | { | |||||
552 | if (GetDebugMapSymfile ()) | |||||
553 | return m_debug_map_symfile->GetClangASTContext (); | |||||
554 | ||||||
555 | ClangASTContext &ast = m_obj_file->GetModule()->GetClangASTContext(); | |||||
556 | if (!m_is_external_ast_source) | |||||
557 | { | |||||
558 | m_is_external_ast_source = true; | |||||
559 | llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> ast_source_ap ( | |||||
560 | new ClangExternalASTSourceCallbacks (SymbolFileDWARF::CompleteTagDecl, | |||||
561 | SymbolFileDWARF::CompleteObjCInterfaceDecl, | |||||
562 | SymbolFileDWARF::FindExternalVisibleDeclsByName, | |||||
563 | SymbolFileDWARF::LayoutRecordType, | |||||
564 | this)); | |||||
565 | ast.SetExternalSource (ast_source_ap); | |||||
566 | } | |||||
567 | return ast; | |||||
568 | } | |||||
569 | ||||||
570 | void | |||||
571 | SymbolFileDWARF::InitializeObject() | |||||
572 | { | |||||
573 | // Install our external AST source callbacks so we can complete Clang types. | |||||
574 | ModuleSP module_sp (m_obj_file->GetModule()); | |||||
575 | if (module_sp) | |||||
576 | { | |||||
577 | const SectionList *section_list = module_sp->GetSectionList(); | |||||
578 | ||||||
579 | const Section* section = section_list->FindSectionByName(GetDWARFMachOSegmentName ()).get(); | |||||
580 | ||||||
581 | // Memory map the DWARF mach-o segment so we have everything mmap'ed | |||||
582 | // to keep our heap memory usage down. | |||||
583 | if (section) | |||||
584 | m_obj_file->MemoryMapSectionData(section, m_dwarf_data); | |||||
585 | } | |||||
586 | get_apple_names_data(); | |||||
587 | if (m_data_apple_names.GetByteSize() > 0) | |||||
588 | { | |||||
589 | m_apple_names_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_names, get_debug_str_data(), ".apple_names")); | |||||
590 | if (m_apple_names_ap->IsValid()) | |||||
591 | m_using_apple_tables = true; | |||||
592 | else | |||||
593 | m_apple_names_ap.reset(); | |||||
594 | } | |||||
595 | get_apple_types_data(); | |||||
596 | if (m_data_apple_types.GetByteSize() > 0) | |||||
597 | { | |||||
598 | m_apple_types_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_types, get_debug_str_data(), ".apple_types")); | |||||
599 | if (m_apple_types_ap->IsValid()) | |||||
600 | m_using_apple_tables = true; | |||||
601 | else | |||||
602 | m_apple_types_ap.reset(); | |||||
603 | } | |||||
604 | ||||||
605 | get_apple_namespaces_data(); | |||||
606 | if (m_data_apple_namespaces.GetByteSize() > 0) | |||||
607 | { | |||||
608 | m_apple_namespaces_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_namespaces, get_debug_str_data(), ".apple_namespaces")); | |||||
609 | if (m_apple_namespaces_ap->IsValid()) | |||||
610 | m_using_apple_tables = true; | |||||
611 | else | |||||
612 | m_apple_namespaces_ap.reset(); | |||||
613 | } | |||||
614 | ||||||
615 | get_apple_objc_data(); | |||||
616 | if (m_data_apple_objc.GetByteSize() > 0) | |||||
617 | { | |||||
618 | m_apple_objc_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_objc, get_debug_str_data(), ".apple_objc")); | |||||
619 | if (m_apple_objc_ap->IsValid()) | |||||
620 | m_using_apple_tables = true; | |||||
621 | else | |||||
622 | m_apple_objc_ap.reset(); | |||||
623 | } | |||||
624 | } | |||||
625 | ||||||
626 | bool | |||||
627 | SymbolFileDWARF::SupportedVersion(uint16_t version) | |||||
628 | { | |||||
629 | return version == 2 || version == 3 || version == 4; | |||||
630 | } | |||||
631 | ||||||
632 | uint32_t | |||||
633 | SymbolFileDWARF::CalculateAbilities () | |||||
634 | { | |||||
635 | uint32_t abilities = 0; | |||||
636 | if (m_obj_file != NULL__null) | |||||
637 | { | |||||
638 | const Section* section = NULL__null; | |||||
639 | const SectionList *section_list = m_obj_file->GetSectionList(); | |||||
640 | if (section_list == NULL__null) | |||||
641 | return 0; | |||||
642 | ||||||
643 | uint64_t debug_abbrev_file_size = 0; | |||||
644 | uint64_t debug_info_file_size = 0; | |||||
645 | uint64_t debug_line_file_size = 0; | |||||
646 | ||||||
647 | section = section_list->FindSectionByName(GetDWARFMachOSegmentName ()).get(); | |||||
648 | ||||||
649 | if (section) | |||||
650 | section_list = §ion->GetChildren (); | |||||
651 | ||||||
652 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugInfo, true).get(); | |||||
653 | if (section != NULL__null) | |||||
654 | { | |||||
655 | debug_info_file_size = section->GetFileSize(); | |||||
656 | ||||||
657 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugAbbrev, true).get(); | |||||
658 | if (section) | |||||
659 | debug_abbrev_file_size = section->GetFileSize(); | |||||
660 | else | |||||
661 | m_flags.Set (flagsGotDebugAbbrevData); | |||||
662 | ||||||
663 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugAranges, true).get(); | |||||
664 | if (!section) | |||||
665 | m_flags.Set (flagsGotDebugArangesData); | |||||
666 | ||||||
667 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugFrame, true).get(); | |||||
668 | if (!section) | |||||
669 | m_flags.Set (flagsGotDebugFrameData); | |||||
670 | ||||||
671 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugLine, true).get(); | |||||
672 | if (section) | |||||
673 | debug_line_file_size = section->GetFileSize(); | |||||
674 | else | |||||
675 | m_flags.Set (flagsGotDebugLineData); | |||||
676 | ||||||
677 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugLoc, true).get(); | |||||
678 | if (!section) | |||||
679 | m_flags.Set (flagsGotDebugLocData); | |||||
680 | ||||||
681 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugMacInfo, true).get(); | |||||
682 | if (!section) | |||||
683 | m_flags.Set (flagsGotDebugMacInfoData); | |||||
684 | ||||||
685 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugPubNames, true).get(); | |||||
686 | if (!section) | |||||
687 | m_flags.Set (flagsGotDebugPubNamesData); | |||||
688 | ||||||
689 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugPubTypes, true).get(); | |||||
690 | if (!section) | |||||
691 | m_flags.Set (flagsGotDebugPubTypesData); | |||||
692 | ||||||
693 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugRanges, true).get(); | |||||
694 | if (!section) | |||||
695 | m_flags.Set (flagsGotDebugRangesData); | |||||
696 | ||||||
697 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugStr, true).get(); | |||||
698 | if (!section) | |||||
699 | m_flags.Set (flagsGotDebugStrData); | |||||
700 | } | |||||
701 | else | |||||
702 | { | |||||
703 | const char *symfile_dir_cstr = m_obj_file->GetFileSpec().GetDirectory().GetCString(); | |||||
704 | if (symfile_dir_cstr) | |||||
705 | { | |||||
706 | if (strcasestr(symfile_dir_cstr, ".dsym")) | |||||
707 | { | |||||
708 | if (m_obj_file->GetType() == ObjectFile::eTypeDebugInfo) | |||||
709 | { | |||||
710 | // We have a dSYM file that didn't have a any debug info. | |||||
711 | // If the string table has a size of 1, then it was made from | |||||
712 | // an executable with no debug info, or from an executable that | |||||
713 | // was stripped. | |||||
714 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugStr, true).get(); | |||||
715 | if (section && section->GetFileSize() == 1) | |||||
716 | { | |||||
717 | m_obj_file->GetModule()->ReportWarning ("empty dSYM file detected, dSYM was created with an executable with no debug info."); | |||||
718 | } | |||||
719 | } | |||||
720 | } | |||||
721 | } | |||||
722 | } | |||||
723 | ||||||
724 | if (debug_abbrev_file_size > 0 && debug_info_file_size > 0) | |||||
725 | abilities |= CompileUnits | Functions | Blocks | GlobalVariables | LocalVariables | VariableTypes; | |||||
726 | ||||||
727 | if (debug_line_file_size > 0) | |||||
728 | abilities |= LineTables; | |||||
729 | } | |||||
730 | return abilities; | |||||
731 | } | |||||
732 | ||||||
733 | const DWARFDataExtractor& | |||||
734 | SymbolFileDWARF::GetCachedSectionData (uint32_t got_flag, SectionType sect_type, DWARFDataExtractor &data) | |||||
735 | { | |||||
736 | if (m_flags.IsClear (got_flag)) | |||||
737 | { | |||||
738 | ModuleSP module_sp (m_obj_file->GetModule()); | |||||
739 | m_flags.Set (got_flag); | |||||
740 | const SectionList *section_list = module_sp->GetSectionList(); | |||||
741 | if (section_list) | |||||
742 | { | |||||
743 | SectionSP section_sp (section_list->FindSectionByType(sect_type, true)); | |||||
744 | if (section_sp) | |||||
745 | { | |||||
746 | // See if we memory mapped the DWARF segment? | |||||
747 | if (m_dwarf_data.GetByteSize()) | |||||
748 | { | |||||
749 | data.SetData(m_dwarf_data, section_sp->GetOffset (), section_sp->GetFileSize()); | |||||
750 | } | |||||
751 | else | |||||
752 | { | |||||
753 | if (m_obj_file->ReadSectionData (section_sp.get(), data) == 0) | |||||
754 | data.Clear(); | |||||
755 | } | |||||
756 | } | |||||
757 | } | |||||
758 | } | |||||
759 | return data; | |||||
760 | } | |||||
761 | ||||||
762 | const DWARFDataExtractor& | |||||
763 | SymbolFileDWARF::get_debug_abbrev_data() | |||||
764 | { | |||||
765 | return GetCachedSectionData (flagsGotDebugAbbrevData, eSectionTypeDWARFDebugAbbrev, m_data_debug_abbrev); | |||||
766 | } | |||||
767 | ||||||
768 | const DWARFDataExtractor& | |||||
769 | SymbolFileDWARF::get_debug_aranges_data() | |||||
770 | { | |||||
771 | return GetCachedSectionData (flagsGotDebugArangesData, eSectionTypeDWARFDebugAranges, m_data_debug_aranges); | |||||
772 | } | |||||
773 | ||||||
774 | const DWARFDataExtractor& | |||||
775 | SymbolFileDWARF::get_debug_frame_data() | |||||
776 | { | |||||
777 | return GetCachedSectionData (flagsGotDebugFrameData, eSectionTypeDWARFDebugFrame, m_data_debug_frame); | |||||
778 | } | |||||
779 | ||||||
780 | const DWARFDataExtractor& | |||||
781 | SymbolFileDWARF::get_debug_info_data() | |||||
782 | { | |||||
783 | return GetCachedSectionData (flagsGotDebugInfoData, eSectionTypeDWARFDebugInfo, m_data_debug_info); | |||||
784 | } | |||||
785 | ||||||
786 | const DWARFDataExtractor& | |||||
787 | SymbolFileDWARF::get_debug_line_data() | |||||
788 | { | |||||
789 | return GetCachedSectionData (flagsGotDebugLineData, eSectionTypeDWARFDebugLine, m_data_debug_line); | |||||
790 | } | |||||
791 | ||||||
792 | const DWARFDataExtractor& | |||||
793 | SymbolFileDWARF::get_debug_loc_data() | |||||
794 | { | |||||
795 | return GetCachedSectionData (flagsGotDebugLocData, eSectionTypeDWARFDebugLoc, m_data_debug_loc); | |||||
796 | } | |||||
797 | ||||||
798 | const DWARFDataExtractor& | |||||
799 | SymbolFileDWARF::get_debug_ranges_data() | |||||
800 | { | |||||
801 | return GetCachedSectionData (flagsGotDebugRangesData, eSectionTypeDWARFDebugRanges, m_data_debug_ranges); | |||||
802 | } | |||||
803 | ||||||
804 | const DWARFDataExtractor& | |||||
805 | SymbolFileDWARF::get_debug_str_data() | |||||
806 | { | |||||
807 | return GetCachedSectionData (flagsGotDebugStrData, eSectionTypeDWARFDebugStr, m_data_debug_str); | |||||
808 | } | |||||
809 | ||||||
810 | const DWARFDataExtractor& | |||||
811 | SymbolFileDWARF::get_apple_names_data() | |||||
812 | { | |||||
813 | return GetCachedSectionData (flagsGotAppleNamesData, eSectionTypeDWARFAppleNames, m_data_apple_names); | |||||
814 | } | |||||
815 | ||||||
816 | const DWARFDataExtractor& | |||||
817 | SymbolFileDWARF::get_apple_types_data() | |||||
818 | { | |||||
819 | return GetCachedSectionData (flagsGotAppleTypesData, eSectionTypeDWARFAppleTypes, m_data_apple_types); | |||||
820 | } | |||||
821 | ||||||
822 | const DWARFDataExtractor& | |||||
823 | SymbolFileDWARF::get_apple_namespaces_data() | |||||
824 | { | |||||
825 | return GetCachedSectionData (flagsGotAppleNamespacesData, eSectionTypeDWARFAppleNamespaces, m_data_apple_namespaces); | |||||
826 | } | |||||
827 | ||||||
828 | const DWARFDataExtractor& | |||||
829 | SymbolFileDWARF::get_apple_objc_data() | |||||
830 | { | |||||
831 | return GetCachedSectionData (flagsGotAppleObjCData, eSectionTypeDWARFAppleObjC, m_data_apple_objc); | |||||
832 | } | |||||
833 | ||||||
834 | ||||||
835 | DWARFDebugAbbrev* | |||||
836 | SymbolFileDWARF::DebugAbbrev() | |||||
837 | { | |||||
838 | if (m_abbr.get() == NULL__null) | |||||
839 | { | |||||
840 | const DWARFDataExtractor &debug_abbrev_data = get_debug_abbrev_data(); | |||||
841 | if (debug_abbrev_data.GetByteSize() > 0) | |||||
842 | { | |||||
843 | m_abbr.reset(new DWARFDebugAbbrev()); | |||||
844 | if (m_abbr.get()) | |||||
845 | m_abbr->Parse(debug_abbrev_data); | |||||
846 | } | |||||
847 | } | |||||
848 | return m_abbr.get(); | |||||
849 | } | |||||
850 | ||||||
851 | const DWARFDebugAbbrev* | |||||
852 | SymbolFileDWARF::DebugAbbrev() const | |||||
853 | { | |||||
854 | return m_abbr.get(); | |||||
855 | } | |||||
856 | ||||||
857 | ||||||
858 | DWARFDebugInfo* | |||||
859 | SymbolFileDWARF::DebugInfo() | |||||
860 | { | |||||
861 | if (m_info.get() == NULL__null) | |||||
862 | { | |||||
863 | Timer scoped_timer(__PRETTY_FUNCTION__, "%s this = %p", | |||||
864 | __PRETTY_FUNCTION__, static_cast<void*>(this)); | |||||
865 | if (get_debug_info_data().GetByteSize() > 0) | |||||
866 | { | |||||
867 | m_info.reset(new DWARFDebugInfo()); | |||||
868 | if (m_info.get()) | |||||
869 | { | |||||
870 | m_info->SetDwarfData(this); | |||||
871 | } | |||||
872 | } | |||||
873 | } | |||||
874 | return m_info.get(); | |||||
875 | } | |||||
876 | ||||||
877 | const DWARFDebugInfo* | |||||
878 | SymbolFileDWARF::DebugInfo() const | |||||
879 | { | |||||
880 | return m_info.get(); | |||||
881 | } | |||||
882 | ||||||
883 | DWARFCompileUnit* | |||||
884 | SymbolFileDWARF::GetDWARFCompileUnit(lldb_private::CompileUnit *comp_unit) | |||||
885 | { | |||||
886 | DWARFDebugInfo* info = DebugInfo(); | |||||
887 | if (info) | |||||
888 | { | |||||
889 | if (GetDebugMapSymfile ()) | |||||
890 | { | |||||
891 | // The debug map symbol file made the compile units for this DWARF | |||||
892 | // file which is .o file with DWARF in it, and we should have | |||||
893 | // only 1 compile unit which is at offset zero in the DWARF. | |||||
894 | // TODO: modify to support LTO .o files where each .o file might | |||||
895 | // have multiple DW_TAG_compile_unit tags. | |||||
896 | return info->GetCompileUnit(0).get(); | |||||
897 | } | |||||
898 | else | |||||
899 | { | |||||
900 | // Just a normal DWARF file whose user ID for the compile unit is | |||||
901 | // the DWARF offset itself | |||||
902 | return info->GetCompileUnit((dw_offset_t)comp_unit->GetID()).get(); | |||||
903 | } | |||||
904 | } | |||||
905 | return NULL__null; | |||||
906 | } | |||||
907 | ||||||
908 | ||||||
909 | DWARFDebugRanges* | |||||
910 | SymbolFileDWARF::DebugRanges() | |||||
911 | { | |||||
912 | if (m_ranges.get() == NULL__null) | |||||
913 | { | |||||
914 | Timer scoped_timer(__PRETTY_FUNCTION__, "%s this = %p", | |||||
915 | __PRETTY_FUNCTION__, static_cast<void*>(this)); | |||||
916 | if (get_debug_ranges_data().GetByteSize() > 0) | |||||
917 | { | |||||
918 | m_ranges.reset(new DWARFDebugRanges()); | |||||
919 | if (m_ranges.get()) | |||||
920 | m_ranges->Extract(this); | |||||
921 | } | |||||
922 | } | |||||
923 | return m_ranges.get(); | |||||
924 | } | |||||
925 | ||||||
926 | const DWARFDebugRanges* | |||||
927 | SymbolFileDWARF::DebugRanges() const | |||||
928 | { | |||||
929 | return m_ranges.get(); | |||||
930 | } | |||||
931 | ||||||
932 | lldb::CompUnitSP | |||||
933 | SymbolFileDWARF::ParseCompileUnit (DWARFCompileUnit* dwarf_cu, uint32_t cu_idx) | |||||
934 | { | |||||
935 | CompUnitSP cu_sp; | |||||
936 | if (dwarf_cu) | |||||
937 | { | |||||
938 | CompileUnit *comp_unit = (CompileUnit*)dwarf_cu->GetUserData(); | |||||
939 | if (comp_unit) | |||||
940 | { | |||||
941 | // We already parsed this compile unit, had out a shared pointer to it | |||||
942 | cu_sp = comp_unit->shared_from_this(); | |||||
943 | } | |||||
944 | else | |||||
945 | { | |||||
946 | if (GetDebugMapSymfile ()) | |||||
947 | { | |||||
948 | // Let the debug map create the compile unit | |||||
949 | cu_sp = m_debug_map_symfile->GetCompileUnit(this); | |||||
950 | dwarf_cu->SetUserData(cu_sp.get()); | |||||
951 | } | |||||
952 | else | |||||
953 | { | |||||
954 | ModuleSP module_sp (m_obj_file->GetModule()); | |||||
955 | if (module_sp) | |||||
956 | { | |||||
957 | const DWARFDebugInfoEntry * cu_die = dwarf_cu->GetCompileUnitDIEOnly (); | |||||
958 | if (cu_die) | |||||
959 | { | |||||
960 | const char * cu_die_name = cu_die->GetName(this, dwarf_cu); | |||||
961 | const char * cu_comp_dir = cu_die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_comp_dir, NULL__null); | |||||
962 | LanguageType cu_language = (LanguageType)cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_language, 0); | |||||
963 | if (cu_die_name) | |||||
964 | { | |||||
965 | std::string ramapped_file; | |||||
966 | FileSpec cu_file_spec; | |||||
967 | ||||||
968 | if (cu_die_name[0] == '/' || cu_comp_dir == NULL__null || cu_comp_dir[0] == '\0') | |||||
969 | { | |||||
970 | // If we have a full path to the compile unit, we don't need to resolve | |||||
971 | // the file. This can be expensive e.g. when the source files are NFS mounted. | |||||
972 | if (module_sp->RemapSourceFile(cu_die_name, ramapped_file)) | |||||
973 | cu_file_spec.SetFile (ramapped_file.c_str(), false); | |||||
974 | else | |||||
975 | cu_file_spec.SetFile (cu_die_name, false); | |||||
976 | } | |||||
977 | else | |||||
978 | { | |||||
979 | // DWARF2/3 suggests the form hostname:pathname for compilation directory. | |||||
980 | // Remove the host part if present. | |||||
981 | cu_comp_dir = removeHostnameFromPathname(cu_comp_dir); | |||||
982 | std::string fullpath(cu_comp_dir); | |||||
983 | ||||||
984 | if (*fullpath.rbegin() != '/') | |||||
985 | fullpath += '/'; | |||||
986 | fullpath += cu_die_name; | |||||
987 | if (module_sp->RemapSourceFile (fullpath.c_str(), ramapped_file)) | |||||
988 | cu_file_spec.SetFile (ramapped_file.c_str(), false); | |||||
989 | else | |||||
990 | cu_file_spec.SetFile (fullpath.c_str(), false); | |||||
991 | } | |||||
992 | ||||||
993 | cu_sp.reset(new CompileUnit (module_sp, | |||||
994 | dwarf_cu, | |||||
995 | cu_file_spec, | |||||
996 | MakeUserID(dwarf_cu->GetOffset()), | |||||
997 | cu_language)); | |||||
998 | if (cu_sp) | |||||
999 | { | |||||
1000 | dwarf_cu->SetUserData(cu_sp.get()); | |||||
1001 | ||||||
1002 | // Figure out the compile unit index if we weren't given one | |||||
1003 | if (cu_idx == UINT32_MAX(4294967295U)) | |||||
1004 | DebugInfo()->GetCompileUnit(dwarf_cu->GetOffset(), &cu_idx); | |||||
1005 | ||||||
1006 | m_obj_file->GetModule()->GetSymbolVendor()->SetCompileUnitAtIndex(cu_idx, cu_sp); | |||||
1007 | } | |||||
1008 | } | |||||
1009 | } | |||||
1010 | } | |||||
1011 | } | |||||
1012 | } | |||||
1013 | } | |||||
1014 | return cu_sp; | |||||
1015 | } | |||||
1016 | ||||||
1017 | uint32_t | |||||
1018 | SymbolFileDWARF::GetNumCompileUnits() | |||||
1019 | { | |||||
1020 | DWARFDebugInfo* info = DebugInfo(); | |||||
1021 | if (info) | |||||
1022 | return info->GetNumCompileUnits(); | |||||
1023 | return 0; | |||||
1024 | } | |||||
1025 | ||||||
1026 | CompUnitSP | |||||
1027 | SymbolFileDWARF::ParseCompileUnitAtIndex(uint32_t cu_idx) | |||||
1028 | { | |||||
1029 | CompUnitSP cu_sp; | |||||
1030 | DWARFDebugInfo* info = DebugInfo(); | |||||
1031 | if (info) | |||||
1032 | { | |||||
1033 | DWARFCompileUnit* dwarf_cu = info->GetCompileUnitAtIndex(cu_idx); | |||||
1034 | if (dwarf_cu) | |||||
1035 | cu_sp = ParseCompileUnit(dwarf_cu, cu_idx); | |||||
1036 | } | |||||
1037 | return cu_sp; | |||||
1038 | } | |||||
1039 | ||||||
1040 | static void | |||||
1041 | AddRangesToBlock (Block& block, | |||||
1042 | DWARFDebugRanges::RangeList& ranges, | |||||
1043 | addr_t block_base_addr) | |||||
1044 | { | |||||
1045 | const size_t num_ranges = ranges.GetSize(); | |||||
1046 | for (size_t i = 0; i<num_ranges; ++i) | |||||
1047 | { | |||||
1048 | const DWARFDebugRanges::Range &range = ranges.GetEntryRef (i); | |||||
1049 | const addr_t range_base = range.GetRangeBase(); | |||||
1050 | assert (range_base >= block_base_addr)((range_base >= block_base_addr) ? static_cast<void> (0) : __assert_fail ("range_base >= block_base_addr", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1050, __PRETTY_FUNCTION__)); | |||||
1051 | block.AddRange(Block::Range (range_base - block_base_addr, range.GetByteSize()));; | |||||
1052 | } | |||||
1053 | block.FinalizeRanges (); | |||||
1054 | } | |||||
1055 | ||||||
1056 | ||||||
1057 | Function * | |||||
1058 | SymbolFileDWARF::ParseCompileUnitFunction (const SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die) | |||||
1059 | { | |||||
1060 | DWARFDebugRanges::RangeList func_ranges; | |||||
1061 | const char *name = NULL__null; | |||||
1062 | const char *mangled = NULL__null; | |||||
1063 | int decl_file = 0; | |||||
1064 | int decl_line = 0; | |||||
1065 | int decl_column = 0; | |||||
1066 | int call_file = 0; | |||||
1067 | int call_line = 0; | |||||
1068 | int call_column = 0; | |||||
1069 | DWARFExpression frame_base; | |||||
1070 | ||||||
1071 | assert (die->Tag() == DW_TAG_subprogram)((die->Tag() == DW_TAG_subprogram) ? static_cast<void> (0) : __assert_fail ("die->Tag() == DW_TAG_subprogram", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1071, __PRETTY_FUNCTION__)); | |||||
1072 | ||||||
1073 | if (die->Tag() != DW_TAG_subprogram) | |||||
1074 | return NULL__null; | |||||
1075 | ||||||
1076 | if (die->GetDIENamesAndRanges (this, | |||||
1077 | dwarf_cu, | |||||
1078 | name, | |||||
1079 | mangled, | |||||
1080 | func_ranges, | |||||
1081 | decl_file, | |||||
1082 | decl_line, | |||||
1083 | decl_column, | |||||
1084 | call_file, | |||||
1085 | call_line, | |||||
1086 | call_column, | |||||
1087 | &frame_base)) | |||||
1088 | { | |||||
1089 | // Union of all ranges in the function DIE (if the function is discontiguous) | |||||
1090 | AddressRange func_range; | |||||
1091 | lldb::addr_t lowest_func_addr = func_ranges.GetMinRangeBase (0); | |||||
1092 | lldb::addr_t highest_func_addr = func_ranges.GetMaxRangeEnd (0); | |||||
1093 | if (lowest_func_addr != LLDB_INVALID_ADDRESS(18446744073709551615UL) && lowest_func_addr <= highest_func_addr) | |||||
1094 | { | |||||
1095 | ModuleSP module_sp (m_obj_file->GetModule()); | |||||
1096 | func_range.GetBaseAddress().ResolveAddressUsingFileSections (lowest_func_addr, module_sp->GetSectionList()); | |||||
1097 | if (func_range.GetBaseAddress().IsValid()) | |||||
1098 | func_range.SetByteSize(highest_func_addr - lowest_func_addr); | |||||
1099 | } | |||||
1100 | ||||||
1101 | if (func_range.GetBaseAddress().IsValid()) | |||||
1102 | { | |||||
1103 | Mangled func_name; | |||||
1104 | if (mangled) | |||||
1105 | func_name.SetValue(ConstString(mangled), true); | |||||
1106 | else if (name) | |||||
1107 | func_name.SetValue(ConstString(name), false); | |||||
1108 | ||||||
1109 | FunctionSP func_sp; | |||||
1110 | std::unique_ptr<Declaration> decl_ap; | |||||
1111 | if (decl_file != 0 || decl_line != 0 || decl_column != 0) | |||||
1112 | decl_ap.reset(new Declaration (sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(decl_file), | |||||
1113 | decl_line, | |||||
1114 | decl_column)); | |||||
1115 | ||||||
1116 | // Supply the type _only_ if it has already been parsed | |||||
1117 | Type *func_type = m_die_to_type.lookup (die); | |||||
1118 | ||||||
1119 | assert(func_type == NULL || func_type != DIE_IS_BEING_PARSED)((func_type == __null || func_type != ((lldb_private::Type*)1 )) ? static_cast<void> (0) : __assert_fail ("func_type == __null || func_type != ((lldb_private::Type*)1)" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1119, __PRETTY_FUNCTION__)); | |||||
1120 | ||||||
1121 | if (FixupAddress (func_range.GetBaseAddress())) | |||||
1122 | { | |||||
1123 | const user_id_t func_user_id = MakeUserID(die->GetOffset()); | |||||
1124 | func_sp.reset(new Function (sc.comp_unit, | |||||
1125 | MakeUserID(func_user_id), // UserID is the DIE offset | |||||
1126 | MakeUserID(func_user_id), | |||||
1127 | func_name, | |||||
1128 | func_type, | |||||
1129 | func_range)); // first address range | |||||
1130 | ||||||
1131 | if (func_sp.get() != NULL__null) | |||||
1132 | { | |||||
1133 | if (frame_base.IsValid()) | |||||
1134 | func_sp->GetFrameBaseExpression() = frame_base; | |||||
1135 | sc.comp_unit->AddFunction(func_sp); | |||||
1136 | return func_sp.get(); | |||||
1137 | } | |||||
1138 | } | |||||
1139 | } | |||||
1140 | } | |||||
1141 | return NULL__null; | |||||
1142 | } | |||||
1143 | ||||||
1144 | bool | |||||
1145 | SymbolFileDWARF::FixupAddress (Address &addr) | |||||
1146 | { | |||||
1147 | SymbolFileDWARFDebugMap * debug_map_symfile = GetDebugMapSymfile (); | |||||
1148 | if (debug_map_symfile) | |||||
1149 | { | |||||
1150 | return debug_map_symfile->LinkOSOAddress(addr); | |||||
1151 | } | |||||
1152 | // This is a normal DWARF file, no address fixups need to happen | |||||
1153 | return true; | |||||
1154 | } | |||||
1155 | lldb::LanguageType | |||||
1156 | SymbolFileDWARF::ParseCompileUnitLanguage (const SymbolContext& sc) | |||||
1157 | { | |||||
1158 | assert (sc.comp_unit)((sc.comp_unit) ? static_cast<void> (0) : __assert_fail ("sc.comp_unit", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1158, __PRETTY_FUNCTION__)); | |||||
1159 | DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit); | |||||
1160 | if (dwarf_cu) | |||||
1161 | { | |||||
1162 | const DWARFDebugInfoEntry *die = dwarf_cu->GetCompileUnitDIEOnly(); | |||||
1163 | if (die) | |||||
1164 | { | |||||
1165 | const uint32_t language = die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_language, 0); | |||||
1166 | if (language) | |||||
1167 | return (lldb::LanguageType)language; | |||||
1168 | } | |||||
1169 | } | |||||
1170 | return eLanguageTypeUnknown; | |||||
1171 | } | |||||
1172 | ||||||
1173 | size_t | |||||
1174 | SymbolFileDWARF::ParseCompileUnitFunctions(const SymbolContext &sc) | |||||
1175 | { | |||||
1176 | assert (sc.comp_unit)((sc.comp_unit) ? static_cast<void> (0) : __assert_fail ("sc.comp_unit", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1176, __PRETTY_FUNCTION__)); | |||||
1177 | size_t functions_added = 0; | |||||
1178 | DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit); | |||||
1179 | if (dwarf_cu) | |||||
1180 | { | |||||
1181 | DWARFDIECollection function_dies; | |||||
1182 | const size_t num_functions = dwarf_cu->AppendDIEsWithTag (DW_TAG_subprogram, function_dies); | |||||
1183 | size_t func_idx; | |||||
1184 | for (func_idx = 0; func_idx < num_functions; ++func_idx) | |||||
1185 | { | |||||
1186 | const DWARFDebugInfoEntry *die = function_dies.GetDIEPtrAtIndex(func_idx); | |||||
1187 | if (sc.comp_unit->FindFunctionByUID (MakeUserID(die->GetOffset())).get() == NULL__null) | |||||
1188 | { | |||||
1189 | if (ParseCompileUnitFunction(sc, dwarf_cu, die)) | |||||
1190 | ++functions_added; | |||||
1191 | } | |||||
1192 | } | |||||
1193 | //FixupTypes(); | |||||
1194 | } | |||||
1195 | return functions_added; | |||||
1196 | } | |||||
1197 | ||||||
1198 | bool | |||||
1199 | SymbolFileDWARF::ParseCompileUnitSupportFiles (const SymbolContext& sc, FileSpecList& support_files) | |||||
1200 | { | |||||
1201 | assert (sc.comp_unit)((sc.comp_unit) ? static_cast<void> (0) : __assert_fail ("sc.comp_unit", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1201, __PRETTY_FUNCTION__)); | |||||
1202 | DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit); | |||||
1203 | if (dwarf_cu) | |||||
1204 | { | |||||
1205 | const DWARFDebugInfoEntry * cu_die = dwarf_cu->GetCompileUnitDIEOnly(); | |||||
1206 | ||||||
1207 | if (cu_die) | |||||
1208 | { | |||||
1209 | const char * cu_comp_dir = cu_die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_comp_dir, NULL__null); | |||||
1210 | ||||||
1211 | // DWARF2/3 suggests the form hostname:pathname for compilation directory. | |||||
1212 | // Remove the host part if present. | |||||
1213 | cu_comp_dir = removeHostnameFromPathname(cu_comp_dir); | |||||
1214 | ||||||
1215 | dw_offset_t stmt_list = cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_stmt_list, DW_INVALID_OFFSET(~(dw_offset_t)0)); | |||||
1216 | ||||||
1217 | // All file indexes in DWARF are one based and a file of index zero is | |||||
1218 | // supposed to be the compile unit itself. | |||||
1219 | support_files.Append (*sc.comp_unit); | |||||
1220 | ||||||
1221 | return DWARFDebugLine::ParseSupportFiles(sc.comp_unit->GetModule(), get_debug_line_data(), cu_comp_dir, stmt_list, support_files); | |||||
1222 | } | |||||
1223 | } | |||||
1224 | return false; | |||||
1225 | } | |||||
1226 | ||||||
1227 | struct ParseDWARFLineTableCallbackInfo | |||||
1228 | { | |||||
1229 | LineTable* line_table; | |||||
1230 | std::unique_ptr<LineSequence> sequence_ap; | |||||
1231 | }; | |||||
1232 | ||||||
1233 | //---------------------------------------------------------------------- | |||||
1234 | // ParseStatementTableCallback | |||||
1235 | //---------------------------------------------------------------------- | |||||
1236 | static void | |||||
1237 | ParseDWARFLineTableCallback(dw_offset_t offset, const DWARFDebugLine::State& state, void* userData) | |||||
1238 | { | |||||
1239 | if (state.row == DWARFDebugLine::State::StartParsingLineTable) | |||||
1240 | { | |||||
1241 | // Just started parsing the line table | |||||
1242 | } | |||||
1243 | else if (state.row == DWARFDebugLine::State::DoneParsingLineTable) | |||||
1244 | { | |||||
1245 | // Done parsing line table, nothing to do for the cleanup | |||||
1246 | } | |||||
1247 | else | |||||
1248 | { | |||||
1249 | ParseDWARFLineTableCallbackInfo* info = (ParseDWARFLineTableCallbackInfo*)userData; | |||||
1250 | LineTable* line_table = info->line_table; | |||||
1251 | ||||||
1252 | // If this is our first time here, we need to create a | |||||
1253 | // sequence container. | |||||
1254 | if (!info->sequence_ap.get()) | |||||
1255 | { | |||||
1256 | info->sequence_ap.reset(line_table->CreateLineSequenceContainer()); | |||||
1257 | assert(info->sequence_ap.get())((info->sequence_ap.get()) ? static_cast<void> (0) : __assert_fail ("info->sequence_ap.get()", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1257, __PRETTY_FUNCTION__)); | |||||
1258 | } | |||||
1259 | line_table->AppendLineEntryToSequence (info->sequence_ap.get(), | |||||
1260 | state.address, | |||||
1261 | state.line, | |||||
1262 | state.column, | |||||
1263 | state.file, | |||||
1264 | state.is_stmt, | |||||
1265 | state.basic_block, | |||||
1266 | state.prologue_end, | |||||
1267 | state.epilogue_begin, | |||||
1268 | state.end_sequence); | |||||
1269 | if (state.end_sequence) | |||||
1270 | { | |||||
1271 | // First, put the current sequence into the line table. | |||||
1272 | line_table->InsertSequence(info->sequence_ap.get()); | |||||
1273 | // Then, empty it to prepare for the next sequence. | |||||
1274 | info->sequence_ap->Clear(); | |||||
1275 | } | |||||
1276 | } | |||||
1277 | } | |||||
1278 | ||||||
1279 | bool | |||||
1280 | SymbolFileDWARF::ParseCompileUnitLineTable (const SymbolContext &sc) | |||||
1281 | { | |||||
1282 | assert (sc.comp_unit)((sc.comp_unit) ? static_cast<void> (0) : __assert_fail ("sc.comp_unit", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1282, __PRETTY_FUNCTION__)); | |||||
1283 | if (sc.comp_unit->GetLineTable() != NULL__null) | |||||
1284 | return true; | |||||
1285 | ||||||
1286 | DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit); | |||||
1287 | if (dwarf_cu) | |||||
1288 | { | |||||
1289 | const DWARFDebugInfoEntry *dwarf_cu_die = dwarf_cu->GetCompileUnitDIEOnly(); | |||||
1290 | if (dwarf_cu_die) | |||||
1291 | { | |||||
1292 | const dw_offset_t cu_line_offset = dwarf_cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_stmt_list, DW_INVALID_OFFSET(~(dw_offset_t)0)); | |||||
1293 | if (cu_line_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||||
1294 | { | |||||
1295 | std::unique_ptr<LineTable> line_table_ap(new LineTable(sc.comp_unit)); | |||||
1296 | if (line_table_ap.get()) | |||||
1297 | { | |||||
1298 | ParseDWARFLineTableCallbackInfo info; | |||||
1299 | info.line_table = line_table_ap.get(); | |||||
1300 | lldb::offset_t offset = cu_line_offset; | |||||
1301 | DWARFDebugLine::ParseStatementTable(get_debug_line_data(), &offset, ParseDWARFLineTableCallback, &info); | |||||
1302 | if (m_debug_map_symfile) | |||||
1303 | { | |||||
1304 | // We have an object file that has a line table with addresses | |||||
1305 | // that are not linked. We need to link the line table and convert | |||||
1306 | // the addresses that are relative to the .o file into addresses | |||||
1307 | // for the main executable. | |||||
1308 | sc.comp_unit->SetLineTable (m_debug_map_symfile->LinkOSOLineTable (this, line_table_ap.get())); | |||||
1309 | } | |||||
1310 | else | |||||
1311 | { | |||||
1312 | sc.comp_unit->SetLineTable(line_table_ap.release()); | |||||
1313 | return true; | |||||
1314 | } | |||||
1315 | } | |||||
1316 | } | |||||
1317 | } | |||||
1318 | } | |||||
1319 | return false; | |||||
1320 | } | |||||
1321 | ||||||
1322 | size_t | |||||
1323 | SymbolFileDWARF::ParseFunctionBlocks | |||||
1324 | ( | |||||
1325 | const SymbolContext& sc, | |||||
1326 | Block *parent_block, | |||||
1327 | DWARFCompileUnit* dwarf_cu, | |||||
1328 | const DWARFDebugInfoEntry *die, | |||||
1329 | addr_t subprogram_low_pc, | |||||
1330 | uint32_t depth | |||||
1331 | ) | |||||
1332 | { | |||||
1333 | size_t blocks_added = 0; | |||||
1334 | while (die != NULL__null) | |||||
1335 | { | |||||
1336 | dw_tag_t tag = die->Tag(); | |||||
1337 | ||||||
1338 | switch (tag) | |||||
1339 | { | |||||
1340 | case DW_TAG_inlined_subroutine: | |||||
1341 | case DW_TAG_subprogram: | |||||
1342 | case DW_TAG_lexical_block: | |||||
1343 | { | |||||
1344 | Block *block = NULL__null; | |||||
1345 | if (tag == DW_TAG_subprogram) | |||||
1346 | { | |||||
1347 | // Skip any DW_TAG_subprogram DIEs that are inside | |||||
1348 | // of a normal or inlined functions. These will be | |||||
1349 | // parsed on their own as separate entities. | |||||
1350 | ||||||
1351 | if (depth > 0) | |||||
1352 | break; | |||||
1353 | ||||||
1354 | block = parent_block; | |||||
1355 | } | |||||
1356 | else | |||||
1357 | { | |||||
1358 | BlockSP block_sp(new Block (MakeUserID(die->GetOffset()))); | |||||
1359 | parent_block->AddChild(block_sp); | |||||
1360 | block = block_sp.get(); | |||||
1361 | } | |||||
1362 | DWARFDebugRanges::RangeList ranges; | |||||
1363 | const char *name = NULL__null; | |||||
1364 | const char *mangled_name = NULL__null; | |||||
1365 | ||||||
1366 | int decl_file = 0; | |||||
1367 | int decl_line = 0; | |||||
1368 | int decl_column = 0; | |||||
1369 | int call_file = 0; | |||||
1370 | int call_line = 0; | |||||
1371 | int call_column = 0; | |||||
1372 | if (die->GetDIENamesAndRanges (this, | |||||
1373 | dwarf_cu, | |||||
1374 | name, | |||||
1375 | mangled_name, | |||||
1376 | ranges, | |||||
1377 | decl_file, decl_line, decl_column, | |||||
1378 | call_file, call_line, call_column)) | |||||
1379 | { | |||||
1380 | if (tag == DW_TAG_subprogram) | |||||
1381 | { | |||||
1382 | assert (subprogram_low_pc == LLDB_INVALID_ADDRESS)((subprogram_low_pc == (18446744073709551615UL)) ? static_cast <void> (0) : __assert_fail ("subprogram_low_pc == (18446744073709551615UL)" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1382, __PRETTY_FUNCTION__)); | |||||
1383 | subprogram_low_pc = ranges.GetMinRangeBase(0); | |||||
1384 | } | |||||
1385 | else if (tag == DW_TAG_inlined_subroutine) | |||||
1386 | { | |||||
1387 | // We get called here for inlined subroutines in two ways. | |||||
1388 | // The first time is when we are making the Function object | |||||
1389 | // for this inlined concrete instance. Since we're creating a top level block at | |||||
1390 | // here, the subprogram_low_pc will be LLDB_INVALID_ADDRESS. So we need to | |||||
1391 | // adjust the containing address. | |||||
1392 | // The second time is when we are parsing the blocks inside the function that contains | |||||
1393 | // the inlined concrete instance. Since these will be blocks inside the containing "real" | |||||
1394 | // function the offset will be for that function. | |||||
1395 | if (subprogram_low_pc == LLDB_INVALID_ADDRESS(18446744073709551615UL)) | |||||
1396 | { | |||||
1397 | subprogram_low_pc = ranges.GetMinRangeBase(0); | |||||
1398 | } | |||||
1399 | } | |||||
1400 | ||||||
1401 | AddRangesToBlock (*block, ranges, subprogram_low_pc); | |||||
1402 | ||||||
1403 | if (tag != DW_TAG_subprogram && (name != NULL__null || mangled_name != NULL__null)) | |||||
1404 | { | |||||
1405 | std::unique_ptr<Declaration> decl_ap; | |||||
1406 | if (decl_file != 0 || decl_line != 0 || decl_column != 0) | |||||
1407 | decl_ap.reset(new Declaration(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(decl_file), | |||||
1408 | decl_line, decl_column)); | |||||
1409 | ||||||
1410 | std::unique_ptr<Declaration> call_ap; | |||||
1411 | if (call_file != 0 || call_line != 0 || call_column != 0) | |||||
1412 | call_ap.reset(new Declaration(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(call_file), | |||||
1413 | call_line, call_column)); | |||||
1414 | ||||||
1415 | block->SetInlinedFunctionInfo (name, mangled_name, decl_ap.get(), call_ap.get()); | |||||
1416 | } | |||||
1417 | ||||||
1418 | ++blocks_added; | |||||
1419 | ||||||
1420 | if (die->HasChildren()) | |||||
1421 | { | |||||
1422 | blocks_added += ParseFunctionBlocks (sc, | |||||
1423 | block, | |||||
1424 | dwarf_cu, | |||||
1425 | die->GetFirstChild(), | |||||
1426 | subprogram_low_pc, | |||||
1427 | depth + 1); | |||||
1428 | } | |||||
1429 | } | |||||
1430 | } | |||||
1431 | break; | |||||
1432 | default: | |||||
1433 | break; | |||||
1434 | } | |||||
1435 | ||||||
1436 | // Only parse siblings of the block if we are not at depth zero. A depth | |||||
1437 | // of zero indicates we are currently parsing the top level | |||||
1438 | // DW_TAG_subprogram DIE | |||||
1439 | ||||||
1440 | if (depth == 0) | |||||
1441 | die = NULL__null; | |||||
1442 | else | |||||
1443 | die = die->GetSibling(); | |||||
1444 | } | |||||
1445 | return blocks_added; | |||||
1446 | } | |||||
1447 | ||||||
1448 | bool | |||||
1449 | SymbolFileDWARF::ParseTemplateDIE (DWARFCompileUnit* dwarf_cu, | |||||
1450 | const DWARFDebugInfoEntry *die, | |||||
1451 | ClangASTContext::TemplateParameterInfos &template_param_infos) | |||||
1452 | { | |||||
1453 | const dw_tag_t tag = die->Tag(); | |||||
1454 | ||||||
1455 | switch (tag) | |||||
1456 | { | |||||
1457 | case DW_TAG_template_type_parameter: | |||||
1458 | case DW_TAG_template_value_parameter: | |||||
1459 | { | |||||
1460 | const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64()); | |||||
1461 | ||||||
1462 | DWARFDebugInfoEntry::Attributes attributes; | |||||
1463 | const size_t num_attributes = die->GetAttributes (this, | |||||
1464 | dwarf_cu, | |||||
1465 | fixed_form_sizes, | |||||
1466 | attributes); | |||||
1467 | const char *name = NULL__null; | |||||
1468 | Type *lldb_type = NULL__null; | |||||
1469 | ClangASTType clang_type; | |||||
1470 | uint64_t uval64 = 0; | |||||
1471 | bool uval64_valid = false; | |||||
1472 | if (num_attributes > 0) | |||||
1473 | { | |||||
1474 | DWARFFormValue form_value; | |||||
1475 | for (size_t i=0; i<num_attributes; ++i) | |||||
1476 | { | |||||
1477 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||||
1478 | ||||||
1479 | switch (attr) | |||||
1480 | { | |||||
1481 | case DW_AT_name: | |||||
1482 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||||
1483 | name = form_value.AsCString(&get_debug_str_data()); | |||||
1484 | break; | |||||
1485 | ||||||
1486 | case DW_AT_type: | |||||
1487 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||||
1488 | { | |||||
1489 | const dw_offset_t type_die_offset = form_value.Reference(dwarf_cu); | |||||
1490 | lldb_type = ResolveTypeUID(type_die_offset); | |||||
1491 | if (lldb_type) | |||||
1492 | clang_type = lldb_type->GetClangForwardType(); | |||||
1493 | } | |||||
1494 | break; | |||||
1495 | ||||||
1496 | case DW_AT_const_value: | |||||
1497 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||||
1498 | { | |||||
1499 | uval64_valid = true; | |||||
1500 | uval64 = form_value.Unsigned(); | |||||
1501 | } | |||||
1502 | break; | |||||
1503 | default: | |||||
1504 | break; | |||||
1505 | } | |||||
1506 | } | |||||
1507 | ||||||
1508 | clang::ASTContext *ast = GetClangASTContext().getASTContext(); | |||||
1509 | if (!clang_type) | |||||
1510 | clang_type = GetClangASTContext().GetBasicType(eBasicTypeVoid); | |||||
1511 | ||||||
1512 | if (clang_type) | |||||
1513 | { | |||||
1514 | bool is_signed = false; | |||||
1515 | if (name && name[0]) | |||||
1516 | template_param_infos.names.push_back(name); | |||||
1517 | else | |||||
1518 | template_param_infos.names.push_back(NULL__null); | |||||
1519 | ||||||
1520 | if (tag == DW_TAG_template_value_parameter && | |||||
1521 | lldb_type != NULL__null && | |||||
1522 | clang_type.IsIntegerType (is_signed) && | |||||
1523 | uval64_valid) | |||||
1524 | { | |||||
1525 | llvm::APInt apint (lldb_type->GetByteSize() * 8, uval64, is_signed); | |||||
1526 | template_param_infos.args.push_back (clang::TemplateArgument (*ast, | |||||
1527 | llvm::APSInt(apint), | |||||
1528 | clang_type.GetQualType())); | |||||
1529 | } | |||||
1530 | else | |||||
1531 | { | |||||
1532 | template_param_infos.args.push_back (clang::TemplateArgument (clang_type.GetQualType())); | |||||
1533 | } | |||||
1534 | } | |||||
1535 | else | |||||
1536 | { | |||||
1537 | return false; | |||||
1538 | } | |||||
1539 | ||||||
1540 | } | |||||
1541 | } | |||||
1542 | return true; | |||||
1543 | ||||||
1544 | default: | |||||
1545 | break; | |||||
1546 | } | |||||
1547 | return false; | |||||
1548 | } | |||||
1549 | ||||||
1550 | bool | |||||
1551 | SymbolFileDWARF::ParseTemplateParameterInfos (DWARFCompileUnit* dwarf_cu, | |||||
1552 | const DWARFDebugInfoEntry *parent_die, | |||||
1553 | ClangASTContext::TemplateParameterInfos &template_param_infos) | |||||
1554 | { | |||||
1555 | ||||||
1556 | if (parent_die == NULL__null) | |||||
1557 | return false; | |||||
1558 | ||||||
1559 | Args template_parameter_names; | |||||
1560 | for (const DWARFDebugInfoEntry *die = parent_die->GetFirstChild(); | |||||
1561 | die != NULL__null; | |||||
1562 | die = die->GetSibling()) | |||||
1563 | { | |||||
1564 | const dw_tag_t tag = die->Tag(); | |||||
1565 | ||||||
1566 | switch (tag) | |||||
1567 | { | |||||
1568 | case DW_TAG_template_type_parameter: | |||||
1569 | case DW_TAG_template_value_parameter: | |||||
1570 | ParseTemplateDIE (dwarf_cu, die, template_param_infos); | |||||
1571 | break; | |||||
1572 | ||||||
1573 | default: | |||||
1574 | break; | |||||
1575 | } | |||||
1576 | } | |||||
1577 | if (template_param_infos.args.empty()) | |||||
1578 | return false; | |||||
1579 | return template_param_infos.args.size() == template_param_infos.names.size(); | |||||
1580 | } | |||||
1581 | ||||||
1582 | clang::ClassTemplateDecl * | |||||
1583 | SymbolFileDWARF::ParseClassTemplateDecl (clang::DeclContext *decl_ctx, | |||||
1584 | lldb::AccessType access_type, | |||||
1585 | const char *parent_name, | |||||
1586 | int tag_decl_kind, | |||||
1587 | const ClangASTContext::TemplateParameterInfos &template_param_infos) | |||||
1588 | { | |||||
1589 | if (template_param_infos.IsValid()) | |||||
1590 | { | |||||
1591 | std::string template_basename(parent_name); | |||||
1592 | template_basename.erase (template_basename.find('<')); | |||||
1593 | ClangASTContext &ast = GetClangASTContext(); | |||||
1594 | ||||||
1595 | return ast.CreateClassTemplateDecl (decl_ctx, | |||||
1596 | access_type, | |||||
1597 | template_basename.c_str(), | |||||
1598 | tag_decl_kind, | |||||
1599 | template_param_infos); | |||||
1600 | } | |||||
1601 | return NULL__null; | |||||
1602 | } | |||||
1603 | ||||||
1604 | class SymbolFileDWARF::DelayedAddObjCClassProperty | |||||
1605 | { | |||||
1606 | public: | |||||
1607 | DelayedAddObjCClassProperty | |||||
1608 | ( | |||||
1609 | const ClangASTType &class_opaque_type, | |||||
1610 | const char *property_name, | |||||
1611 | const ClangASTType &property_opaque_type, // The property type is only required if you don't have an ivar decl | |||||
1612 | clang::ObjCIvarDecl *ivar_decl, | |||||
1613 | const char *property_setter_name, | |||||
1614 | const char *property_getter_name, | |||||
1615 | uint32_t property_attributes, | |||||
1616 | const ClangASTMetadata *metadata | |||||
1617 | ) : | |||||
1618 | m_class_opaque_type (class_opaque_type), | |||||
1619 | m_property_name (property_name), | |||||
1620 | m_property_opaque_type (property_opaque_type), | |||||
1621 | m_ivar_decl (ivar_decl), | |||||
1622 | m_property_setter_name (property_setter_name), | |||||
1623 | m_property_getter_name (property_getter_name), | |||||
1624 | m_property_attributes (property_attributes) | |||||
1625 | { | |||||
1626 | if (metadata != NULL__null) | |||||
1627 | { | |||||
1628 | m_metadata_ap.reset(new ClangASTMetadata()); | |||||
1629 | *m_metadata_ap = *metadata; | |||||
1630 | } | |||||
1631 | } | |||||
1632 | ||||||
1633 | DelayedAddObjCClassProperty (const DelayedAddObjCClassProperty &rhs) | |||||
1634 | { | |||||
1635 | *this = rhs; | |||||
1636 | } | |||||
1637 | ||||||
1638 | DelayedAddObjCClassProperty& operator= (const DelayedAddObjCClassProperty &rhs) | |||||
1639 | { | |||||
1640 | m_class_opaque_type = rhs.m_class_opaque_type; | |||||
1641 | m_property_name = rhs.m_property_name; | |||||
1642 | m_property_opaque_type = rhs.m_property_opaque_type; | |||||
1643 | m_ivar_decl = rhs.m_ivar_decl; | |||||
1644 | m_property_setter_name = rhs.m_property_setter_name; | |||||
1645 | m_property_getter_name = rhs.m_property_getter_name; | |||||
1646 | m_property_attributes = rhs.m_property_attributes; | |||||
1647 | ||||||
1648 | if (rhs.m_metadata_ap.get()) | |||||
1649 | { | |||||
1650 | m_metadata_ap.reset (new ClangASTMetadata()); | |||||
1651 | *m_metadata_ap = *rhs.m_metadata_ap; | |||||
1652 | } | |||||
1653 | return *this; | |||||
1654 | } | |||||
1655 | ||||||
1656 | bool | |||||
1657 | Finalize() | |||||
1658 | { | |||||
1659 | return m_class_opaque_type.AddObjCClassProperty (m_property_name, | |||||
1660 | m_property_opaque_type, | |||||
1661 | m_ivar_decl, | |||||
1662 | m_property_setter_name, | |||||
1663 | m_property_getter_name, | |||||
1664 | m_property_attributes, | |||||
1665 | m_metadata_ap.get()); | |||||
1666 | } | |||||
1667 | private: | |||||
1668 | ClangASTType m_class_opaque_type; | |||||
1669 | const char *m_property_name; | |||||
1670 | ClangASTType m_property_opaque_type; | |||||
1671 | clang::ObjCIvarDecl *m_ivar_decl; | |||||
1672 | const char *m_property_setter_name; | |||||
1673 | const char *m_property_getter_name; | |||||
1674 | uint32_t m_property_attributes; | |||||
1675 | std::unique_ptr<ClangASTMetadata> m_metadata_ap; | |||||
1676 | }; | |||||
1677 | ||||||
1678 | struct BitfieldInfo | |||||
1679 | { | |||||
1680 | uint64_t bit_size; | |||||
1681 | uint64_t bit_offset; | |||||
1682 | ||||||
1683 | BitfieldInfo () : | |||||
1684 | bit_size (LLDB_INVALID_ADDRESS(18446744073709551615UL)), | |||||
1685 | bit_offset (LLDB_INVALID_ADDRESS(18446744073709551615UL)) | |||||
1686 | { | |||||
1687 | } | |||||
1688 | ||||||
1689 | void | |||||
1690 | Clear() | |||||
1691 | { | |||||
1692 | bit_size = LLDB_INVALID_ADDRESS(18446744073709551615UL); | |||||
1693 | bit_offset = LLDB_INVALID_ADDRESS(18446744073709551615UL); | |||||
1694 | } | |||||
1695 | ||||||
1696 | bool IsValid () | |||||
1697 | { | |||||
1698 | return (bit_size != LLDB_INVALID_ADDRESS(18446744073709551615UL)) && | |||||
1699 | (bit_offset != LLDB_INVALID_ADDRESS(18446744073709551615UL)); | |||||
1700 | } | |||||
1701 | }; | |||||
1702 | ||||||
1703 | ||||||
1704 | bool | |||||
1705 | SymbolFileDWARF::ClassOrStructIsVirtual (DWARFCompileUnit* dwarf_cu, | |||||
1706 | const DWARFDebugInfoEntry *parent_die) | |||||
1707 | { | |||||
1708 | if (parent_die) | |||||
1709 | { | |||||
1710 | for (const DWARFDebugInfoEntry *die = parent_die->GetFirstChild(); die != NULL__null; die = die->GetSibling()) | |||||
1711 | { | |||||
1712 | dw_tag_t tag = die->Tag(); | |||||
1713 | bool check_virtuality = false; | |||||
1714 | switch (tag) | |||||
1715 | { | |||||
1716 | case DW_TAG_inheritance: | |||||
1717 | case DW_TAG_subprogram: | |||||
1718 | check_virtuality = true; | |||||
1719 | break; | |||||
1720 | default: | |||||
1721 | break; | |||||
1722 | } | |||||
1723 | if (check_virtuality) | |||||
1724 | { | |||||
1725 | if (die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_virtuality, 0) != 0) | |||||
1726 | return true; | |||||
1727 | } | |||||
1728 | } | |||||
1729 | } | |||||
1730 | return false; | |||||
1731 | } | |||||
1732 | ||||||
1733 | size_t | |||||
1734 | SymbolFileDWARF::ParseChildMembers | |||||
1735 | ( | |||||
1736 | const SymbolContext& sc, | |||||
1737 | DWARFCompileUnit* dwarf_cu, | |||||
1738 | const DWARFDebugInfoEntry *parent_die, | |||||
1739 | ClangASTType &class_clang_type, | |||||
1740 | const LanguageType class_language, | |||||
1741 | std::vector<clang::CXXBaseSpecifier *>& base_classes, | |||||
1742 | std::vector<int>& member_accessibilities, | |||||
1743 | DWARFDIECollection& member_function_dies, | |||||
1744 | DelayedPropertyList& delayed_properties, | |||||
1745 | AccessType& default_accessibility, | |||||
1746 | bool &is_a_class, | |||||
1747 | LayoutInfo &layout_info | |||||
1748 | ) | |||||
1749 | { | |||||
1750 | if (parent_die == NULL__null) | |||||
1751 | return 0; | |||||
1752 | ||||||
1753 | size_t count = 0; | |||||
1754 | const DWARFDebugInfoEntry *die; | |||||
1755 | const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64()); | |||||
1756 | uint32_t member_idx = 0; | |||||
1757 | BitfieldInfo last_field_info; | |||||
1758 | ModuleSP module = GetObjectFile()->GetModule(); | |||||
1759 | ||||||
1760 | for (die = parent_die->GetFirstChild(); die != NULL__null; die = die->GetSibling()) | |||||
1761 | { | |||||
1762 | dw_tag_t tag = die->Tag(); | |||||
1763 | ||||||
1764 | switch (tag) | |||||
1765 | { | |||||
1766 | case DW_TAG_member: | |||||
1767 | case DW_TAG_APPLE_property: | |||||
1768 | { | |||||
1769 | DWARFDebugInfoEntry::Attributes attributes; | |||||
1770 | const size_t num_attributes = die->GetAttributes (this, | |||||
1771 | dwarf_cu, | |||||
1772 | fixed_form_sizes, | |||||
1773 | attributes); | |||||
1774 | if (num_attributes > 0) | |||||
1775 | { | |||||
1776 | Declaration decl; | |||||
1777 | //DWARFExpression location; | |||||
1778 | const char *name = NULL__null; | |||||
1779 | const char *prop_name = NULL__null; | |||||
1780 | const char *prop_getter_name = NULL__null; | |||||
1781 | const char *prop_setter_name = NULL__null; | |||||
1782 | uint32_t prop_attributes = 0; | |||||
1783 | ||||||
1784 | ||||||
1785 | bool is_artificial = false; | |||||
1786 | lldb::user_id_t encoding_uid = LLDB_INVALID_UID(18446744073709551615UL); | |||||
1787 | AccessType accessibility = eAccessNone; | |||||
1788 | uint32_t member_byte_offset = UINT32_MAX(4294967295U); | |||||
1789 | size_t byte_size = 0; | |||||
1790 | size_t bit_offset = 0; | |||||
1791 | size_t bit_size = 0; | |||||
1792 | bool is_external = false; // On DW_TAG_members, this means the member is static | |||||
1793 | uint32_t i; | |||||
1794 | for (i=0; i<num_attributes && !is_artificial; ++i) | |||||
1795 | { | |||||
1796 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||||
1797 | DWARFFormValue form_value; | |||||
1798 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||||
1799 | { | |||||
1800 | switch (attr) | |||||
1801 | { | |||||
1802 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||||
1803 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||||
1804 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||||
1805 | case DW_AT_name: name = form_value.AsCString(&get_debug_str_data()); break; | |||||
1806 | case DW_AT_type: encoding_uid = form_value.Reference(dwarf_cu); break; | |||||
1807 | case DW_AT_bit_offset: bit_offset = form_value.Unsigned(); break; | |||||
1808 | case DW_AT_bit_size: bit_size = form_value.Unsigned(); break; | |||||
1809 | case DW_AT_byte_size: byte_size = form_value.Unsigned(); break; | |||||
1810 | case DW_AT_data_member_location: | |||||
1811 | if (form_value.BlockData()) | |||||
1812 | { | |||||
1813 | Value initialValue(0); | |||||
1814 | Value memberOffset(0); | |||||
1815 | const DWARFDataExtractor& debug_info_data = get_debug_info_data(); | |||||
1816 | uint32_t block_length = form_value.Unsigned(); | |||||
1817 | uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart(); | |||||
1818 | if (DWARFExpression::Evaluate(NULL__null, // ExecutionContext * | |||||
1819 | NULL__null, // ClangExpressionVariableList * | |||||
1820 | NULL__null, // ClangExpressionDeclMap * | |||||
1821 | NULL__null, // RegisterContext * | |||||
1822 | module, | |||||
1823 | debug_info_data, | |||||
1824 | block_offset, | |||||
1825 | block_length, | |||||
1826 | eRegisterKindDWARF, | |||||
1827 | &initialValue, | |||||
1828 | memberOffset, | |||||
1829 | NULL__null)) | |||||
1830 | { | |||||
1831 | member_byte_offset = memberOffset.ResolveValue(NULL__null).UInt(); | |||||
1832 | } | |||||
1833 | } | |||||
1834 | else | |||||
1835 | { | |||||
1836 | // With DWARF 3 and later, if the value is an integer constant, | |||||
1837 | // this form value is the offset in bytes from the beginning | |||||
1838 | // of the containing entity. | |||||
1839 | member_byte_offset = form_value.Unsigned(); | |||||
1840 | } | |||||
1841 | break; | |||||
1842 | ||||||
1843 | case DW_AT_accessibility: accessibility = DW_ACCESS_to_AccessType (form_value.Unsigned()); break; | |||||
1844 | case DW_AT_artificial: is_artificial = form_value.Boolean(); break; | |||||
1845 | case DW_AT_APPLE_property_name: prop_name = form_value.AsCString(&get_debug_str_data()); break; | |||||
1846 | case DW_AT_APPLE_property_getter: prop_getter_name = form_value.AsCString(&get_debug_str_data()); break; | |||||
1847 | case DW_AT_APPLE_property_setter: prop_setter_name = form_value.AsCString(&get_debug_str_data()); break; | |||||
1848 | case DW_AT_APPLE_property_attribute: prop_attributes = form_value.Unsigned(); break; | |||||
1849 | case DW_AT_external: is_external = form_value.Boolean(); break; | |||||
1850 | ||||||
1851 | default: | |||||
1852 | case DW_AT_declaration: | |||||
1853 | case DW_AT_description: | |||||
1854 | case DW_AT_mutable: | |||||
1855 | case DW_AT_visibility: | |||||
1856 | case DW_AT_sibling: | |||||
1857 | break; | |||||
1858 | } | |||||
1859 | } | |||||
1860 | } | |||||
1861 | ||||||
1862 | if (prop_name) | |||||
1863 | { | |||||
1864 | ConstString fixed_getter; | |||||
1865 | ConstString fixed_setter; | |||||
1866 | ||||||
1867 | // Check if the property getter/setter were provided as full | |||||
1868 | // names. We want basenames, so we extract them. | |||||
1869 | ||||||
1870 | if (prop_getter_name && prop_getter_name[0] == '-') | |||||
1871 | { | |||||
1872 | ObjCLanguageRuntime::MethodName prop_getter_method(prop_getter_name, true); | |||||
1873 | prop_getter_name = prop_getter_method.GetSelector().GetCString(); | |||||
1874 | } | |||||
1875 | ||||||
1876 | if (prop_setter_name && prop_setter_name[0] == '-') | |||||
1877 | { | |||||
1878 | ObjCLanguageRuntime::MethodName prop_setter_method(prop_setter_name, true); | |||||
1879 | prop_setter_name = prop_setter_method.GetSelector().GetCString(); | |||||
1880 | } | |||||
1881 | ||||||
1882 | // If the names haven't been provided, they need to be | |||||
1883 | // filled in. | |||||
1884 | ||||||
1885 | if (!prop_getter_name) | |||||
1886 | { | |||||
1887 | prop_getter_name = prop_name; | |||||
1888 | } | |||||
1889 | if (!prop_setter_name && prop_name[0] && !(prop_attributes & DW_APPLE_PROPERTY_readonly)) | |||||
1890 | { | |||||
1891 | StreamString ss; | |||||
1892 | ||||||
1893 | ss.Printf("set%c%s:", | |||||
1894 | toupper(prop_name[0]), | |||||
1895 | &prop_name[1]); | |||||
1896 | ||||||
1897 | fixed_setter.SetCString(ss.GetData()); | |||||
1898 | prop_setter_name = fixed_setter.GetCString(); | |||||
1899 | } | |||||
1900 | } | |||||
1901 | ||||||
1902 | // Clang has a DWARF generation bug where sometimes it | |||||
1903 | // represents fields that are references with bad byte size | |||||
1904 | // and bit size/offset information such as: | |||||
1905 | // | |||||
1906 | // DW_AT_byte_size( 0x00 ) | |||||
1907 | // DW_AT_bit_size( 0x40 ) | |||||
1908 | // DW_AT_bit_offset( 0xffffffffffffffc0 ) | |||||
1909 | // | |||||
1910 | // So check the bit offset to make sure it is sane, and if | |||||
1911 | // the values are not sane, remove them. If we don't do this | |||||
1912 | // then we will end up with a crash if we try to use this | |||||
1913 | // type in an expression when clang becomes unhappy with its | |||||
1914 | // recycled debug info. | |||||
1915 | ||||||
1916 | if (bit_offset > 128) | |||||
1917 | { | |||||
1918 | bit_size = 0; | |||||
1919 | bit_offset = 0; | |||||
1920 | } | |||||
1921 | ||||||
1922 | // FIXME: Make Clang ignore Objective-C accessibility for expressions | |||||
1923 | if (class_language == eLanguageTypeObjC || | |||||
1924 | class_language == eLanguageTypeObjC_plus_plus) | |||||
1925 | accessibility = eAccessNone; | |||||
1926 | ||||||
1927 | if (member_idx == 0 && !is_artificial && name && (strstr (name, "_vptr$") == name)) | |||||
1928 | { | |||||
1929 | // Not all compilers will mark the vtable pointer | |||||
1930 | // member as artificial (llvm-gcc). We can't have | |||||
1931 | // the virtual members in our classes otherwise it | |||||
1932 | // throws off all child offsets since we end up | |||||
1933 | // having and extra pointer sized member in our | |||||
1934 | // class layouts. | |||||
1935 | is_artificial = true; | |||||
1936 | } | |||||
1937 | ||||||
1938 | // Handle static members | |||||
1939 | if (is_external && member_byte_offset == UINT32_MAX(4294967295U)) | |||||
1940 | { | |||||
1941 | Type *var_type = ResolveTypeUID(encoding_uid); | |||||
1942 | ||||||
1943 | if (var_type) | |||||
1944 | { | |||||
1945 | if (accessibility == eAccessNone) | |||||
1946 | accessibility = eAccessPublic; | |||||
1947 | class_clang_type.AddVariableToRecordType (name, | |||||
1948 | var_type->GetClangLayoutType(), | |||||
1949 | accessibility); | |||||
1950 | } | |||||
1951 | break; | |||||
1952 | } | |||||
1953 | ||||||
1954 | if (is_artificial == false) | |||||
1955 | { | |||||
1956 | Type *member_type = ResolveTypeUID(encoding_uid); | |||||
1957 | ||||||
1958 | clang::FieldDecl *field_decl = NULL__null; | |||||
1959 | if (tag == DW_TAG_member) | |||||
1960 | { | |||||
1961 | if (member_type) | |||||
1962 | { | |||||
1963 | if (accessibility == eAccessNone) | |||||
1964 | accessibility = default_accessibility; | |||||
1965 | member_accessibilities.push_back(accessibility); | |||||
1966 | ||||||
1967 | uint64_t field_bit_offset = (member_byte_offset == UINT32_MAX(4294967295U) ? 0 : (member_byte_offset * 8)); | |||||
1968 | if (bit_size > 0) | |||||
1969 | { | |||||
1970 | ||||||
1971 | BitfieldInfo this_field_info; | |||||
1972 | this_field_info.bit_offset = field_bit_offset; | |||||
1973 | this_field_info.bit_size = bit_size; | |||||
1974 | ||||||
1975 | ///////////////////////////////////////////////////////////// | |||||
1976 | // How to locate a field given the DWARF debug information | |||||
1977 | // | |||||
1978 | // AT_byte_size indicates the size of the word in which the | |||||
1979 | // bit offset must be interpreted. | |||||
1980 | // | |||||
1981 | // AT_data_member_location indicates the byte offset of the | |||||
1982 | // word from the base address of the structure. | |||||
1983 | // | |||||
1984 | // AT_bit_offset indicates how many bits into the word | |||||
1985 | // (according to the host endianness) the low-order bit of | |||||
1986 | // the field starts. AT_bit_offset can be negative. | |||||
1987 | // | |||||
1988 | // AT_bit_size indicates the size of the field in bits. | |||||
1989 | ///////////////////////////////////////////////////////////// | |||||
1990 | ||||||
1991 | if (byte_size == 0) | |||||
1992 | byte_size = member_type->GetByteSize(); | |||||
1993 | ||||||
1994 | if (GetObjectFile()->GetByteOrder() == eByteOrderLittle) | |||||
1995 | { | |||||
1996 | this_field_info.bit_offset += byte_size * 8; | |||||
1997 | this_field_info.bit_offset -= (bit_offset + bit_size); | |||||
1998 | } | |||||
1999 | else | |||||
2000 | { | |||||
2001 | this_field_info.bit_offset += bit_offset; | |||||
2002 | } | |||||
2003 | ||||||
2004 | // Update the field bit offset we will report for layout | |||||
2005 | field_bit_offset = this_field_info.bit_offset; | |||||
2006 | ||||||
2007 | // If the member to be emitted did not start on a character boundary and there is | |||||
2008 | // empty space between the last field and this one, then we need to emit an | |||||
2009 | // anonymous member filling up the space up to its start. There are three cases | |||||
2010 | // here: | |||||
2011 | // | |||||
2012 | // 1 If the previous member ended on a character boundary, then we can emit an | |||||
2013 | // anonymous member starting at the most recent character boundary. | |||||
2014 | // | |||||
2015 | // 2 If the previous member did not end on a character boundary and the distance | |||||
2016 | // from the end of the previous member to the current member is less than a | |||||
2017 | // word width, then we can emit an anonymous member starting right after the | |||||
2018 | // previous member and right before this member. | |||||
2019 | // | |||||
2020 | // 3 If the previous member did not end on a character boundary and the distance | |||||
2021 | // from the end of the previous member to the current member is greater than | |||||
2022 | // or equal a word width, then we act as in Case 1. | |||||
2023 | ||||||
2024 | const uint64_t character_width = 8; | |||||
2025 | const uint64_t word_width = 32; | |||||
2026 | ||||||
2027 | // Objective-C has invalid DW_AT_bit_offset values in older versions | |||||
2028 | // of clang, so we have to be careful and only insert unnamed bitfields | |||||
2029 | // if we have a new enough clang. | |||||
2030 | bool detect_unnamed_bitfields = true; | |||||
2031 | ||||||
2032 | if (class_language == eLanguageTypeObjC || class_language == eLanguageTypeObjC_plus_plus) | |||||
2033 | detect_unnamed_bitfields = dwarf_cu->Supports_unnamed_objc_bitfields (); | |||||
2034 | ||||||
2035 | if (detect_unnamed_bitfields) | |||||
2036 | { | |||||
2037 | BitfieldInfo anon_field_info; | |||||
2038 | ||||||
2039 | if ((this_field_info.bit_offset % character_width) != 0) // not char aligned | |||||
2040 | { | |||||
2041 | uint64_t last_field_end = 0; | |||||
2042 | ||||||
2043 | if (last_field_info.IsValid()) | |||||
2044 | last_field_end = last_field_info.bit_offset + last_field_info.bit_size; | |||||
2045 | ||||||
2046 | if (this_field_info.bit_offset != last_field_end) | |||||
2047 | { | |||||
2048 | if (((last_field_end % character_width) == 0) || // case 1 | |||||
2049 | (this_field_info.bit_offset - last_field_end >= word_width)) // case 3 | |||||
2050 | { | |||||
2051 | anon_field_info.bit_size = this_field_info.bit_offset % character_width; | |||||
2052 | anon_field_info.bit_offset = this_field_info.bit_offset - anon_field_info.bit_size; | |||||
2053 | } | |||||
2054 | else // case 2 | |||||
2055 | { | |||||
2056 | anon_field_info.bit_size = this_field_info.bit_offset - last_field_end; | |||||
2057 | anon_field_info.bit_offset = last_field_end; | |||||
2058 | } | |||||
2059 | } | |||||
2060 | } | |||||
2061 | ||||||
2062 | if (anon_field_info.IsValid()) | |||||
2063 | { | |||||
2064 | clang::FieldDecl *unnamed_bitfield_decl = class_clang_type.AddFieldToRecordType (NULL__null, | |||||
2065 | GetClangASTContext().GetBuiltinTypeForEncodingAndBitSize(eEncodingSint, word_width), | |||||
2066 | accessibility, | |||||
2067 | anon_field_info.bit_size); | |||||
2068 | ||||||
2069 | layout_info.field_offsets.insert(std::make_pair(unnamed_bitfield_decl, anon_field_info.bit_offset)); | |||||
2070 | } | |||||
2071 | } | |||||
2072 | last_field_info = this_field_info; | |||||
2073 | } | |||||
2074 | else | |||||
2075 | { | |||||
2076 | last_field_info.Clear(); | |||||
2077 | } | |||||
2078 | ||||||
2079 | ClangASTType member_clang_type = member_type->GetClangLayoutType(); | |||||
2080 | ||||||
2081 | { | |||||
2082 | // Older versions of clang emit array[0] and array[1] in the same way (<rdar://problem/12566646>). | |||||
2083 | // If the current field is at the end of the structure, then there is definitely no room for extra | |||||
2084 | // elements and we override the type to array[0]. | |||||
2085 | ||||||
2086 | ClangASTType member_array_element_type; | |||||
2087 | uint64_t member_array_size; | |||||
2088 | bool member_array_is_incomplete; | |||||
2089 | ||||||
2090 | if (member_clang_type.IsArrayType(&member_array_element_type, | |||||
2091 | &member_array_size, | |||||
2092 | &member_array_is_incomplete) && | |||||
2093 | !member_array_is_incomplete) | |||||
2094 | { | |||||
2095 | uint64_t parent_byte_size = parent_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_byte_size, UINT64_MAX(18446744073709551615UL)); | |||||
2096 | ||||||
2097 | if (member_byte_offset >= parent_byte_size) | |||||
2098 | { | |||||
2099 | if (member_array_size != 1) | |||||
2100 | { | |||||
2101 | GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64"l" "x" ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64"l" "x" " which extends beyond the bounds of 0x%8.8" PRIx64"l" "x", | |||||
2102 | MakeUserID(die->GetOffset()), | |||||
2103 | name, | |||||
2104 | encoding_uid, | |||||
2105 | MakeUserID(parent_die->GetOffset())); | |||||
2106 | } | |||||
2107 | ||||||
2108 | member_clang_type = GetClangASTContext().CreateArrayType(member_array_element_type, 0, false); | |||||
2109 | } | |||||
2110 | } | |||||
2111 | } | |||||
2112 | ||||||
2113 | field_decl = class_clang_type.AddFieldToRecordType (name, | |||||
2114 | member_clang_type, | |||||
2115 | accessibility, | |||||
2116 | bit_size); | |||||
2117 | ||||||
2118 | GetClangASTContext().SetMetadataAsUserID (field_decl, MakeUserID(die->GetOffset())); | |||||
2119 | ||||||
2120 | layout_info.field_offsets.insert(std::make_pair(field_decl, field_bit_offset)); | |||||
2121 | ||||||
2122 | } | |||||
2123 | else | |||||
2124 | { | |||||
2125 | if (name) | |||||
2126 | GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64"l" "x" ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64"l" "x" " which was unable to be parsed", | |||||
2127 | MakeUserID(die->GetOffset()), | |||||
2128 | name, | |||||
2129 | encoding_uid); | |||||
2130 | else | |||||
2131 | GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64"l" "x" ": DW_TAG_member refers to type 0x%8.8" PRIx64"l" "x" " which was unable to be parsed", | |||||
2132 | MakeUserID(die->GetOffset()), | |||||
2133 | encoding_uid); | |||||
2134 | } | |||||
2135 | } | |||||
2136 | ||||||
2137 | if (prop_name != NULL__null) | |||||
2138 | { | |||||
2139 | clang::ObjCIvarDecl *ivar_decl = NULL__null; | |||||
2140 | ||||||
2141 | if (field_decl) | |||||
2142 | { | |||||
2143 | ivar_decl = clang::dyn_cast<clang::ObjCIvarDecl>(field_decl); | |||||
2144 | assert (ivar_decl != NULL)((ivar_decl != __null) ? static_cast<void> (0) : __assert_fail ("ivar_decl != __null", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 2144, __PRETTY_FUNCTION__)); | |||||
2145 | } | |||||
2146 | ||||||
2147 | ClangASTMetadata metadata; | |||||
2148 | metadata.SetUserID (MakeUserID(die->GetOffset())); | |||||
2149 | delayed_properties.push_back(DelayedAddObjCClassProperty(class_clang_type, | |||||
2150 | prop_name, | |||||
2151 | member_type->GetClangLayoutType(), | |||||
2152 | ivar_decl, | |||||
2153 | prop_setter_name, | |||||
2154 | prop_getter_name, | |||||
2155 | prop_attributes, | |||||
2156 | &metadata)); | |||||
2157 | ||||||
2158 | if (ivar_decl) | |||||
2159 | GetClangASTContext().SetMetadataAsUserID (ivar_decl, MakeUserID(die->GetOffset())); | |||||
2160 | } | |||||
2161 | } | |||||
2162 | } | |||||
2163 | ++member_idx; | |||||
2164 | } | |||||
2165 | break; | |||||
2166 | ||||||
2167 | case DW_TAG_subprogram: | |||||
2168 | // Let the type parsing code handle this one for us. | |||||
2169 | member_function_dies.Append (die); | |||||
2170 | break; | |||||
2171 | ||||||
2172 | case DW_TAG_inheritance: | |||||
2173 | { | |||||
2174 | is_a_class = true; | |||||
2175 | if (default_accessibility == eAccessNone) | |||||
2176 | default_accessibility = eAccessPrivate; | |||||
2177 | // TODO: implement DW_TAG_inheritance type parsing | |||||
2178 | DWARFDebugInfoEntry::Attributes attributes; | |||||
2179 | const size_t num_attributes = die->GetAttributes (this, | |||||
2180 | dwarf_cu, | |||||
2181 | fixed_form_sizes, | |||||
2182 | attributes); | |||||
2183 | if (num_attributes > 0) | |||||
2184 | { | |||||
2185 | Declaration decl; | |||||
2186 | DWARFExpression location; | |||||
2187 | lldb::user_id_t encoding_uid = LLDB_INVALID_UID(18446744073709551615UL); | |||||
2188 | AccessType accessibility = default_accessibility; | |||||
2189 | bool is_virtual = false; | |||||
2190 | bool is_base_of_class = true; | |||||
2191 | off_t member_byte_offset = 0; | |||||
2192 | uint32_t i; | |||||
2193 | for (i=0; i<num_attributes; ++i) | |||||
2194 | { | |||||
2195 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||||
2196 | DWARFFormValue form_value; | |||||
2197 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||||
2198 | { | |||||
2199 | switch (attr) | |||||
2200 | { | |||||
2201 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||||
2202 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||||
2203 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||||
2204 | case DW_AT_type: encoding_uid = form_value.Reference(dwarf_cu); break; | |||||
2205 | case DW_AT_data_member_location: | |||||
2206 | if (form_value.BlockData()) | |||||
2207 | { | |||||
2208 | Value initialValue(0); | |||||
2209 | Value memberOffset(0); | |||||
2210 | const DWARFDataExtractor& debug_info_data = get_debug_info_data(); | |||||
2211 | uint32_t block_length = form_value.Unsigned(); | |||||
2212 | uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart(); | |||||
2213 | if (DWARFExpression::Evaluate (NULL__null, | |||||
2214 | NULL__null, | |||||
2215 | NULL__null, | |||||
2216 | NULL__null, | |||||
2217 | module, | |||||
2218 | debug_info_data, | |||||
2219 | block_offset, | |||||
2220 | block_length, | |||||
2221 | eRegisterKindDWARF, | |||||
2222 | &initialValue, | |||||
2223 | memberOffset, | |||||
2224 | NULL__null)) | |||||
2225 | { | |||||
2226 | member_byte_offset = memberOffset.ResolveValue(NULL__null).UInt(); | |||||
2227 | } | |||||
2228 | } | |||||
2229 | else | |||||
2230 | { | |||||
2231 | // With DWARF 3 and later, if the value is an integer constant, | |||||
2232 | // this form value is the offset in bytes from the beginning | |||||
2233 | // of the containing entity. | |||||
2234 | member_byte_offset = form_value.Unsigned(); | |||||
2235 | } | |||||
2236 | break; | |||||
2237 | ||||||
2238 | case DW_AT_accessibility: | |||||
2239 | accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); | |||||
2240 | break; | |||||
2241 | ||||||
2242 | case DW_AT_virtuality: | |||||
2243 | is_virtual = form_value.Boolean(); | |||||
2244 | break; | |||||
2245 | ||||||
2246 | case DW_AT_sibling: | |||||
2247 | break; | |||||
2248 | ||||||
2249 | default: | |||||
2250 | break; | |||||
2251 | } | |||||
2252 | } | |||||
2253 | } | |||||
2254 | ||||||
2255 | Type *base_class_type = ResolveTypeUID(encoding_uid); | |||||
2256 | assert(base_class_type)((base_class_type) ? static_cast<void> (0) : __assert_fail ("base_class_type", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 2256, __PRETTY_FUNCTION__)); | |||||
2257 | ||||||
2258 | ClangASTType base_class_clang_type = base_class_type->GetClangFullType(); | |||||
2259 | assert (base_class_clang_type)((base_class_clang_type) ? static_cast<void> (0) : __assert_fail ("base_class_clang_type", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 2259, __PRETTY_FUNCTION__)); | |||||
2260 | if (class_language == eLanguageTypeObjC) | |||||
2261 | { | |||||
2262 | class_clang_type.SetObjCSuperClass(base_class_clang_type); | |||||
2263 | } | |||||
2264 | else | |||||
2265 | { | |||||
2266 | base_classes.push_back (base_class_clang_type.CreateBaseClassSpecifier (accessibility, | |||||
2267 | is_virtual, | |||||
2268 | is_base_of_class)); | |||||
2269 | ||||||
2270 | if (is_virtual) | |||||
2271 | { | |||||
2272 | // Do not specify any offset for virtual inheritance. The DWARF produced by clang doesn't | |||||
2273 | // give us a constant offset, but gives us a DWARF expressions that requires an actual object | |||||
2274 | // in memory. the DW_AT_data_member_location for a virtual base class looks like: | |||||
2275 | // DW_AT_data_member_location( DW_OP_dup, DW_OP_deref, DW_OP_constu(0x00000018), DW_OP_minus, DW_OP_deref, DW_OP_plus ) | |||||
2276 | // Given this, there is really no valid response we can give to clang for virtual base | |||||
2277 | // class offsets, and this should eventually be removed from LayoutRecordType() in the external | |||||
2278 | // AST source in clang. | |||||
2279 | } | |||||
2280 | else | |||||
2281 | { | |||||
2282 | layout_info.base_offsets.insert(std::make_pair(base_class_clang_type.GetAsCXXRecordDecl(), | |||||
2283 | clang::CharUnits::fromQuantity(member_byte_offset))); | |||||
2284 | } | |||||
2285 | } | |||||
2286 | } | |||||
2287 | } | |||||
2288 | break; | |||||
2289 | ||||||
2290 | default: | |||||
2291 | break; | |||||
2292 | } | |||||
2293 | } | |||||
2294 | ||||||
2295 | return count; | |||||
2296 | } | |||||
2297 | ||||||
2298 | ||||||
2299 | clang::DeclContext* | |||||
2300 | SymbolFileDWARF::GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid) | |||||
2301 | { | |||||
2302 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
2303 | if (debug_info && UserIDMatches(type_uid)) | |||||
2304 | { | |||||
2305 | DWARFCompileUnitSP cu_sp; | |||||
2306 | const DWARFDebugInfoEntry* die = debug_info->GetDIEPtr(type_uid, &cu_sp); | |||||
2307 | if (die) | |||||
2308 | return GetClangDeclContextContainingDIE (cu_sp.get(), die, NULL__null); | |||||
2309 | } | |||||
2310 | return NULL__null; | |||||
2311 | } | |||||
2312 | ||||||
2313 | clang::DeclContext* | |||||
2314 | SymbolFileDWARF::GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid) | |||||
2315 | { | |||||
2316 | if (UserIDMatches(type_uid)) | |||||
2317 | return GetClangDeclContextForDIEOffset (sc, type_uid); | |||||
2318 | return NULL__null; | |||||
2319 | } | |||||
2320 | ||||||
2321 | Type* | |||||
2322 | SymbolFileDWARF::ResolveTypeUID (lldb::user_id_t type_uid) | |||||
2323 | { | |||||
2324 | if (UserIDMatches(type_uid)) | |||||
2325 | { | |||||
2326 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
2327 | if (debug_info) | |||||
2328 | { | |||||
2329 | DWARFCompileUnitSP cu_sp; | |||||
2330 | const DWARFDebugInfoEntry* type_die = debug_info->GetDIEPtr(type_uid, &cu_sp); | |||||
2331 | const bool assert_not_being_parsed = true; | |||||
2332 | return ResolveTypeUID (cu_sp.get(), type_die, assert_not_being_parsed); | |||||
2333 | } | |||||
2334 | } | |||||
2335 | return NULL__null; | |||||
2336 | } | |||||
2337 | ||||||
2338 | Type* | |||||
2339 | SymbolFileDWARF::ResolveTypeUID (DWARFCompileUnit* cu, const DWARFDebugInfoEntry* die, bool assert_not_being_parsed) | |||||
2340 | { | |||||
2341 | if (die != NULL__null) | |||||
2342 | { | |||||
2343 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO(1u << 1))); | |||||
2344 | if (log) | |||||
2345 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
2346 | "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s'", | |||||
2347 | die->GetOffset(), | |||||
2348 | DW_TAG_value_to_name(die->Tag()), | |||||
2349 | die->GetName(this, cu)); | |||||
2350 | ||||||
2351 | // We might be coming in in the middle of a type tree (a class | |||||
2352 | // withing a class, an enum within a class), so parse any needed | |||||
2353 | // parent DIEs before we get to this one... | |||||
2354 | const DWARFDebugInfoEntry *decl_ctx_die = GetDeclContextDIEContainingDIE (cu, die); | |||||
2355 | switch (decl_ctx_die->Tag()) | |||||
2356 | { | |||||
2357 | case DW_TAG_structure_type: | |||||
2358 | case DW_TAG_union_type: | |||||
2359 | case DW_TAG_class_type: | |||||
2360 | { | |||||
2361 | // Get the type, which could be a forward declaration | |||||
2362 | if (log) | |||||
2363 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
2364 | "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s' resolve parent forward type for 0x%8.8x", | |||||
2365 | die->GetOffset(), | |||||
2366 | DW_TAG_value_to_name(die->Tag()), | |||||
2367 | die->GetName(this, cu), | |||||
2368 | decl_ctx_die->GetOffset()); | |||||
2369 | // | |||||
2370 | // Type *parent_type = ResolveTypeUID (cu, decl_ctx_die, assert_not_being_parsed); | |||||
2371 | // if (child_requires_parent_class_union_or_struct_to_be_completed(die->Tag())) | |||||
2372 | // { | |||||
2373 | // if (log) | |||||
2374 | // GetObjectFile()->GetModule()->LogMessage (log, | |||||
2375 | // "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s' resolve parent full type for 0x%8.8x since die is a function", | |||||
2376 | // die->GetOffset(), | |||||
2377 | // DW_TAG_value_to_name(die->Tag()), | |||||
2378 | // die->GetName(this, cu), | |||||
2379 | // decl_ctx_die->GetOffset()); | |||||
2380 | // // Ask the type to complete itself if it already hasn't since if we | |||||
2381 | // // want a function (method or static) from a class, the class must | |||||
2382 | // // create itself and add it's own methods and class functions. | |||||
2383 | // if (parent_type) | |||||
2384 | // parent_type->GetClangFullType(); | |||||
2385 | // } | |||||
2386 | } | |||||
2387 | break; | |||||
2388 | ||||||
2389 | default: | |||||
2390 | break; | |||||
2391 | } | |||||
2392 | return ResolveType (cu, die); | |||||
2393 | } | |||||
2394 | return NULL__null; | |||||
2395 | } | |||||
2396 | ||||||
2397 | // This function is used when SymbolFileDWARFDebugMap owns a bunch of | |||||
2398 | // SymbolFileDWARF objects to detect if this DWARF file is the one that | |||||
2399 | // can resolve a clang_type. | |||||
2400 | bool | |||||
2401 | SymbolFileDWARF::HasForwardDeclForClangType (const ClangASTType &clang_type) | |||||
2402 | { | |||||
2403 | ClangASTType clang_type_no_qualifiers = clang_type.RemoveFastQualifiers(); | |||||
2404 | const DWARFDebugInfoEntry* die = m_forward_decl_clang_type_to_die.lookup (clang_type_no_qualifiers.GetOpaqueQualType()); | |||||
2405 | return die != NULL__null; | |||||
2406 | } | |||||
2407 | ||||||
2408 | ||||||
2409 | bool | |||||
2410 | SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (ClangASTType &clang_type) | |||||
2411 | { | |||||
2412 | // We have a struct/union/class/enum that needs to be fully resolved. | |||||
2413 | ClangASTType clang_type_no_qualifiers = clang_type.RemoveFastQualifiers(); | |||||
2414 | const DWARFDebugInfoEntry* die = m_forward_decl_clang_type_to_die.lookup (clang_type_no_qualifiers.GetOpaqueQualType()); | |||||
2415 | if (die == NULL__null) | |||||
2416 | { | |||||
2417 | // We have already resolved this type... | |||||
2418 | return true; | |||||
2419 | } | |||||
2420 | // Once we start resolving this type, remove it from the forward declaration | |||||
2421 | // map in case anyone child members or other types require this type to get resolved. | |||||
2422 | // The type will get resolved when all of the calls to SymbolFileDWARF::ResolveClangOpaqueTypeDefinition | |||||
2423 | // are done. | |||||
2424 | m_forward_decl_clang_type_to_die.erase (clang_type_no_qualifiers.GetOpaqueQualType()); | |||||
2425 | ||||||
2426 | // Disable external storage for this type so we don't get anymore | |||||
2427 | // clang::ExternalASTSource queries for this type. | |||||
2428 | clang_type.SetHasExternalStorage (false); | |||||
2429 | ||||||
2430 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
2431 | ||||||
2432 | DWARFCompileUnit *dwarf_cu = debug_info->GetCompileUnitContainingDIE (die->GetOffset()).get(); | |||||
2433 | Type *type = m_die_to_type.lookup (die); | |||||
2434 | ||||||
2435 | const dw_tag_t tag = die->Tag(); | |||||
2436 | ||||||
2437 | Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO(1u << 1)|DWARF_LOG_TYPE_COMPLETION(1u << 7))); | |||||
2438 | if (log) | |||||
2439 | GetObjectFile()->GetModule()->LogMessageVerboseBacktrace (log, | |||||
2440 | "0x%8.8" PRIx64"l" "x" ": %s '%s' resolving forward declaration...", | |||||
2441 | MakeUserID(die->GetOffset()), | |||||
2442 | DW_TAG_value_to_name(tag), | |||||
2443 | type->GetName().AsCString()); | |||||
2444 | assert (clang_type)((clang_type) ? static_cast<void> (0) : __assert_fail ( "clang_type", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 2444, __PRETTY_FUNCTION__)); | |||||
2445 | DWARFDebugInfoEntry::Attributes attributes; | |||||
2446 | ||||||
2447 | switch (tag) | |||||
2448 | { | |||||
2449 | case DW_TAG_structure_type: | |||||
2450 | case DW_TAG_union_type: | |||||
2451 | case DW_TAG_class_type: | |||||
2452 | { | |||||
2453 | LayoutInfo layout_info; | |||||
2454 | ||||||
2455 | { | |||||
2456 | if (die->HasChildren()) | |||||
2457 | { | |||||
2458 | LanguageType class_language = eLanguageTypeUnknown; | |||||
2459 | if (clang_type.IsObjCObjectOrInterfaceType()) | |||||
2460 | { | |||||
2461 | class_language = eLanguageTypeObjC; | |||||
2462 | // For objective C we don't start the definition when | |||||
2463 | // the class is created. | |||||
2464 | clang_type.StartTagDeclarationDefinition (); | |||||
2465 | } | |||||
2466 | ||||||
2467 | int tag_decl_kind = -1; | |||||
2468 | AccessType default_accessibility = eAccessNone; | |||||
2469 | if (tag == DW_TAG_structure_type) | |||||
2470 | { | |||||
2471 | tag_decl_kind = clang::TTK_Struct; | |||||
2472 | default_accessibility = eAccessPublic; | |||||
2473 | } | |||||
2474 | else if (tag == DW_TAG_union_type) | |||||
2475 | { | |||||
2476 | tag_decl_kind = clang::TTK_Union; | |||||
2477 | default_accessibility = eAccessPublic; | |||||
2478 | } | |||||
2479 | else if (tag == DW_TAG_class_type) | |||||
2480 | { | |||||
2481 | tag_decl_kind = clang::TTK_Class; | |||||
2482 | default_accessibility = eAccessPrivate; | |||||
2483 | } | |||||
2484 | ||||||
2485 | SymbolContext sc(GetCompUnitForDWARFCompUnit(dwarf_cu)); | |||||
2486 | std::vector<clang::CXXBaseSpecifier *> base_classes; | |||||
2487 | std::vector<int> member_accessibilities; | |||||
2488 | bool is_a_class = false; | |||||
2489 | // Parse members and base classes first | |||||
2490 | DWARFDIECollection member_function_dies; | |||||
2491 | ||||||
2492 | DelayedPropertyList delayed_properties; | |||||
2493 | ParseChildMembers (sc, | |||||
2494 | dwarf_cu, | |||||
2495 | die, | |||||
2496 | clang_type, | |||||
2497 | class_language, | |||||
2498 | base_classes, | |||||
2499 | member_accessibilities, | |||||
2500 | member_function_dies, | |||||
2501 | delayed_properties, | |||||
2502 | default_accessibility, | |||||
2503 | is_a_class, | |||||
2504 | layout_info); | |||||
2505 | ||||||
2506 | // Now parse any methods if there were any... | |||||
2507 | size_t num_functions = member_function_dies.Size(); | |||||
2508 | if (num_functions > 0) | |||||
2509 | { | |||||
2510 | for (size_t i=0; i<num_functions; ++i) | |||||
2511 | { | |||||
2512 | ResolveType(dwarf_cu, member_function_dies.GetDIEPtrAtIndex(i)); | |||||
2513 | } | |||||
2514 | } | |||||
2515 | ||||||
2516 | if (class_language == eLanguageTypeObjC) | |||||
2517 | { | |||||
2518 | ConstString class_name (clang_type.GetTypeName()); | |||||
2519 | if (class_name) | |||||
2520 | { | |||||
2521 | DIEArray method_die_offsets; | |||||
2522 | if (m_using_apple_tables) | |||||
2523 | { | |||||
2524 | if (m_apple_objc_ap.get()) | |||||
2525 | m_apple_objc_ap->FindByName(class_name.GetCString(), method_die_offsets); | |||||
2526 | } | |||||
2527 | else | |||||
2528 | { | |||||
2529 | if (!m_indexed) | |||||
2530 | Index (); | |||||
2531 | ||||||
2532 | m_objc_class_selectors_index.Find (class_name, method_die_offsets); | |||||
2533 | } | |||||
2534 | ||||||
2535 | if (!method_die_offsets.empty()) | |||||
2536 | { | |||||
2537 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
2538 | ||||||
2539 | DWARFCompileUnit* method_cu = NULL__null; | |||||
2540 | const size_t num_matches = method_die_offsets.size(); | |||||
2541 | for (size_t i=0; i<num_matches; ++i) | |||||
2542 | { | |||||
2543 | const dw_offset_t die_offset = method_die_offsets[i]; | |||||
2544 | DWARFDebugInfoEntry *method_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &method_cu); | |||||
2545 | ||||||
2546 | if (method_die) | |||||
2547 | ResolveType (method_cu, method_die); | |||||
2548 | else | |||||
2549 | { | |||||
2550 | if (m_using_apple_tables) | |||||
2551 | { | |||||
2552 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_objc accelerator table had bad die 0x%8.8x for '%s')\n", | |||||
2553 | die_offset, class_name.GetCString()); | |||||
2554 | } | |||||
2555 | } | |||||
2556 | } | |||||
2557 | } | |||||
2558 | ||||||
2559 | for (DelayedPropertyList::iterator pi = delayed_properties.begin(), pe = delayed_properties.end(); | |||||
2560 | pi != pe; | |||||
2561 | ++pi) | |||||
2562 | pi->Finalize(); | |||||
2563 | } | |||||
2564 | } | |||||
2565 | ||||||
2566 | // If we have a DW_TAG_structure_type instead of a DW_TAG_class_type we | |||||
2567 | // need to tell the clang type it is actually a class. | |||||
2568 | if (class_language != eLanguageTypeObjC) | |||||
2569 | { | |||||
2570 | if (is_a_class && tag_decl_kind != clang::TTK_Class) | |||||
2571 | clang_type.SetTagTypeKind (clang::TTK_Class); | |||||
2572 | } | |||||
2573 | ||||||
2574 | // Since DW_TAG_structure_type gets used for both classes | |||||
2575 | // and structures, we may need to set any DW_TAG_member | |||||
2576 | // fields to have a "private" access if none was specified. | |||||
2577 | // When we parsed the child members we tracked that actual | |||||
2578 | // accessibility value for each DW_TAG_member in the | |||||
2579 | // "member_accessibilities" array. If the value for the | |||||
2580 | // member is zero, then it was set to the "default_accessibility" | |||||
2581 | // which for structs was "public". Below we correct this | |||||
2582 | // by setting any fields to "private" that weren't correctly | |||||
2583 | // set. | |||||
2584 | if (is_a_class && !member_accessibilities.empty()) | |||||
2585 | { | |||||
2586 | // This is a class and all members that didn't have | |||||
2587 | // their access specified are private. | |||||
2588 | clang_type.SetDefaultAccessForRecordFields (eAccessPrivate, | |||||
2589 | &member_accessibilities.front(), | |||||
2590 | member_accessibilities.size()); | |||||
2591 | } | |||||
2592 | ||||||
2593 | if (!base_classes.empty()) | |||||
2594 | { | |||||
2595 | // Make sure all base classes refer to complete types and not | |||||
2596 | // forward declarations. If we don't do this, clang will crash | |||||
2597 | // with an assertion in the call to clang_type.SetBaseClassesForClassType() | |||||
2598 | bool base_class_error = false; | |||||
2599 | for (auto &base_class : base_classes) | |||||
2600 | { | |||||
2601 | clang::TypeSourceInfo *type_source_info = base_class->getTypeSourceInfo(); | |||||
2602 | if (type_source_info) | |||||
2603 | { | |||||
2604 | ClangASTType base_class_type (GetClangASTContext().getASTContext(), type_source_info->getType()); | |||||
2605 | if (base_class_type.GetCompleteType() == false) | |||||
2606 | { | |||||
2607 | if (!base_class_error) | |||||
2608 | { | |||||
2609 | GetObjectFile()->GetModule()->ReportError ("DWARF DIE at 0x%8.8x for class '%s' has a base class '%s' that is a forward declaration, not a complete definition.\nPlease file a bug against the compiler and include the preprocessed output for %s", | |||||
2610 | die->GetOffset(), | |||||
2611 | die->GetName(this, dwarf_cu), | |||||
2612 | base_class_type.GetTypeName().GetCString(), | |||||
2613 | sc.comp_unit ? sc.comp_unit->GetPath().c_str() : "the source file"); | |||||
2614 | } | |||||
2615 | // We have no choice other than to pretend that the base class | |||||
2616 | // is complete. If we don't do this, clang will crash when we | |||||
2617 | // call setBases() inside of "clang_type.SetBaseClassesForClassType()" | |||||
2618 | // below. Since we provide layout assistance, all ivars in this | |||||
2619 | // class and other classes will be fine, this is the best we can do | |||||
2620 | // short of crashing. | |||||
2621 | base_class_type.StartTagDeclarationDefinition (); | |||||
2622 | base_class_type.CompleteTagDeclarationDefinition (); | |||||
2623 | } | |||||
2624 | } | |||||
2625 | } | |||||
2626 | clang_type.SetBaseClassesForClassType (&base_classes.front(), | |||||
2627 | base_classes.size()); | |||||
2628 | ||||||
2629 | // Clang will copy each CXXBaseSpecifier in "base_classes" | |||||
2630 | // so we have to free them all. | |||||
2631 | ClangASTType::DeleteBaseClassSpecifiers (&base_classes.front(), | |||||
2632 | base_classes.size()); | |||||
2633 | } | |||||
2634 | } | |||||
2635 | } | |||||
2636 | ||||||
2637 | clang_type.BuildIndirectFields (); | |||||
2638 | clang_type.CompleteTagDeclarationDefinition (); | |||||
2639 | ||||||
2640 | if (!layout_info.field_offsets.empty() || | |||||
2641 | !layout_info.base_offsets.empty() || | |||||
2642 | !layout_info.vbase_offsets.empty() ) | |||||
2643 | { | |||||
2644 | if (type) | |||||
2645 | layout_info.bit_size = type->GetByteSize() * 8; | |||||
2646 | if (layout_info.bit_size == 0) | |||||
2647 | layout_info.bit_size = die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_byte_size, 0) * 8; | |||||
2648 | ||||||
2649 | clang::CXXRecordDecl *record_decl = clang_type.GetAsCXXRecordDecl(); | |||||
2650 | if (record_decl) | |||||
2651 | { | |||||
2652 | if (log) | |||||
2653 | { | |||||
2654 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
2655 | "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) caching layout info for record_decl = %p, bit_size = %" PRIu64"l" "u" ", alignment = %" PRIu64"l" "u" ", field_offsets[%u], base_offsets[%u], vbase_offsets[%u])", | |||||
2656 | static_cast<void*>(clang_type.GetOpaqueQualType()), | |||||
2657 | static_cast<void*>(record_decl), | |||||
2658 | layout_info.bit_size, | |||||
2659 | layout_info.alignment, | |||||
2660 | static_cast<uint32_t>(layout_info.field_offsets.size()), | |||||
2661 | static_cast<uint32_t>(layout_info.base_offsets.size()), | |||||
2662 | static_cast<uint32_t>(layout_info.vbase_offsets.size())); | |||||
2663 | ||||||
2664 | uint32_t idx; | |||||
2665 | { | |||||
2666 | llvm::DenseMap <const clang::FieldDecl *, uint64_t>::const_iterator pos, end = layout_info.field_offsets.end(); | |||||
2667 | for (idx = 0, pos = layout_info.field_offsets.begin(); pos != end; ++pos, ++idx) | |||||
2668 | { | |||||
2669 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
2670 | "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) field[%u] = { bit_offset=%u, name='%s' }", | |||||
2671 | static_cast<void*>(clang_type.GetOpaqueQualType()), | |||||
2672 | idx, | |||||
2673 | static_cast<uint32_t>(pos->second), | |||||
2674 | pos->first->getNameAsString().c_str()); | |||||
2675 | } | |||||
2676 | } | |||||
2677 | ||||||
2678 | { | |||||
2679 | llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits>::const_iterator base_pos, base_end = layout_info.base_offsets.end(); | |||||
2680 | for (idx = 0, base_pos = layout_info.base_offsets.begin(); base_pos != base_end; ++base_pos, ++idx) | |||||
2681 | { | |||||
2682 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
2683 | "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) base[%u] = { byte_offset=%u, name='%s' }", | |||||
2684 | clang_type.GetOpaqueQualType(), | |||||
2685 | idx, | |||||
2686 | (uint32_t)base_pos->second.getQuantity(), | |||||
2687 | base_pos->first->getNameAsString().c_str()); | |||||
2688 | } | |||||
2689 | } | |||||
2690 | { | |||||
2691 | llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits>::const_iterator vbase_pos, vbase_end = layout_info.vbase_offsets.end(); | |||||
2692 | for (idx = 0, vbase_pos = layout_info.vbase_offsets.begin(); vbase_pos != vbase_end; ++vbase_pos, ++idx) | |||||
2693 | { | |||||
2694 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
2695 | "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) vbase[%u] = { byte_offset=%u, name='%s' }", | |||||
2696 | static_cast<void*>(clang_type.GetOpaqueQualType()), | |||||
2697 | idx, | |||||
2698 | static_cast<uint32_t>(vbase_pos->second.getQuantity()), | |||||
2699 | vbase_pos->first->getNameAsString().c_str()); | |||||
2700 | } | |||||
2701 | } | |||||
2702 | } | |||||
2703 | m_record_decl_to_layout_map.insert(std::make_pair(record_decl, layout_info)); | |||||
2704 | } | |||||
2705 | } | |||||
2706 | } | |||||
2707 | ||||||
2708 | return (bool)clang_type; | |||||
2709 | ||||||
2710 | case DW_TAG_enumeration_type: | |||||
2711 | clang_type.StartTagDeclarationDefinition (); | |||||
2712 | if (die->HasChildren()) | |||||
2713 | { | |||||
2714 | SymbolContext sc(GetCompUnitForDWARFCompUnit(dwarf_cu)); | |||||
2715 | bool is_signed = false; | |||||
2716 | clang_type.IsIntegerType(is_signed); | |||||
2717 | ParseChildEnumerators(sc, clang_type, is_signed, type->GetByteSize(), dwarf_cu, die); | |||||
2718 | } | |||||
2719 | clang_type.CompleteTagDeclarationDefinition (); | |||||
2720 | return (bool)clang_type; | |||||
2721 | ||||||
2722 | default: | |||||
2723 | assert(false && "not a forward clang type decl!")((false && "not a forward clang type decl!") ? static_cast <void> (0) : __assert_fail ("false && \"not a forward clang type decl!\"" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 2723, __PRETTY_FUNCTION__)); | |||||
2724 | break; | |||||
2725 | } | |||||
2726 | return false; | |||||
2727 | } | |||||
2728 | ||||||
2729 | Type* | |||||
2730 | SymbolFileDWARF::ResolveType (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* type_die, bool assert_not_being_parsed) | |||||
2731 | { | |||||
2732 | if (type_die != NULL__null) | |||||
2733 | { | |||||
2734 | Type *type = m_die_to_type.lookup (type_die); | |||||
2735 | ||||||
2736 | if (type == NULL__null) | |||||
2737 | type = GetTypeForDIE (dwarf_cu, type_die).get(); | |||||
2738 | ||||||
2739 | if (assert_not_being_parsed) | |||||
2740 | { | |||||
2741 | if (type != DIE_IS_BEING_PARSED((lldb_private::Type*)1)) | |||||
2742 | return type; | |||||
2743 | ||||||
2744 | GetObjectFile()->GetModule()->ReportError ("Parsing a die that is being parsed die: 0x%8.8x: %s %s", | |||||
2745 | type_die->GetOffset(), | |||||
2746 | DW_TAG_value_to_name(type_die->Tag()), | |||||
2747 | type_die->GetName(this, dwarf_cu)); | |||||
2748 | ||||||
2749 | } | |||||
2750 | else | |||||
2751 | return type; | |||||
2752 | } | |||||
2753 | return NULL__null; | |||||
2754 | } | |||||
2755 | ||||||
2756 | CompileUnit* | |||||
2757 | SymbolFileDWARF::GetCompUnitForDWARFCompUnit (DWARFCompileUnit* dwarf_cu, uint32_t cu_idx) | |||||
2758 | { | |||||
2759 | // Check if the symbol vendor already knows about this compile unit? | |||||
2760 | if (dwarf_cu->GetUserData() == NULL__null) | |||||
2761 | { | |||||
2762 | // The symbol vendor doesn't know about this compile unit, we | |||||
2763 | // need to parse and add it to the symbol vendor object. | |||||
2764 | return ParseCompileUnit(dwarf_cu, cu_idx).get(); | |||||
2765 | } | |||||
2766 | return (CompileUnit*)dwarf_cu->GetUserData(); | |||||
2767 | } | |||||
2768 | ||||||
2769 | bool | |||||
2770 | SymbolFileDWARF::GetFunction (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* func_die, SymbolContext& sc) | |||||
2771 | { | |||||
2772 | sc.Clear(false); | |||||
2773 | // Check if the symbol vendor already knows about this compile unit? | |||||
2774 | sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX(4294967295U)); | |||||
2775 | ||||||
2776 | sc.function = sc.comp_unit->FindFunctionByUID (MakeUserID(func_die->GetOffset())).get(); | |||||
2777 | if (sc.function == NULL__null) | |||||
2778 | sc.function = ParseCompileUnitFunction(sc, dwarf_cu, func_die); | |||||
2779 | ||||||
2780 | if (sc.function) | |||||
2781 | { | |||||
2782 | sc.module_sp = sc.function->CalculateSymbolContextModule(); | |||||
2783 | return true; | |||||
2784 | } | |||||
2785 | ||||||
2786 | return false; | |||||
2787 | } | |||||
2788 | ||||||
2789 | uint32_t | |||||
2790 | SymbolFileDWARF::ResolveSymbolContext (const Address& so_addr, uint32_t resolve_scope, SymbolContext& sc) | |||||
2791 | { | |||||
2792 | Timer scoped_timer(__PRETTY_FUNCTION__, | |||||
2793 | "SymbolFileDWARF::ResolveSymbolContext (so_addr = { section = %p, offset = 0x%" PRIx64"l" "x" " }, resolve_scope = 0x%8.8x)", | |||||
2794 | static_cast<void*>(so_addr.GetSection().get()), | |||||
2795 | so_addr.GetOffset(), resolve_scope); | |||||
2796 | uint32_t resolved = 0; | |||||
2797 | if (resolve_scope & ( eSymbolContextCompUnit | | |||||
2798 | eSymbolContextFunction | | |||||
2799 | eSymbolContextBlock | | |||||
2800 | eSymbolContextLineEntry)) | |||||
2801 | { | |||||
2802 | lldb::addr_t file_vm_addr = so_addr.GetFileAddress(); | |||||
2803 | ||||||
2804 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
2805 | if (debug_info) | |||||
2806 | { | |||||
2807 | const dw_offset_t cu_offset = debug_info->GetCompileUnitAranges().FindAddress(file_vm_addr); | |||||
2808 | if (cu_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||||
2809 | { | |||||
2810 | uint32_t cu_idx = DW_INVALID_INDEX0xFFFFFFFFul; | |||||
2811 | DWARFCompileUnit* dwarf_cu = debug_info->GetCompileUnit(cu_offset, &cu_idx).get(); | |||||
2812 | if (dwarf_cu) | |||||
2813 | { | |||||
2814 | sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, cu_idx); | |||||
2815 | if (sc.comp_unit) | |||||
2816 | { | |||||
2817 | resolved |= eSymbolContextCompUnit; | |||||
2818 | ||||||
2819 | bool force_check_line_table = false; | |||||
2820 | if (resolve_scope & (eSymbolContextFunction | eSymbolContextBlock)) | |||||
2821 | { | |||||
2822 | DWARFDebugInfoEntry *function_die = NULL__null; | |||||
2823 | DWARFDebugInfoEntry *block_die = NULL__null; | |||||
2824 | if (resolve_scope & eSymbolContextBlock) | |||||
2825 | { | |||||
2826 | dwarf_cu->LookupAddress(file_vm_addr, &function_die, &block_die); | |||||
2827 | } | |||||
2828 | else | |||||
2829 | { | |||||
2830 | dwarf_cu->LookupAddress(file_vm_addr, &function_die, NULL__null); | |||||
2831 | } | |||||
2832 | ||||||
2833 | if (function_die != NULL__null) | |||||
2834 | { | |||||
2835 | sc.function = sc.comp_unit->FindFunctionByUID (MakeUserID(function_die->GetOffset())).get(); | |||||
2836 | if (sc.function == NULL__null) | |||||
2837 | sc.function = ParseCompileUnitFunction(sc, dwarf_cu, function_die); | |||||
2838 | } | |||||
2839 | else | |||||
2840 | { | |||||
2841 | // We might have had a compile unit that had discontiguous | |||||
2842 | // address ranges where the gaps are symbols that don't have | |||||
2843 | // any debug info. Discontiguous compile unit address ranges | |||||
2844 | // should only happen when there aren't other functions from | |||||
2845 | // other compile units in these gaps. This helps keep the size | |||||
2846 | // of the aranges down. | |||||
2847 | force_check_line_table = true; | |||||
2848 | } | |||||
2849 | ||||||
2850 | if (sc.function != NULL__null) | |||||
2851 | { | |||||
2852 | resolved |= eSymbolContextFunction; | |||||
2853 | ||||||
2854 | if (resolve_scope & eSymbolContextBlock) | |||||
2855 | { | |||||
2856 | Block& block = sc.function->GetBlock (true); | |||||
2857 | ||||||
2858 | if (block_die != NULL__null) | |||||
2859 | sc.block = block.FindBlockByID (MakeUserID(block_die->GetOffset())); | |||||
2860 | else | |||||
2861 | sc.block = block.FindBlockByID (MakeUserID(function_die->GetOffset())); | |||||
2862 | if (sc.block) | |||||
2863 | resolved |= eSymbolContextBlock; | |||||
2864 | } | |||||
2865 | } | |||||
2866 | } | |||||
2867 | ||||||
2868 | if ((resolve_scope & eSymbolContextLineEntry) || force_check_line_table) | |||||
2869 | { | |||||
2870 | LineTable *line_table = sc.comp_unit->GetLineTable(); | |||||
2871 | if (line_table != NULL__null) | |||||
2872 | { | |||||
2873 | // And address that makes it into this function should be in terms | |||||
2874 | // of this debug file if there is no debug map, or it will be an | |||||
2875 | // address in the .o file which needs to be fixed up to be in terms | |||||
2876 | // of the debug map executable. Either way, calling FixupAddress() | |||||
2877 | // will work for us. | |||||
2878 | Address exe_so_addr (so_addr); | |||||
2879 | if (FixupAddress(exe_so_addr)) | |||||
2880 | { | |||||
2881 | if (line_table->FindLineEntryByAddress (exe_so_addr, sc.line_entry)) | |||||
2882 | { | |||||
2883 | resolved |= eSymbolContextLineEntry; | |||||
2884 | } | |||||
2885 | } | |||||
2886 | } | |||||
2887 | } | |||||
2888 | ||||||
2889 | if (force_check_line_table && !(resolved & eSymbolContextLineEntry)) | |||||
2890 | { | |||||
2891 | // We might have had a compile unit that had discontiguous | |||||
2892 | // address ranges where the gaps are symbols that don't have | |||||
2893 | // any debug info. Discontiguous compile unit address ranges | |||||
2894 | // should only happen when there aren't other functions from | |||||
2895 | // other compile units in these gaps. This helps keep the size | |||||
2896 | // of the aranges down. | |||||
2897 | sc.comp_unit = NULL__null; | |||||
2898 | resolved &= ~eSymbolContextCompUnit; | |||||
2899 | } | |||||
2900 | } | |||||
2901 | else | |||||
2902 | { | |||||
2903 | GetObjectFile()->GetModule()->ReportWarning ("0x%8.8x: compile unit %u failed to create a valid lldb_private::CompileUnit class.", | |||||
2904 | cu_offset, | |||||
2905 | cu_idx); | |||||
2906 | } | |||||
2907 | } | |||||
2908 | } | |||||
2909 | } | |||||
2910 | } | |||||
2911 | return resolved; | |||||
2912 | } | |||||
2913 | ||||||
2914 | ||||||
2915 | ||||||
2916 | uint32_t | |||||
2917 | SymbolFileDWARF::ResolveSymbolContext(const FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list) | |||||
2918 | { | |||||
2919 | const uint32_t prev_size = sc_list.GetSize(); | |||||
2920 | if (resolve_scope & eSymbolContextCompUnit) | |||||
2921 | { | |||||
2922 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
2923 | if (debug_info) | |||||
2924 | { | |||||
2925 | uint32_t cu_idx; | |||||
2926 | DWARFCompileUnit* dwarf_cu = NULL__null; | |||||
2927 | ||||||
2928 | for (cu_idx = 0; (dwarf_cu = debug_info->GetCompileUnitAtIndex(cu_idx)) != NULL__null; ++cu_idx) | |||||
2929 | { | |||||
2930 | CompileUnit *dc_cu = GetCompUnitForDWARFCompUnit(dwarf_cu, cu_idx); | |||||
2931 | const bool full_match = (bool)file_spec.GetDirectory(); | |||||
2932 | bool file_spec_matches_cu_file_spec = dc_cu != NULL__null && FileSpec::Equal(file_spec, *dc_cu, full_match); | |||||
2933 | if (check_inlines || file_spec_matches_cu_file_spec) | |||||
2934 | { | |||||
2935 | SymbolContext sc (m_obj_file->GetModule()); | |||||
2936 | sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, cu_idx); | |||||
2937 | if (sc.comp_unit) | |||||
2938 | { | |||||
2939 | uint32_t file_idx = UINT32_MAX(4294967295U); | |||||
2940 | ||||||
2941 | // If we are looking for inline functions only and we don't | |||||
2942 | // find it in the support files, we are done. | |||||
2943 | if (check_inlines) | |||||
2944 | { | |||||
2945 | file_idx = sc.comp_unit->GetSupportFiles().FindFileIndex (1, file_spec, true); | |||||
2946 | if (file_idx == UINT32_MAX(4294967295U)) | |||||
2947 | continue; | |||||
2948 | } | |||||
2949 | ||||||
2950 | if (line != 0) | |||||
2951 | { | |||||
2952 | LineTable *line_table = sc.comp_unit->GetLineTable(); | |||||
2953 | ||||||
2954 | if (line_table != NULL__null && line != 0) | |||||
2955 | { | |||||
2956 | // We will have already looked up the file index if | |||||
2957 | // we are searching for inline entries. | |||||
2958 | if (!check_inlines) | |||||
2959 | file_idx = sc.comp_unit->GetSupportFiles().FindFileIndex (1, file_spec, true); | |||||
2960 | ||||||
2961 | if (file_idx != UINT32_MAX(4294967295U)) | |||||
2962 | { | |||||
2963 | uint32_t found_line; | |||||
2964 | uint32_t line_idx = line_table->FindLineEntryIndexByFileIndex (0, file_idx, line, false, &sc.line_entry); | |||||
2965 | found_line = sc.line_entry.line; | |||||
2966 | ||||||
2967 | while (line_idx != UINT32_MAX(4294967295U)) | |||||
2968 | { | |||||
2969 | sc.function = NULL__null; | |||||
2970 | sc.block = NULL__null; | |||||
2971 | if (resolve_scope & (eSymbolContextFunction | eSymbolContextBlock)) | |||||
2972 | { | |||||
2973 | const lldb::addr_t file_vm_addr = sc.line_entry.range.GetBaseAddress().GetFileAddress(); | |||||
2974 | if (file_vm_addr != LLDB_INVALID_ADDRESS(18446744073709551615UL)) | |||||
2975 | { | |||||
2976 | DWARFDebugInfoEntry *function_die = NULL__null; | |||||
2977 | DWARFDebugInfoEntry *block_die = NULL__null; | |||||
2978 | dwarf_cu->LookupAddress(file_vm_addr, &function_die, resolve_scope & eSymbolContextBlock ? &block_die : NULL__null); | |||||
2979 | ||||||
2980 | if (function_die != NULL__null) | |||||
2981 | { | |||||
2982 | sc.function = sc.comp_unit->FindFunctionByUID (MakeUserID(function_die->GetOffset())).get(); | |||||
2983 | if (sc.function == NULL__null) | |||||
2984 | sc.function = ParseCompileUnitFunction(sc, dwarf_cu, function_die); | |||||
2985 | } | |||||
2986 | ||||||
2987 | if (sc.function != NULL__null) | |||||
2988 | { | |||||
2989 | Block& block = sc.function->GetBlock (true); | |||||
2990 | ||||||
2991 | if (block_die != NULL__null) | |||||
2992 | sc.block = block.FindBlockByID (MakeUserID(block_die->GetOffset())); | |||||
2993 | else | |||||
2994 | sc.block = block.FindBlockByID (MakeUserID(function_die->GetOffset())); | |||||
2995 | } | |||||
2996 | } | |||||
2997 | } | |||||
2998 | ||||||
2999 | sc_list.Append(sc); | |||||
3000 | line_idx = line_table->FindLineEntryIndexByFileIndex (line_idx + 1, file_idx, found_line, true, &sc.line_entry); | |||||
3001 | } | |||||
3002 | } | |||||
3003 | } | |||||
3004 | else if (file_spec_matches_cu_file_spec && !check_inlines) | |||||
3005 | { | |||||
3006 | // only append the context if we aren't looking for inline call sites | |||||
3007 | // by file and line and if the file spec matches that of the compile unit | |||||
3008 | sc_list.Append(sc); | |||||
3009 | } | |||||
3010 | } | |||||
3011 | else if (file_spec_matches_cu_file_spec && !check_inlines) | |||||
3012 | { | |||||
3013 | // only append the context if we aren't looking for inline call sites | |||||
3014 | // by file and line and if the file spec matches that of the compile unit | |||||
3015 | sc_list.Append(sc); | |||||
3016 | } | |||||
3017 | ||||||
3018 | if (!check_inlines) | |||||
3019 | break; | |||||
3020 | } | |||||
3021 | } | |||||
3022 | } | |||||
3023 | } | |||||
3024 | } | |||||
3025 | return sc_list.GetSize() - prev_size; | |||||
3026 | } | |||||
3027 | ||||||
3028 | void | |||||
3029 | SymbolFileDWARF::Index () | |||||
3030 | { | |||||
3031 | if (m_indexed) | |||||
3032 | return; | |||||
3033 | m_indexed = true; | |||||
3034 | Timer scoped_timer (__PRETTY_FUNCTION__, | |||||
3035 | "SymbolFileDWARF::Index (%s)", | |||||
3036 | GetObjectFile()->GetFileSpec().GetFilename().AsCString()); | |||||
3037 | ||||||
3038 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
3039 | if (debug_info) | |||||
3040 | { | |||||
3041 | uint32_t cu_idx = 0; | |||||
3042 | const uint32_t num_compile_units = GetNumCompileUnits(); | |||||
3043 | for (cu_idx = 0; cu_idx < num_compile_units; ++cu_idx) | |||||
3044 | { | |||||
3045 | DWARFCompileUnit* dwarf_cu = debug_info->GetCompileUnitAtIndex(cu_idx); | |||||
3046 | ||||||
3047 | bool clear_dies = dwarf_cu->ExtractDIEsIfNeeded (false) > 1; | |||||
3048 | ||||||
3049 | dwarf_cu->Index (cu_idx, | |||||
3050 | m_function_basename_index, | |||||
3051 | m_function_fullname_index, | |||||
3052 | m_function_method_index, | |||||
3053 | m_function_selector_index, | |||||
3054 | m_objc_class_selectors_index, | |||||
3055 | m_global_index, | |||||
3056 | m_type_index, | |||||
3057 | m_namespace_index); | |||||
3058 | ||||||
3059 | // Keep memory down by clearing DIEs if this generate function | |||||
3060 | // caused them to be parsed | |||||
3061 | if (clear_dies) | |||||
3062 | dwarf_cu->ClearDIEs (true); | |||||
3063 | } | |||||
3064 | ||||||
3065 | m_function_basename_index.Finalize(); | |||||
3066 | m_function_fullname_index.Finalize(); | |||||
3067 | m_function_method_index.Finalize(); | |||||
3068 | m_function_selector_index.Finalize(); | |||||
3069 | m_objc_class_selectors_index.Finalize(); | |||||
3070 | m_global_index.Finalize(); | |||||
3071 | m_type_index.Finalize(); | |||||
3072 | m_namespace_index.Finalize(); | |||||
3073 | ||||||
3074 | #if defined (ENABLE_DEBUG_PRINTF) | |||||
3075 | StreamFile s(stdoutstdout, false); | |||||
3076 | s.Printf ("DWARF index for '%s':", | |||||
3077 | GetObjectFile()->GetFileSpec().GetPath().c_str()); | |||||
3078 | s.Printf("\nFunction basenames:\n"); m_function_basename_index.Dump (&s); | |||||
3079 | s.Printf("\nFunction fullnames:\n"); m_function_fullname_index.Dump (&s); | |||||
3080 | s.Printf("\nFunction methods:\n"); m_function_method_index.Dump (&s); | |||||
3081 | s.Printf("\nFunction selectors:\n"); m_function_selector_index.Dump (&s); | |||||
3082 | s.Printf("\nObjective C class selectors:\n"); m_objc_class_selectors_index.Dump (&s); | |||||
3083 | s.Printf("\nGlobals and statics:\n"); m_global_index.Dump (&s); | |||||
3084 | s.Printf("\nTypes:\n"); m_type_index.Dump (&s); | |||||
3085 | s.Printf("\nNamepaces:\n"); m_namespace_index.Dump (&s); | |||||
3086 | #endif | |||||
3087 | } | |||||
3088 | } | |||||
3089 | ||||||
3090 | bool | |||||
3091 | SymbolFileDWARF::NamespaceDeclMatchesThisSymbolFile (const ClangNamespaceDecl *namespace_decl) | |||||
3092 | { | |||||
3093 | if (namespace_decl == NULL__null) | |||||
3094 | { | |||||
3095 | // Invalid namespace decl which means we aren't matching only things | |||||
3096 | // in this symbol file, so return true to indicate it matches this | |||||
3097 | // symbol file. | |||||
3098 | return true; | |||||
3099 | } | |||||
3100 | ||||||
3101 | clang::ASTContext *namespace_ast = namespace_decl->GetASTContext(); | |||||
3102 | ||||||
3103 | if (namespace_ast == NULL__null) | |||||
3104 | return true; // No AST in the "namespace_decl", return true since it | |||||
3105 | // could then match any symbol file, including this one | |||||
3106 | ||||||
3107 | if (namespace_ast == GetClangASTContext().getASTContext()) | |||||
3108 | return true; // The ASTs match, return true | |||||
3109 | ||||||
3110 | // The namespace AST was valid, and it does not match... | |||||
3111 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS(1u << 6))); | |||||
3112 | ||||||
3113 | if (log) | |||||
3114 | GetObjectFile()->GetModule()->LogMessage(log, "Valid namespace does not match symbol file"); | |||||
3115 | ||||||
3116 | return false; | |||||
3117 | } | |||||
3118 | ||||||
3119 | bool | |||||
3120 | SymbolFileDWARF::DIEIsInNamespace (const ClangNamespaceDecl *namespace_decl, | |||||
3121 | DWARFCompileUnit* cu, | |||||
3122 | const DWARFDebugInfoEntry* die) | |||||
3123 | { | |||||
3124 | // No namespace specified, so the answer is | |||||
3125 | if (namespace_decl == NULL__null) | |||||
3126 | return true; | |||||
3127 | ||||||
3128 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS(1u << 6))); | |||||
3129 | ||||||
3130 | const DWARFDebugInfoEntry *decl_ctx_die = NULL__null; | |||||
3131 | clang::DeclContext *die_clang_decl_ctx = GetClangDeclContextContainingDIE (cu, die, &decl_ctx_die); | |||||
3132 | if (decl_ctx_die) | |||||
3133 | { | |||||
3134 | clang::NamespaceDecl *clang_namespace_decl = namespace_decl->GetNamespaceDecl(); | |||||
3135 | ||||||
3136 | if (clang_namespace_decl) | |||||
3137 | { | |||||
3138 | if (decl_ctx_die->Tag() != DW_TAG_namespace) | |||||
3139 | { | |||||
3140 | if (log) | |||||
3141 | GetObjectFile()->GetModule()->LogMessage(log, "Found a match, but its parent is not a namespace"); | |||||
3142 | return false; | |||||
3143 | } | |||||
3144 | ||||||
3145 | if (clang_namespace_decl == die_clang_decl_ctx) | |||||
3146 | return true; | |||||
3147 | else | |||||
3148 | return false; | |||||
3149 | } | |||||
3150 | else | |||||
3151 | { | |||||
3152 | // We have a namespace_decl that was not NULL but it contained | |||||
3153 | // a NULL "clang::NamespaceDecl", so this means the global namespace | |||||
3154 | // So as long the contained decl context DIE isn't a namespace | |||||
3155 | // we should be ok. | |||||
3156 | if (decl_ctx_die->Tag() != DW_TAG_namespace) | |||||
3157 | return true; | |||||
3158 | } | |||||
3159 | } | |||||
3160 | ||||||
3161 | if (log) | |||||
3162 | GetObjectFile()->GetModule()->LogMessage(log, "Found a match, but its parent doesn't exist"); | |||||
3163 | ||||||
3164 | return false; | |||||
3165 | } | |||||
3166 | uint32_t | |||||
3167 | SymbolFileDWARF::FindGlobalVariables (const ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, VariableList& variables) | |||||
3168 | { | |||||
3169 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS(1u << 6))); | |||||
3170 | ||||||
3171 | if (log) | |||||
3172 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
3173 | "SymbolFileDWARF::FindGlobalVariables (name=\"%s\", namespace_decl=%p, append=%u, max_matches=%u, variables)", | |||||
3174 | name.GetCString(), | |||||
3175 | static_cast<const void*>(namespace_decl), | |||||
3176 | append, max_matches); | |||||
3177 | ||||||
3178 | if (!NamespaceDeclMatchesThisSymbolFile(namespace_decl)) | |||||
3179 | return 0; | |||||
3180 | ||||||
3181 | DWARFDebugInfo* info = DebugInfo(); | |||||
3182 | if (info == NULL__null) | |||||
3183 | return 0; | |||||
3184 | ||||||
3185 | // If we aren't appending the results to this list, then clear the list | |||||
3186 | if (!append) | |||||
3187 | variables.Clear(); | |||||
3188 | ||||||
3189 | // Remember how many variables are in the list before we search in case | |||||
3190 | // we are appending the results to a variable list. | |||||
3191 | const uint32_t original_size = variables.GetSize(); | |||||
3192 | ||||||
3193 | DIEArray die_offsets; | |||||
3194 | ||||||
3195 | if (m_using_apple_tables) | |||||
3196 | { | |||||
3197 | if (m_apple_names_ap.get()) | |||||
3198 | { | |||||
3199 | const char *name_cstr = name.GetCString(); | |||||
3200 | const char *base_name_start; | |||||
3201 | const char *base_name_end = NULL__null; | |||||
3202 | ||||||
3203 | if (!CPPLanguageRuntime::StripNamespacesFromVariableName(name_cstr, base_name_start, base_name_end)) | |||||
3204 | base_name_start = name_cstr; | |||||
3205 | ||||||
3206 | m_apple_names_ap->FindByName (base_name_start, die_offsets); | |||||
3207 | } | |||||
3208 | } | |||||
3209 | else | |||||
3210 | { | |||||
3211 | // Index the DWARF if we haven't already | |||||
3212 | if (!m_indexed) | |||||
3213 | Index (); | |||||
3214 | ||||||
3215 | m_global_index.Find (name, die_offsets); | |||||
3216 | } | |||||
3217 | ||||||
3218 | const size_t num_die_matches = die_offsets.size(); | |||||
3219 | if (num_die_matches) | |||||
3220 | { | |||||
3221 | SymbolContext sc; | |||||
3222 | sc.module_sp = m_obj_file->GetModule(); | |||||
3223 | assert (sc.module_sp)((sc.module_sp) ? static_cast<void> (0) : __assert_fail ("sc.module_sp", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 3223, __PRETTY_FUNCTION__)); | |||||
3224 | ||||||
3225 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
3226 | DWARFCompileUnit* dwarf_cu = NULL__null; | |||||
3227 | const DWARFDebugInfoEntry* die = NULL__null; | |||||
3228 | bool done = false; | |||||
3229 | for (size_t i=0; i<num_die_matches && !done; ++i) | |||||
3230 | { | |||||
3231 | const dw_offset_t die_offset = die_offsets[i]; | |||||
3232 | die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||||
3233 | ||||||
3234 | if (die) | |||||
3235 | { | |||||
3236 | switch (die->Tag()) | |||||
3237 | { | |||||
3238 | default: | |||||
3239 | case DW_TAG_subprogram: | |||||
3240 | case DW_TAG_inlined_subroutine: | |||||
3241 | case DW_TAG_try_block: | |||||
3242 | case DW_TAG_catch_block: | |||||
3243 | break; | |||||
3244 | ||||||
3245 | case DW_TAG_variable: | |||||
3246 | { | |||||
3247 | sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX(4294967295U)); | |||||
3248 | ||||||
3249 | if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die)) | |||||
3250 | continue; | |||||
3251 | ||||||
3252 | ParseVariables(sc, dwarf_cu, LLDB_INVALID_ADDRESS(18446744073709551615UL), die, false, false, &variables); | |||||
3253 | ||||||
3254 | if (variables.GetSize() - original_size >= max_matches) | |||||
3255 | done = true; | |||||
3256 | } | |||||
3257 | break; | |||||
3258 | } | |||||
3259 | } | |||||
3260 | else | |||||
3261 | { | |||||
3262 | if (m_using_apple_tables) | |||||
3263 | { | |||||
3264 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')\n", | |||||
3265 | die_offset, name.GetCString()); | |||||
3266 | } | |||||
3267 | } | |||||
3268 | } | |||||
3269 | } | |||||
3270 | ||||||
3271 | // Return the number of variable that were appended to the list | |||||
3272 | const uint32_t num_matches = variables.GetSize() - original_size; | |||||
3273 | if (log && num_matches > 0) | |||||
3274 | { | |||||
3275 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
3276 | "SymbolFileDWARF::FindGlobalVariables (name=\"%s\", namespace_decl=%p, append=%u, max_matches=%u, variables) => %u", | |||||
3277 | name.GetCString(), | |||||
3278 | static_cast<const void*>(namespace_decl), | |||||
3279 | append, max_matches, | |||||
3280 | num_matches); | |||||
3281 | } | |||||
3282 | return num_matches; | |||||
3283 | } | |||||
3284 | ||||||
3285 | uint32_t | |||||
3286 | SymbolFileDWARF::FindGlobalVariables(const RegularExpression& regex, bool append, uint32_t max_matches, VariableList& variables) | |||||
3287 | { | |||||
3288 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS(1u << 6))); | |||||
3289 | ||||||
3290 | if (log) | |||||
3291 | { | |||||
3292 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
3293 | "SymbolFileDWARF::FindGlobalVariables (regex=\"%s\", append=%u, max_matches=%u, variables)", | |||||
3294 | regex.GetText(), append, | |||||
3295 | max_matches); | |||||
3296 | } | |||||
3297 | ||||||
3298 | DWARFDebugInfo* info = DebugInfo(); | |||||
3299 | if (info == NULL__null) | |||||
3300 | return 0; | |||||
3301 | ||||||
3302 | // If we aren't appending the results to this list, then clear the list | |||||
3303 | if (!append) | |||||
3304 | variables.Clear(); | |||||
3305 | ||||||
3306 | // Remember how many variables are in the list before we search in case | |||||
3307 | // we are appending the results to a variable list. | |||||
3308 | const uint32_t original_size = variables.GetSize(); | |||||
3309 | ||||||
3310 | DIEArray die_offsets; | |||||
3311 | ||||||
3312 | if (m_using_apple_tables) | |||||
3313 | { | |||||
3314 | if (m_apple_names_ap.get()) | |||||
3315 | { | |||||
3316 | DWARFMappedHash::DIEInfoArray hash_data_array; | |||||
3317 | if (m_apple_names_ap->AppendAllDIEsThatMatchingRegex (regex, hash_data_array)) | |||||
3318 | DWARFMappedHash::ExtractDIEArray (hash_data_array, die_offsets); | |||||
3319 | } | |||||
3320 | } | |||||
3321 | else | |||||
3322 | { | |||||
3323 | // Index the DWARF if we haven't already | |||||
3324 | if (!m_indexed) | |||||
3325 | Index (); | |||||
3326 | ||||||
3327 | m_global_index.Find (regex, die_offsets); | |||||
3328 | } | |||||
3329 | ||||||
3330 | SymbolContext sc; | |||||
3331 | sc.module_sp = m_obj_file->GetModule(); | |||||
3332 | assert (sc.module_sp)((sc.module_sp) ? static_cast<void> (0) : __assert_fail ("sc.module_sp", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 3332, __PRETTY_FUNCTION__)); | |||||
3333 | ||||||
3334 | DWARFCompileUnit* dwarf_cu = NULL__null; | |||||
3335 | const DWARFDebugInfoEntry* die = NULL__null; | |||||
3336 | const size_t num_matches = die_offsets.size(); | |||||
3337 | if (num_matches) | |||||
3338 | { | |||||
3339 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
3340 | for (size_t i=0; i<num_matches; ++i) | |||||
3341 | { | |||||
3342 | const dw_offset_t die_offset = die_offsets[i]; | |||||
3343 | die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||||
3344 | ||||||
3345 | if (die) | |||||
3346 | { | |||||
3347 | sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX(4294967295U)); | |||||
3348 | ||||||
3349 | ParseVariables(sc, dwarf_cu, LLDB_INVALID_ADDRESS(18446744073709551615UL), die, false, false, &variables); | |||||
3350 | ||||||
3351 | if (variables.GetSize() - original_size >= max_matches) | |||||
3352 | break; | |||||
3353 | } | |||||
3354 | else | |||||
3355 | { | |||||
3356 | if (m_using_apple_tables) | |||||
3357 | { | |||||
3358 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for regex '%s')\n", | |||||
3359 | die_offset, regex.GetText()); | |||||
3360 | } | |||||
3361 | } | |||||
3362 | } | |||||
3363 | } | |||||
3364 | ||||||
3365 | // Return the number of variable that were appended to the list | |||||
3366 | return variables.GetSize() - original_size; | |||||
3367 | } | |||||
3368 | ||||||
3369 | ||||||
3370 | bool | |||||
3371 | SymbolFileDWARF::ResolveFunction (dw_offset_t die_offset, | |||||
3372 | DWARFCompileUnit *&dwarf_cu, | |||||
3373 | SymbolContextList& sc_list) | |||||
3374 | { | |||||
3375 | const DWARFDebugInfoEntry *die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||||
3376 | return ResolveFunction (dwarf_cu, die, sc_list); | |||||
3377 | } | |||||
3378 | ||||||
3379 | ||||||
3380 | bool | |||||
3381 | SymbolFileDWARF::ResolveFunction (DWARFCompileUnit *cu, | |||||
3382 | const DWARFDebugInfoEntry *die, | |||||
3383 | SymbolContextList& sc_list) | |||||
3384 | { | |||||
3385 | SymbolContext sc; | |||||
3386 | ||||||
3387 | if (die == NULL__null) | |||||
3388 | return false; | |||||
3389 | ||||||
3390 | // If we were passed a die that is not a function, just return false... | |||||
3391 | if (die->Tag() != DW_TAG_subprogram && die->Tag() != DW_TAG_inlined_subroutine) | |||||
3392 | return false; | |||||
3393 | ||||||
3394 | const DWARFDebugInfoEntry* inlined_die = NULL__null; | |||||
3395 | if (die->Tag() == DW_TAG_inlined_subroutine) | |||||
3396 | { | |||||
3397 | inlined_die = die; | |||||
3398 | ||||||
3399 | while ((die = die->GetParent()) != NULL__null) | |||||
3400 | { | |||||
3401 | if (die->Tag() == DW_TAG_subprogram) | |||||
3402 | break; | |||||
3403 | } | |||||
3404 | } | |||||
3405 | assert (die->Tag() == DW_TAG_subprogram)((die->Tag() == DW_TAG_subprogram) ? static_cast<void> (0) : __assert_fail ("die->Tag() == DW_TAG_subprogram", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 3405, __PRETTY_FUNCTION__)); | |||||
| ||||||
3406 | if (GetFunction (cu, die, sc)) | |||||
3407 | { | |||||
3408 | Address addr; | |||||
3409 | // Parse all blocks if needed | |||||
3410 | if (inlined_die) | |||||
3411 | { | |||||
3412 | sc.block = sc.function->GetBlock (true).FindBlockByID (MakeUserID(inlined_die->GetOffset())); | |||||
3413 | assert (sc.block != NULL)((sc.block != __null) ? static_cast<void> (0) : __assert_fail ("sc.block != __null", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 3413, __PRETTY_FUNCTION__)); | |||||
3414 | if (sc.block->GetStartAddress (addr) == false) | |||||
3415 | addr.Clear(); | |||||
3416 | } | |||||
3417 | else | |||||
3418 | { | |||||
3419 | sc.block = NULL__null; | |||||
3420 | addr = sc.function->GetAddressRange().GetBaseAddress(); | |||||
3421 | } | |||||
3422 | ||||||
3423 | if (addr.IsValid()) | |||||
3424 | { | |||||
3425 | sc_list.Append(sc); | |||||
3426 | return true; | |||||
3427 | } | |||||
3428 | } | |||||
3429 | ||||||
3430 | return false; | |||||
3431 | } | |||||
3432 | ||||||
3433 | void | |||||
3434 | SymbolFileDWARF::FindFunctions (const ConstString &name, | |||||
3435 | const NameToDIE &name_to_die, | |||||
3436 | SymbolContextList& sc_list) | |||||
3437 | { | |||||
3438 | DIEArray die_offsets; | |||||
3439 | if (name_to_die.Find (name, die_offsets)) | |||||
3440 | { | |||||
3441 | ParseFunctions (die_offsets, sc_list); | |||||
3442 | } | |||||
3443 | } | |||||
3444 | ||||||
3445 | ||||||
3446 | void | |||||
3447 | SymbolFileDWARF::FindFunctions (const RegularExpression ®ex, | |||||
3448 | const NameToDIE &name_to_die, | |||||
3449 | SymbolContextList& sc_list) | |||||
3450 | { | |||||
3451 | DIEArray die_offsets; | |||||
3452 | if (name_to_die.Find (regex, die_offsets)) | |||||
3453 | { | |||||
3454 | ParseFunctions (die_offsets, sc_list); | |||||
3455 | } | |||||
3456 | } | |||||
3457 | ||||||
3458 | ||||||
3459 | void | |||||
3460 | SymbolFileDWARF::FindFunctions (const RegularExpression ®ex, | |||||
3461 | const DWARFMappedHash::MemoryTable &memory_table, | |||||
3462 | SymbolContextList& sc_list) | |||||
3463 | { | |||||
3464 | DIEArray die_offsets; | |||||
3465 | DWARFMappedHash::DIEInfoArray hash_data_array; | |||||
3466 | if (memory_table.AppendAllDIEsThatMatchingRegex (regex, hash_data_array)) | |||||
3467 | { | |||||
3468 | DWARFMappedHash::ExtractDIEArray (hash_data_array, die_offsets); | |||||
3469 | ParseFunctions (die_offsets, sc_list); | |||||
3470 | } | |||||
3471 | } | |||||
3472 | ||||||
3473 | void | |||||
3474 | SymbolFileDWARF::ParseFunctions (const DIEArray &die_offsets, | |||||
3475 | SymbolContextList& sc_list) | |||||
3476 | { | |||||
3477 | const size_t num_matches = die_offsets.size(); | |||||
3478 | if (num_matches) | |||||
3479 | { | |||||
3480 | SymbolContext sc; | |||||
3481 | ||||||
3482 | DWARFCompileUnit* dwarf_cu = NULL__null; | |||||
3483 | for (size_t i=0; i<num_matches; ++i) | |||||
3484 | { | |||||
3485 | const dw_offset_t die_offset = die_offsets[i]; | |||||
3486 | ResolveFunction (die_offset, dwarf_cu, sc_list); | |||||
3487 | } | |||||
3488 | } | |||||
3489 | } | |||||
3490 | ||||||
3491 | bool | |||||
3492 | SymbolFileDWARF::FunctionDieMatchesPartialName (const DWARFDebugInfoEntry* die, | |||||
3493 | const DWARFCompileUnit *dwarf_cu, | |||||
3494 | uint32_t name_type_mask, | |||||
3495 | const char *partial_name, | |||||
3496 | const char *base_name_start, | |||||
3497 | const char *base_name_end) | |||||
3498 | { | |||||
3499 | // If we are looking only for methods, throw away all the ones that are or aren't in C++ classes: | |||||
3500 | if (name_type_mask == eFunctionNameTypeMethod || name_type_mask == eFunctionNameTypeBase) | |||||
3501 | { | |||||
3502 | clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIEOffset(die->GetOffset()); | |||||
3503 | if (!containing_decl_ctx) | |||||
3504 | return false; | |||||
3505 | ||||||
3506 | bool is_cxx_method = DeclKindIsCXXClass(containing_decl_ctx->getDeclKind()); | |||||
3507 | ||||||
3508 | if (name_type_mask == eFunctionNameTypeMethod) | |||||
3509 | { | |||||
3510 | if (is_cxx_method == false) | |||||
3511 | return false; | |||||
3512 | } | |||||
3513 | ||||||
3514 | if (name_type_mask == eFunctionNameTypeBase) | |||||
3515 | { | |||||
3516 | if (is_cxx_method == true) | |||||
3517 | return false; | |||||
3518 | } | |||||
3519 | } | |||||
3520 | ||||||
3521 | // Now we need to check whether the name we got back for this type matches the extra specifications | |||||
3522 | // that were in the name we're looking up: | |||||
3523 | if (base_name_start != partial_name || *base_name_end != '\0') | |||||
3524 | { | |||||
3525 | // First see if the stuff to the left matches the full name. To do that let's see if | |||||
3526 | // we can pull out the mips linkage name attribute: | |||||
3527 | ||||||
3528 | Mangled best_name; | |||||
3529 | DWARFDebugInfoEntry::Attributes attributes; | |||||
3530 | DWARFFormValue form_value; | |||||
3531 | die->GetAttributes(this, dwarf_cu, NULL__null, attributes); | |||||
3532 | uint32_t idx = attributes.FindAttributeIndex(DW_AT_MIPS_linkage_name); | |||||
3533 | if (idx == UINT32_MAX(4294967295U)) | |||||
3534 | idx = attributes.FindAttributeIndex(DW_AT_linkage_name); | |||||
3535 | if (idx != UINT32_MAX(4294967295U)) | |||||
3536 | { | |||||
3537 | if (attributes.ExtractFormValueAtIndex(this, idx, form_value)) | |||||
3538 | { | |||||
3539 | const char *mangled_name = form_value.AsCString(&get_debug_str_data()); | |||||
3540 | if (mangled_name) | |||||
3541 | best_name.SetValue (ConstString(mangled_name), true); | |||||
3542 | } | |||||
3543 | } | |||||
3544 | ||||||
3545 | if (!best_name) | |||||
3546 | { | |||||
3547 | idx = attributes.FindAttributeIndex(DW_AT_name); | |||||
3548 | if (idx != UINT32_MAX(4294967295U) && attributes.ExtractFormValueAtIndex(this, idx, form_value)) | |||||
3549 | { | |||||
3550 | const char *name = form_value.AsCString(&get_debug_str_data()); | |||||
3551 | best_name.SetValue (ConstString(name), false); | |||||
3552 | } | |||||
3553 | } | |||||
3554 | ||||||
3555 | if (best_name.GetDemangledName()) | |||||
3556 | { | |||||
3557 | const char *demangled = best_name.GetDemangledName().GetCString(); | |||||
3558 | if (demangled) | |||||
3559 | { | |||||
3560 | std::string name_no_parens(partial_name, base_name_end - partial_name); | |||||
3561 | const char *partial_in_demangled = strstr (demangled, name_no_parens.c_str()); | |||||
3562 | if (partial_in_demangled == NULL__null) | |||||
3563 | return false; | |||||
3564 | else | |||||
3565 | { | |||||
3566 | // Sort out the case where our name is something like "Process::Destroy" and the match is | |||||
3567 | // "SBProcess::Destroy" - that shouldn't be a match. We should really always match on | |||||
3568 | // namespace boundaries... | |||||
3569 | ||||||
3570 | if (partial_name[0] == ':' && partial_name[1] == ':') | |||||
3571 | { | |||||
3572 | // The partial name was already on a namespace boundary so all matches are good. | |||||
3573 | return true; | |||||
3574 | } | |||||
3575 | else if (partial_in_demangled == demangled) | |||||
3576 | { | |||||
3577 | // They both start the same, so this is an good match. | |||||
3578 | return true; | |||||
3579 | } | |||||
3580 | else | |||||
3581 | { | |||||
3582 | if (partial_in_demangled - demangled == 1) | |||||
3583 | { | |||||
3584 | // Only one character difference, can't be a namespace boundary... | |||||
3585 | return false; | |||||
3586 | } | |||||
3587 | else if (*(partial_in_demangled - 1) == ':' && *(partial_in_demangled - 2) == ':') | |||||
3588 | { | |||||
3589 | // We are on a namespace boundary, so this is also good. | |||||
3590 | return true; | |||||
3591 | } | |||||
3592 | else | |||||
3593 | return false; | |||||
3594 | } | |||||
3595 | } | |||||
3596 | } | |||||
3597 | } | |||||
3598 | } | |||||
3599 | ||||||
3600 | return true; | |||||
3601 | } | |||||
3602 | ||||||
3603 | uint32_t | |||||
3604 | SymbolFileDWARF::FindFunctions (const ConstString &name, | |||||
3605 | const lldb_private::ClangNamespaceDecl *namespace_decl, | |||||
3606 | uint32_t name_type_mask, | |||||
3607 | bool include_inlines, | |||||
3608 | bool append, | |||||
3609 | SymbolContextList& sc_list) | |||||
3610 | { | |||||
3611 | Timer scoped_timer (__PRETTY_FUNCTION__, | |||||
3612 | "SymbolFileDWARF::FindFunctions (name = '%s')", | |||||
3613 | name.AsCString()); | |||||
3614 | ||||||
3615 | // eFunctionNameTypeAuto should be pre-resolved by a call to Module::PrepareForFunctionNameLookup() | |||||
3616 | assert ((name_type_mask & eFunctionNameTypeAuto) == 0)(((name_type_mask & eFunctionNameTypeAuto) == 0) ? static_cast <void> (0) : __assert_fail ("(name_type_mask & eFunctionNameTypeAuto) == 0" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 3616, __PRETTY_FUNCTION__)); | |||||
3617 | ||||||
3618 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS(1u << 6))); | |||||
3619 | ||||||
3620 | if (log) | |||||
3621 | { | |||||
3622 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
3623 | "SymbolFileDWARF::FindFunctions (name=\"%s\", name_type_mask=0x%x, append=%u, sc_list)", | |||||
3624 | name.GetCString(), | |||||
3625 | name_type_mask, | |||||
3626 | append); | |||||
3627 | } | |||||
3628 | ||||||
3629 | // If we aren't appending the results to this list, then clear the list | |||||
3630 | if (!append) | |||||
3631 | sc_list.Clear(); | |||||
3632 | ||||||
3633 | if (!NamespaceDeclMatchesThisSymbolFile(namespace_decl)) | |||||
3634 | return 0; | |||||
3635 | ||||||
3636 | // If name is empty then we won't find anything. | |||||
3637 | if (name.IsEmpty()) | |||||
3638 | return 0; | |||||
3639 | ||||||
3640 | // Remember how many sc_list are in the list before we search in case | |||||
3641 | // we are appending the results to a variable list. | |||||
3642 | ||||||
3643 | const char *name_cstr = name.GetCString(); | |||||
3644 | ||||||
3645 | const uint32_t original_size = sc_list.GetSize(); | |||||
3646 | ||||||
3647 | DWARFDebugInfo* info = DebugInfo(); | |||||
3648 | if (info == NULL__null) | |||||
3649 | return 0; | |||||
3650 | ||||||
3651 | DWARFCompileUnit *dwarf_cu = NULL__null; | |||||
3652 | std::set<const DWARFDebugInfoEntry *> resolved_dies; | |||||
3653 | if (m_using_apple_tables) | |||||
3654 | { | |||||
3655 | if (m_apple_names_ap.get()) | |||||
3656 | { | |||||
3657 | ||||||
3658 | DIEArray die_offsets; | |||||
3659 | ||||||
3660 | uint32_t num_matches = 0; | |||||
3661 | ||||||
3662 | if (name_type_mask & eFunctionNameTypeFull) | |||||
3663 | { | |||||
3664 | // If they asked for the full name, match what they typed. At some point we may | |||||
3665 | // want to canonicalize this (strip double spaces, etc. For now, we just add all the | |||||
3666 | // dies that we find by exact match. | |||||
3667 | num_matches = m_apple_names_ap->FindByName (name_cstr, die_offsets); | |||||
3668 | for (uint32_t i = 0; i < num_matches; i++) | |||||
3669 | { | |||||
3670 | const dw_offset_t die_offset = die_offsets[i]; | |||||
3671 | const DWARFDebugInfoEntry *die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||||
3672 | if (die) | |||||
3673 | { | |||||
3674 | if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die)) | |||||
3675 | continue; | |||||
3676 | ||||||
3677 | if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine) | |||||
3678 | continue; | |||||
3679 | ||||||
3680 | if (resolved_dies.find(die) == resolved_dies.end()) | |||||
3681 | { | |||||
3682 | if (ResolveFunction (dwarf_cu, die, sc_list)) | |||||
3683 | resolved_dies.insert(die); | |||||
3684 | } | |||||
3685 | } | |||||
3686 | else | |||||
3687 | { | |||||
3688 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')", | |||||
3689 | die_offset, name_cstr); | |||||
3690 | } | |||||
3691 | } | |||||
3692 | } | |||||
3693 | ||||||
3694 | if (name_type_mask & eFunctionNameTypeSelector) | |||||
3695 | { | |||||
3696 | if (namespace_decl && *namespace_decl) | |||||
3697 | return 0; // no selectors in namespaces | |||||
3698 | ||||||
3699 | num_matches = m_apple_names_ap->FindByName (name_cstr, die_offsets); | |||||
3700 | // Now make sure these are actually ObjC methods. In this case we can simply look up the name, | |||||
3701 | // and if it is an ObjC method name, we're good. | |||||
3702 | ||||||
3703 | for (uint32_t i = 0; i < num_matches; i++) | |||||
3704 | { | |||||
3705 | const dw_offset_t die_offset = die_offsets[i]; | |||||
3706 | const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||||
3707 | if (die) | |||||
3708 | { | |||||
3709 | const char *die_name = die->GetName(this, dwarf_cu); | |||||
3710 | if (ObjCLanguageRuntime::IsPossibleObjCMethodName(die_name)) | |||||
3711 | { | |||||
3712 | if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine) | |||||
3713 | continue; | |||||
3714 | ||||||
3715 | if (resolved_dies.find(die) == resolved_dies.end()) | |||||
3716 | { | |||||
3717 | if (ResolveFunction (dwarf_cu, die, sc_list)) | |||||
3718 | resolved_dies.insert(die); | |||||
3719 | } | |||||
3720 | } | |||||
3721 | } | |||||
3722 | else | |||||
3723 | { | |||||
3724 | GetObjectFile()->GetModule()->ReportError ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')", | |||||
3725 | die_offset, name_cstr); | |||||
3726 | } | |||||
3727 | } | |||||
3728 | die_offsets.clear(); | |||||
3729 | } | |||||
3730 | ||||||
3731 | if (((name_type_mask & eFunctionNameTypeMethod) && !namespace_decl) || name_type_mask & eFunctionNameTypeBase) | |||||
3732 | { | |||||
3733 | // The apple_names table stores just the "base name" of C++ methods in the table. So we have to | |||||
3734 | // extract the base name, look that up, and if there is any other information in the name we were | |||||
3735 | // passed in we have to post-filter based on that. | |||||
3736 | ||||||
3737 | // FIXME: Arrange the logic above so that we don't calculate the base name twice: | |||||
3738 | num_matches = m_apple_names_ap->FindByName (name_cstr, die_offsets); | |||||
3739 | ||||||
3740 | for (uint32_t i = 0; i < num_matches; i++) | |||||
3741 | { | |||||
3742 | const dw_offset_t die_offset = die_offsets[i]; | |||||
3743 | const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||||
3744 | if (die) | |||||
3745 | { | |||||
3746 | if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine) | |||||
3747 | continue; | |||||
3748 | ||||||
3749 | if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die)) | |||||
3750 | continue; | |||||
3751 | ||||||
3752 | // If we get to here, the die is good, and we should add it: | |||||
3753 | if (resolved_dies.find(die) == resolved_dies.end()) | |||||
3754 | if (ResolveFunction (dwarf_cu, die, sc_list)) | |||||
3755 | { | |||||
3756 | bool keep_die = true; | |||||
3757 | if ((name_type_mask & (eFunctionNameTypeBase|eFunctionNameTypeMethod)) != (eFunctionNameTypeBase|eFunctionNameTypeMethod)) | |||||
3758 | { | |||||
3759 | // We are looking for either basenames or methods, so we need to | |||||
3760 | // trim out the ones we won't want by looking at the type | |||||
3761 | SymbolContext sc; | |||||
3762 | if (sc_list.GetLastContext(sc)) | |||||
3763 | { | |||||
3764 | if (sc.block) | |||||
3765 | { | |||||
3766 | // We have an inlined function | |||||
3767 | } | |||||
3768 | else if (sc.function) | |||||
3769 | { | |||||
3770 | Type *type = sc.function->GetType(); | |||||
3771 | ||||||
3772 | if (type) | |||||
3773 | { | |||||
3774 | clang::DeclContext* decl_ctx = GetClangDeclContextContainingTypeUID (type->GetID()); | |||||
3775 | if (decl_ctx->isRecord()) | |||||
3776 | { | |||||
3777 | if (name_type_mask & eFunctionNameTypeBase) | |||||
3778 | { | |||||
3779 | sc_list.RemoveContextAtIndex(sc_list.GetSize()-1); | |||||
3780 | keep_die = false; | |||||
3781 | } | |||||
3782 | } | |||||
3783 | else | |||||
3784 | { | |||||
3785 | if (name_type_mask & eFunctionNameTypeMethod) | |||||
3786 | { | |||||
3787 | sc_list.RemoveContextAtIndex(sc_list.GetSize()-1); | |||||
3788 | keep_die = false; | |||||
3789 | } | |||||
3790 | } | |||||
3791 | } | |||||
3792 | else | |||||
3793 | { | |||||
3794 | GetObjectFile()->GetModule()->ReportWarning ("function at die offset 0x%8.8x had no function type", | |||||
3795 | die_offset); | |||||
3796 | } | |||||
3797 | } | |||||
3798 | } | |||||
3799 | } | |||||
3800 | if (keep_die) | |||||
3801 | resolved_dies.insert(die); | |||||
3802 | } | |||||
3803 | } | |||||
3804 | else | |||||
3805 | { | |||||
3806 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')", | |||||
3807 | die_offset, name_cstr); | |||||
3808 | } | |||||
3809 | } | |||||
3810 | die_offsets.clear(); | |||||
3811 | } | |||||
3812 | } | |||||
3813 | } | |||||
3814 | else | |||||
3815 | { | |||||
3816 | ||||||
3817 | // Index the DWARF if we haven't already | |||||
3818 | if (!m_indexed) | |||||
3819 | Index (); | |||||
3820 | ||||||
3821 | if (name_type_mask & eFunctionNameTypeFull) | |||||
3822 | { | |||||
3823 | FindFunctions (name, m_function_fullname_index, sc_list); | |||||
3824 | ||||||
3825 | // FIXME Temporary workaround for global/anonymous namespace | |||||
3826 | // functions on FreeBSD and Linux | |||||
3827 | #if defined (__FreeBSD__) || defined (__linux__1) | |||||
3828 | // If we didn't find any functions in the global namespace try | |||||
3829 | // looking in the basename index but ignore any returned | |||||
3830 | // functions that have a namespace (ie. mangled names starting with | |||||
3831 | // '_ZN') but keep functions which have an anonymous namespace | |||||
3832 | if (sc_list.GetSize() == 0) | |||||
3833 | { | |||||
3834 | SymbolContextList temp_sc_list; | |||||
3835 | FindFunctions (name, m_function_basename_index, temp_sc_list); | |||||
3836 | if (!namespace_decl) | |||||
3837 | { | |||||
3838 | SymbolContext sc; | |||||
3839 | for (uint32_t i = 0; i < temp_sc_list.GetSize(); i++) | |||||
3840 | { | |||||
3841 | if (temp_sc_list.GetContextAtIndex(i, sc)) | |||||
3842 | { | |||||
3843 | ConstString mangled_name = sc.GetFunctionName(Mangled::ePreferMangled); | |||||
3844 | ConstString demangled_name = sc.GetFunctionName(Mangled::ePreferDemangled); | |||||
3845 | if (strncmp(mangled_name.GetCString(), "_ZN", 3) || | |||||
3846 | !strncmp(demangled_name.GetCString(), "(anonymous namespace)", 21)) | |||||
3847 | { | |||||
3848 | sc_list.Append(sc); | |||||
3849 | } | |||||
3850 | } | |||||
3851 | } | |||||
3852 | } | |||||
3853 | } | |||||
3854 | #endif | |||||
3855 | } | |||||
3856 | DIEArray die_offsets; | |||||
3857 | DWARFCompileUnit *dwarf_cu = NULL__null; | |||||
3858 | ||||||
3859 | if (name_type_mask & eFunctionNameTypeBase) | |||||
3860 | { | |||||
3861 | uint32_t num_base = m_function_basename_index.Find(name, die_offsets); | |||||
3862 | for (uint32_t i = 0; i < num_base; i++) | |||||
3863 | { | |||||
3864 | const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offsets[i], &dwarf_cu); | |||||
3865 | if (die) | |||||
3866 | { | |||||
3867 | if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine) | |||||
3868 | continue; | |||||
3869 | ||||||
3870 | if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die)) | |||||
3871 | continue; | |||||
3872 | ||||||
3873 | // If we get to here, the die is good, and we should add it: | |||||
3874 | if (resolved_dies.find(die) == resolved_dies.end()) | |||||
3875 | { | |||||
3876 | if (ResolveFunction (dwarf_cu, die, sc_list)) | |||||
3877 | resolved_dies.insert(die); | |||||
3878 | } | |||||
3879 | } | |||||
3880 | } | |||||
3881 | die_offsets.clear(); | |||||
3882 | } | |||||
3883 | ||||||
3884 | if (name_type_mask & eFunctionNameTypeMethod) | |||||
3885 | { | |||||
3886 | if (namespace_decl && *namespace_decl) | |||||
3887 | return 0; // no methods in namespaces | |||||
3888 | ||||||
3889 | uint32_t num_base = m_function_method_index.Find(name, die_offsets); | |||||
3890 | { | |||||
3891 | for (uint32_t i = 0; i < num_base; i++) | |||||
3892 | { | |||||
3893 | const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offsets[i], &dwarf_cu); | |||||
3894 | if (die) | |||||
3895 | { | |||||
3896 | if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine) | |||||
3897 | continue; | |||||
3898 | ||||||
3899 | // If we get to here, the die is good, and we should add it: | |||||
3900 | if (resolved_dies.find(die) == resolved_dies.end()) | |||||
3901 | { | |||||
3902 | if (ResolveFunction (dwarf_cu, die, sc_list)) | |||||
3903 | resolved_dies.insert(die); | |||||
3904 | } | |||||
3905 | } | |||||
3906 | } | |||||
3907 | } | |||||
3908 | die_offsets.clear(); | |||||
3909 | } | |||||
3910 | ||||||
3911 | if ((name_type_mask & eFunctionNameTypeSelector) && (!namespace_decl || !*namespace_decl)) | |||||
3912 | { | |||||
3913 | FindFunctions (name, m_function_selector_index, sc_list); | |||||
3914 | } | |||||
3915 | ||||||
3916 | } | |||||
3917 | ||||||
3918 | // Return the number of variable that were appended to the list | |||||
3919 | const uint32_t num_matches = sc_list.GetSize() - original_size; | |||||
3920 | ||||||
3921 | if (log && num_matches > 0) | |||||
3922 | { | |||||
3923 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
3924 | "SymbolFileDWARF::FindFunctions (name=\"%s\", name_type_mask=0x%x, append=%u, sc_list) => %u", | |||||
3925 | name.GetCString(), | |||||
3926 | name_type_mask, | |||||
3927 | append, | |||||
3928 | num_matches); | |||||
3929 | } | |||||
3930 | return num_matches; | |||||
3931 | } | |||||
3932 | ||||||
3933 | uint32_t | |||||
3934 | SymbolFileDWARF::FindFunctions(const RegularExpression& regex, bool include_inlines, bool append, SymbolContextList& sc_list) | |||||
3935 | { | |||||
3936 | Timer scoped_timer (__PRETTY_FUNCTION__, | |||||
3937 | "SymbolFileDWARF::FindFunctions (regex = '%s')", | |||||
3938 | regex.GetText()); | |||||
3939 | ||||||
3940 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS(1u << 6))); | |||||
3941 | ||||||
3942 | if (log) | |||||
| ||||||
3943 | { | |||||
3944 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
3945 | "SymbolFileDWARF::FindFunctions (regex=\"%s\", append=%u, sc_list)", | |||||
3946 | regex.GetText(), | |||||
3947 | append); | |||||
3948 | } | |||||
3949 | ||||||
3950 | ||||||
3951 | // If we aren't appending the results to this list, then clear the list | |||||
3952 | if (!append) | |||||
3953 | sc_list.Clear(); | |||||
3954 | ||||||
3955 | // Remember how many sc_list are in the list before we search in case | |||||
3956 | // we are appending the results to a variable list. | |||||
3957 | uint32_t original_size = sc_list.GetSize(); | |||||
3958 | ||||||
3959 | if (m_using_apple_tables) | |||||
3960 | { | |||||
3961 | if (m_apple_names_ap.get()) | |||||
3962 | FindFunctions (regex, *m_apple_names_ap, sc_list); | |||||
3963 | } | |||||
3964 | else | |||||
3965 | { | |||||
3966 | // Index the DWARF if we haven't already | |||||
3967 | if (!m_indexed) | |||||
3968 | Index (); | |||||
3969 | ||||||
3970 | FindFunctions (regex, m_function_basename_index, sc_list); | |||||
3971 | ||||||
3972 | FindFunctions (regex, m_function_fullname_index, sc_list); | |||||
3973 | } | |||||
3974 | ||||||
3975 | // Return the number of variable that were appended to the list | |||||
3976 | return sc_list.GetSize() - original_size; | |||||
3977 | } | |||||
3978 | ||||||
3979 | uint32_t | |||||
3980 | SymbolFileDWARF::FindTypes (const SymbolContext& sc, | |||||
3981 | const ConstString &name, | |||||
3982 | const lldb_private::ClangNamespaceDecl *namespace_decl, | |||||
3983 | bool append, | |||||
3984 | uint32_t max_matches, | |||||
3985 | TypeList& types) | |||||
3986 | { | |||||
3987 | DWARFDebugInfo* info = DebugInfo(); | |||||
3988 | if (info == NULL__null) | |||||
3989 | return 0; | |||||
3990 | ||||||
3991 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS(1u << 6))); | |||||
3992 | ||||||
3993 | if (log) | |||||
3994 | { | |||||
3995 | if (namespace_decl) | |||||
3996 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
3997 | "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(%p) \"%s\", append=%u, max_matches=%u, type_list)", | |||||
3998 | name.GetCString(), | |||||
3999 | static_cast<void*>(namespace_decl->GetNamespaceDecl()), | |||||
4000 | namespace_decl->GetQualifiedName().c_str(), | |||||
4001 | append, max_matches); | |||||
4002 | else | |||||
4003 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
4004 | "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(NULL), append=%u, max_matches=%u, type_list)", | |||||
4005 | name.GetCString(), append, | |||||
4006 | max_matches); | |||||
4007 | } | |||||
4008 | ||||||
4009 | // If we aren't appending the results to this list, then clear the list | |||||
4010 | if (!append) | |||||
4011 | types.Clear(); | |||||
4012 | ||||||
4013 | if (!NamespaceDeclMatchesThisSymbolFile(namespace_decl)) | |||||
4014 | return 0; | |||||
4015 | ||||||
4016 | DIEArray die_offsets; | |||||
4017 | ||||||
4018 | if (m_using_apple_tables) | |||||
4019 | { | |||||
4020 | if (m_apple_types_ap.get()) | |||||
4021 | { | |||||
4022 | const char *name_cstr = name.GetCString(); | |||||
4023 | m_apple_types_ap->FindByName (name_cstr, die_offsets); | |||||
4024 | } | |||||
4025 | } | |||||
4026 | else | |||||
4027 | { | |||||
4028 | if (!m_indexed) | |||||
4029 | Index (); | |||||
4030 | ||||||
4031 | m_type_index.Find (name, die_offsets); | |||||
4032 | } | |||||
4033 | ||||||
4034 | const size_t num_die_matches = die_offsets.size(); | |||||
4035 | ||||||
4036 | if (num_die_matches) | |||||
4037 | { | |||||
4038 | const uint32_t initial_types_size = types.GetSize(); | |||||
4039 | DWARFCompileUnit* dwarf_cu = NULL__null; | |||||
4040 | const DWARFDebugInfoEntry* die = NULL__null; | |||||
4041 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
4042 | for (size_t i=0; i<num_die_matches; ++i) | |||||
4043 | { | |||||
4044 | const dw_offset_t die_offset = die_offsets[i]; | |||||
4045 | die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||||
4046 | ||||||
4047 | if (die) | |||||
4048 | { | |||||
4049 | if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die)) | |||||
4050 | continue; | |||||
4051 | ||||||
4052 | Type *matching_type = ResolveType (dwarf_cu, die); | |||||
4053 | if (matching_type) | |||||
4054 | { | |||||
4055 | // We found a type pointer, now find the shared pointer form our type list | |||||
4056 | types.InsertUnique (matching_type->shared_from_this()); | |||||
4057 | if (types.GetSize() >= max_matches) | |||||
4058 | break; | |||||
4059 | } | |||||
4060 | } | |||||
4061 | else | |||||
4062 | { | |||||
4063 | if (m_using_apple_tables) | |||||
4064 | { | |||||
4065 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n", | |||||
4066 | die_offset, name.GetCString()); | |||||
4067 | } | |||||
4068 | } | |||||
4069 | ||||||
4070 | } | |||||
4071 | const uint32_t num_matches = types.GetSize() - initial_types_size; | |||||
4072 | if (log && num_matches) | |||||
4073 | { | |||||
4074 | if (namespace_decl) | |||||
4075 | { | |||||
4076 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
4077 | "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(%p) \"%s\", append=%u, max_matches=%u, type_list) => %u", | |||||
4078 | name.GetCString(), | |||||
4079 | static_cast<void*>(namespace_decl->GetNamespaceDecl()), | |||||
4080 | namespace_decl->GetQualifiedName().c_str(), | |||||
4081 | append, max_matches, | |||||
4082 | num_matches); | |||||
4083 | } | |||||
4084 | else | |||||
4085 | { | |||||
4086 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
4087 | "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(NULL), append=%u, max_matches=%u, type_list) => %u", | |||||
4088 | name.GetCString(), | |||||
4089 | append, max_matches, | |||||
4090 | num_matches); | |||||
4091 | } | |||||
4092 | } | |||||
4093 | return num_matches; | |||||
4094 | } | |||||
4095 | return 0; | |||||
4096 | } | |||||
4097 | ||||||
4098 | ||||||
4099 | ClangNamespaceDecl | |||||
4100 | SymbolFileDWARF::FindNamespace (const SymbolContext& sc, | |||||
4101 | const ConstString &name, | |||||
4102 | const lldb_private::ClangNamespaceDecl *parent_namespace_decl) | |||||
4103 | { | |||||
4104 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS(1u << 6))); | |||||
4105 | ||||||
4106 | if (log) | |||||
4107 | { | |||||
4108 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
4109 | "SymbolFileDWARF::FindNamespace (sc, name=\"%s\")", | |||||
4110 | name.GetCString()); | |||||
4111 | } | |||||
4112 | ||||||
4113 | if (!NamespaceDeclMatchesThisSymbolFile(parent_namespace_decl)) | |||||
4114 | return ClangNamespaceDecl(); | |||||
4115 | ||||||
4116 | ClangNamespaceDecl namespace_decl; | |||||
4117 | DWARFDebugInfo* info = DebugInfo(); | |||||
4118 | if (info) | |||||
4119 | { | |||||
4120 | DIEArray die_offsets; | |||||
4121 | ||||||
4122 | // Index if we already haven't to make sure the compile units | |||||
4123 | // get indexed and make their global DIE index list | |||||
4124 | if (m_using_apple_tables) | |||||
4125 | { | |||||
4126 | if (m_apple_namespaces_ap.get()) | |||||
4127 | { | |||||
4128 | const char *name_cstr = name.GetCString(); | |||||
4129 | m_apple_namespaces_ap->FindByName (name_cstr, die_offsets); | |||||
4130 | } | |||||
4131 | } | |||||
4132 | else | |||||
4133 | { | |||||
4134 | if (!m_indexed) | |||||
4135 | Index (); | |||||
4136 | ||||||
4137 | m_namespace_index.Find (name, die_offsets); | |||||
4138 | } | |||||
4139 | ||||||
4140 | DWARFCompileUnit* dwarf_cu = NULL__null; | |||||
4141 | const DWARFDebugInfoEntry* die = NULL__null; | |||||
4142 | const size_t num_matches = die_offsets.size(); | |||||
4143 | if (num_matches) | |||||
4144 | { | |||||
4145 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
4146 | for (size_t i=0; i<num_matches; ++i) | |||||
4147 | { | |||||
4148 | const dw_offset_t die_offset = die_offsets[i]; | |||||
4149 | die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||||
4150 | ||||||
4151 | if (die) | |||||
4152 | { | |||||
4153 | if (parent_namespace_decl && !DIEIsInNamespace (parent_namespace_decl, dwarf_cu, die)) | |||||
4154 | continue; | |||||
4155 | ||||||
4156 | clang::NamespaceDecl *clang_namespace_decl = ResolveNamespaceDIE (dwarf_cu, die); | |||||
4157 | if (clang_namespace_decl) | |||||
4158 | { | |||||
4159 | namespace_decl.SetASTContext (GetClangASTContext().getASTContext()); | |||||
4160 | namespace_decl.SetNamespaceDecl (clang_namespace_decl); | |||||
4161 | break; | |||||
4162 | } | |||||
4163 | } | |||||
4164 | else | |||||
4165 | { | |||||
4166 | if (m_using_apple_tables) | |||||
4167 | { | |||||
4168 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_namespaces accelerator table had bad die 0x%8.8x for '%s')\n", | |||||
4169 | die_offset, name.GetCString()); | |||||
4170 | } | |||||
4171 | } | |||||
4172 | ||||||
4173 | } | |||||
4174 | } | |||||
4175 | } | |||||
4176 | if (log && namespace_decl.GetNamespaceDecl()) | |||||
4177 | { | |||||
4178 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
4179 | "SymbolFileDWARF::FindNamespace (sc, name=\"%s\") => clang::NamespaceDecl(%p) \"%s\"", | |||||
4180 | name.GetCString(), | |||||
4181 | static_cast<const void*>(namespace_decl.GetNamespaceDecl()), | |||||
4182 | namespace_decl.GetQualifiedName().c_str()); | |||||
4183 | } | |||||
4184 | ||||||
4185 | return namespace_decl; | |||||
4186 | } | |||||
4187 | ||||||
4188 | uint32_t | |||||
4189 | SymbolFileDWARF::FindTypes(std::vector<dw_offset_t> die_offsets, uint32_t max_matches, TypeList& types) | |||||
4190 | { | |||||
4191 | // Remember how many sc_list are in the list before we search in case | |||||
4192 | // we are appending the results to a variable list. | |||||
4193 | uint32_t original_size = types.GetSize(); | |||||
4194 | ||||||
4195 | const uint32_t num_die_offsets = die_offsets.size(); | |||||
4196 | // Parse all of the types we found from the pubtypes matches | |||||
4197 | uint32_t i; | |||||
4198 | uint32_t num_matches = 0; | |||||
4199 | for (i = 0; i < num_die_offsets; ++i) | |||||
4200 | { | |||||
4201 | Type *matching_type = ResolveTypeUID (die_offsets[i]); | |||||
4202 | if (matching_type) | |||||
4203 | { | |||||
4204 | // We found a type pointer, now find the shared pointer form our type list | |||||
4205 | types.InsertUnique (matching_type->shared_from_this()); | |||||
4206 | ++num_matches; | |||||
4207 | if (num_matches >= max_matches) | |||||
4208 | break; | |||||
4209 | } | |||||
4210 | } | |||||
4211 | ||||||
4212 | // Return the number of variable that were appended to the list | |||||
4213 | return types.GetSize() - original_size; | |||||
4214 | } | |||||
4215 | ||||||
4216 | ||||||
4217 | size_t | |||||
4218 | SymbolFileDWARF::ParseChildParameters (const SymbolContext& sc, | |||||
4219 | clang::DeclContext *containing_decl_ctx, | |||||
4220 | DWARFCompileUnit* dwarf_cu, | |||||
4221 | const DWARFDebugInfoEntry *parent_die, | |||||
4222 | bool skip_artificial, | |||||
4223 | bool &is_static, | |||||
4224 | bool &is_variadic, | |||||
4225 | TypeList* type_list, | |||||
4226 | std::vector<ClangASTType>& function_param_types, | |||||
4227 | std::vector<clang::ParmVarDecl*>& function_param_decls, | |||||
4228 | unsigned &type_quals) // , | |||||
4229 | // ClangASTContext::TemplateParameterInfos &template_param_infos)) | |||||
4230 | { | |||||
4231 | if (parent_die == NULL__null) | |||||
4232 | return 0; | |||||
4233 | ||||||
4234 | const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64()); | |||||
4235 | ||||||
4236 | size_t arg_idx = 0; | |||||
4237 | const DWARFDebugInfoEntry *die; | |||||
4238 | for (die = parent_die->GetFirstChild(); die != NULL__null; die = die->GetSibling()) | |||||
4239 | { | |||||
4240 | dw_tag_t tag = die->Tag(); | |||||
4241 | switch (tag) | |||||
4242 | { | |||||
4243 | case DW_TAG_formal_parameter: | |||||
4244 | { | |||||
4245 | DWARFDebugInfoEntry::Attributes attributes; | |||||
4246 | const size_t num_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes); | |||||
4247 | if (num_attributes > 0) | |||||
4248 | { | |||||
4249 | const char *name = NULL__null; | |||||
4250 | Declaration decl; | |||||
4251 | dw_offset_t param_type_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||||
4252 | bool is_artificial = false; | |||||
4253 | // one of None, Auto, Register, Extern, Static, PrivateExtern | |||||
4254 | ||||||
4255 | clang::StorageClass storage = clang::SC_None; | |||||
4256 | uint32_t i; | |||||
4257 | for (i=0; i<num_attributes; ++i) | |||||
4258 | { | |||||
4259 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||||
4260 | DWARFFormValue form_value; | |||||
4261 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||||
4262 | { | |||||
4263 | switch (attr) | |||||
4264 | { | |||||
4265 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||||
4266 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||||
4267 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||||
4268 | case DW_AT_name: name = form_value.AsCString(&get_debug_str_data()); break; | |||||
4269 | case DW_AT_type: param_type_die_offset = form_value.Reference(dwarf_cu); break; | |||||
4270 | case DW_AT_artificial: is_artificial = form_value.Boolean(); break; | |||||
4271 | case DW_AT_location: | |||||
4272 | // if (form_value.BlockData()) | |||||
4273 | // { | |||||
4274 | // const DWARFDataExtractor& debug_info_data = debug_info(); | |||||
4275 | // uint32_t block_length = form_value.Unsigned(); | |||||
4276 | // DWARFDataExtractor location(debug_info_data, form_value.BlockData() - debug_info_data.GetDataStart(), block_length); | |||||
4277 | // } | |||||
4278 | // else | |||||
4279 | // { | |||||
4280 | // } | |||||
4281 | // break; | |||||
4282 | case DW_AT_const_value: | |||||
4283 | case DW_AT_default_value: | |||||
4284 | case DW_AT_description: | |||||
4285 | case DW_AT_endianity: | |||||
4286 | case DW_AT_is_optional: | |||||
4287 | case DW_AT_segment: | |||||
4288 | case DW_AT_variable_parameter: | |||||
4289 | default: | |||||
4290 | case DW_AT_abstract_origin: | |||||
4291 | case DW_AT_sibling: | |||||
4292 | break; | |||||
4293 | } | |||||
4294 | } | |||||
4295 | } | |||||
4296 | ||||||
4297 | bool skip = false; | |||||
4298 | if (skip_artificial) | |||||
4299 | { | |||||
4300 | if (is_artificial) | |||||
4301 | { | |||||
4302 | // In order to determine if a C++ member function is | |||||
4303 | // "const" we have to look at the const-ness of "this"... | |||||
4304 | // Ugly, but that | |||||
4305 | if (arg_idx == 0) | |||||
4306 | { | |||||
4307 | if (DeclKindIsCXXClass(containing_decl_ctx->getDeclKind())) | |||||
4308 | { | |||||
4309 | // Often times compilers omit the "this" name for the | |||||
4310 | // specification DIEs, so we can't rely upon the name | |||||
4311 | // being in the formal parameter DIE... | |||||
4312 | if (name == NULL__null || ::strcmp(name, "this")==0) | |||||
4313 | { | |||||
4314 | Type *this_type = ResolveTypeUID (param_type_die_offset); | |||||
4315 | if (this_type) | |||||
4316 | { | |||||
4317 | uint32_t encoding_mask = this_type->GetEncodingMask(); | |||||
4318 | if (encoding_mask & Type::eEncodingIsPointerUID) | |||||
4319 | { | |||||
4320 | is_static = false; | |||||
4321 | ||||||
4322 | if (encoding_mask & (1u << Type::eEncodingIsConstUID)) | |||||
4323 | type_quals |= clang::Qualifiers::Const; | |||||
4324 | if (encoding_mask & (1u << Type::eEncodingIsVolatileUID)) | |||||
4325 | type_quals |= clang::Qualifiers::Volatile; | |||||
4326 | } | |||||
4327 | } | |||||
4328 | } | |||||
4329 | } | |||||
4330 | } | |||||
4331 | skip = true; | |||||
4332 | } | |||||
4333 | else | |||||
4334 | { | |||||
4335 | ||||||
4336 | // HACK: Objective C formal parameters "self" and "_cmd" | |||||
4337 | // are not marked as artificial in the DWARF... | |||||
4338 | CompileUnit *comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX(4294967295U)); | |||||
4339 | if (comp_unit) | |||||
4340 | { | |||||
4341 | switch (comp_unit->GetLanguage()) | |||||
4342 | { | |||||
4343 | case eLanguageTypeObjC: | |||||
4344 | case eLanguageTypeObjC_plus_plus: | |||||
4345 | if (name && name[0] && (strcmp (name, "self") == 0 || strcmp (name, "_cmd") == 0)) | |||||
4346 | skip = true; | |||||
4347 | break; | |||||
4348 | default: | |||||
4349 | break; | |||||
4350 | } | |||||
4351 | } | |||||
4352 | } | |||||
4353 | } | |||||
4354 | ||||||
4355 | if (!skip) | |||||
4356 | { | |||||
4357 | Type *type = ResolveTypeUID(param_type_die_offset); | |||||
4358 | if (type) | |||||
4359 | { | |||||
4360 | function_param_types.push_back (type->GetClangForwardType()); | |||||
4361 | ||||||
4362 | clang::ParmVarDecl *param_var_decl = GetClangASTContext().CreateParameterDeclaration (name, | |||||
4363 | type->GetClangForwardType(), | |||||
4364 | storage); | |||||
4365 | assert(param_var_decl)((param_var_decl) ? static_cast<void> (0) : __assert_fail ("param_var_decl", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 4365, __PRETTY_FUNCTION__)); | |||||
4366 | function_param_decls.push_back(param_var_decl); | |||||
4367 | ||||||
4368 | GetClangASTContext().SetMetadataAsUserID (param_var_decl, MakeUserID(die->GetOffset())); | |||||
4369 | } | |||||
4370 | } | |||||
4371 | } | |||||
4372 | arg_idx++; | |||||
4373 | } | |||||
4374 | break; | |||||
4375 | ||||||
4376 | case DW_TAG_unspecified_parameters: | |||||
4377 | is_variadic = true; | |||||
4378 | break; | |||||
4379 | ||||||
4380 | case DW_TAG_template_type_parameter: | |||||
4381 | case DW_TAG_template_value_parameter: | |||||
4382 | // The one caller of this was never using the template_param_infos, | |||||
4383 | // and the local variable was taking up a large amount of stack space | |||||
4384 | // in SymbolFileDWARF::ParseType() so this was removed. If we ever need | |||||
4385 | // the template params back, we can add them back. | |||||
4386 | // ParseTemplateDIE (dwarf_cu, die, template_param_infos); | |||||
4387 | break; | |||||
4388 | ||||||
4389 | default: | |||||
4390 | break; | |||||
4391 | } | |||||
4392 | } | |||||
4393 | return arg_idx; | |||||
4394 | } | |||||
4395 | ||||||
4396 | size_t | |||||
4397 | SymbolFileDWARF::ParseChildEnumerators | |||||
4398 | ( | |||||
4399 | const SymbolContext& sc, | |||||
4400 | lldb_private::ClangASTType &clang_type, | |||||
4401 | bool is_signed, | |||||
4402 | uint32_t enumerator_byte_size, | |||||
4403 | DWARFCompileUnit* dwarf_cu, | |||||
4404 | const DWARFDebugInfoEntry *parent_die | |||||
4405 | ) | |||||
4406 | { | |||||
4407 | if (parent_die == NULL__null) | |||||
4408 | return 0; | |||||
4409 | ||||||
4410 | size_t enumerators_added = 0; | |||||
4411 | const DWARFDebugInfoEntry *die; | |||||
4412 | const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64()); | |||||
4413 | ||||||
4414 | for (die = parent_die->GetFirstChild(); die != NULL__null; die = die->GetSibling()) | |||||
4415 | { | |||||
4416 | const dw_tag_t tag = die->Tag(); | |||||
4417 | if (tag == DW_TAG_enumerator) | |||||
4418 | { | |||||
4419 | DWARFDebugInfoEntry::Attributes attributes; | |||||
4420 | const size_t num_child_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes); | |||||
4421 | if (num_child_attributes > 0) | |||||
4422 | { | |||||
4423 | const char *name = NULL__null; | |||||
4424 | bool got_value = false; | |||||
4425 | int64_t enum_value = 0; | |||||
4426 | Declaration decl; | |||||
4427 | ||||||
4428 | uint32_t i; | |||||
4429 | for (i=0; i<num_child_attributes; ++i) | |||||
4430 | { | |||||
4431 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||||
4432 | DWARFFormValue form_value; | |||||
4433 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||||
4434 | { | |||||
4435 | switch (attr) | |||||
4436 | { | |||||
4437 | case DW_AT_const_value: | |||||
4438 | got_value = true; | |||||
4439 | if (is_signed) | |||||
4440 | enum_value = form_value.Signed(); | |||||
4441 | else | |||||
4442 | enum_value = form_value.Unsigned(); | |||||
4443 | break; | |||||
4444 | ||||||
4445 | case DW_AT_name: | |||||
4446 | name = form_value.AsCString(&get_debug_str_data()); | |||||
4447 | break; | |||||
4448 | ||||||
4449 | case DW_AT_description: | |||||
4450 | default: | |||||
4451 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||||
4452 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||||
4453 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||||
4454 | case DW_AT_sibling: | |||||
4455 | break; | |||||
4456 | } | |||||
4457 | } | |||||
4458 | } | |||||
4459 | ||||||
4460 | if (name && name[0] && got_value) | |||||
4461 | { | |||||
4462 | clang_type.AddEnumerationValueToEnumerationType (clang_type.GetEnumerationIntegerType(), | |||||
4463 | decl, | |||||
4464 | name, | |||||
4465 | enum_value, | |||||
4466 | enumerator_byte_size * 8); | |||||
4467 | ++enumerators_added; | |||||
4468 | } | |||||
4469 | } | |||||
4470 | } | |||||
4471 | } | |||||
4472 | return enumerators_added; | |||||
4473 | } | |||||
4474 | ||||||
4475 | void | |||||
4476 | SymbolFileDWARF::ParseChildArrayInfo | |||||
4477 | ( | |||||
4478 | const SymbolContext& sc, | |||||
4479 | DWARFCompileUnit* dwarf_cu, | |||||
4480 | const DWARFDebugInfoEntry *parent_die, | |||||
4481 | int64_t& first_index, | |||||
4482 | std::vector<uint64_t>& element_orders, | |||||
4483 | uint32_t& byte_stride, | |||||
4484 | uint32_t& bit_stride | |||||
4485 | ) | |||||
4486 | { | |||||
4487 | if (parent_die == NULL__null) | |||||
4488 | return; | |||||
4489 | ||||||
4490 | const DWARFDebugInfoEntry *die; | |||||
4491 | const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64()); | |||||
4492 | for (die = parent_die->GetFirstChild(); die != NULL__null; die = die->GetSibling()) | |||||
4493 | { | |||||
4494 | const dw_tag_t tag = die->Tag(); | |||||
4495 | switch (tag) | |||||
4496 | { | |||||
4497 | case DW_TAG_subrange_type: | |||||
4498 | { | |||||
4499 | DWARFDebugInfoEntry::Attributes attributes; | |||||
4500 | const size_t num_child_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes); | |||||
4501 | if (num_child_attributes > 0) | |||||
4502 | { | |||||
4503 | uint64_t num_elements = 0; | |||||
4504 | uint64_t lower_bound = 0; | |||||
4505 | uint64_t upper_bound = 0; | |||||
4506 | bool upper_bound_valid = false; | |||||
4507 | uint32_t i; | |||||
4508 | for (i=0; i<num_child_attributes; ++i) | |||||
4509 | { | |||||
4510 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||||
4511 | DWARFFormValue form_value; | |||||
4512 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||||
4513 | { | |||||
4514 | switch (attr) | |||||
4515 | { | |||||
4516 | case DW_AT_name: | |||||
4517 | break; | |||||
4518 | ||||||
4519 | case DW_AT_count: | |||||
4520 | num_elements = form_value.Unsigned(); | |||||
4521 | break; | |||||
4522 | ||||||
4523 | case DW_AT_bit_stride: | |||||
4524 | bit_stride = form_value.Unsigned(); | |||||
4525 | break; | |||||
4526 | ||||||
4527 | case DW_AT_byte_stride: | |||||
4528 | byte_stride = form_value.Unsigned(); | |||||
4529 | break; | |||||
4530 | ||||||
4531 | case DW_AT_lower_bound: | |||||
4532 | lower_bound = form_value.Unsigned(); | |||||
4533 | break; | |||||
4534 | ||||||
4535 | case DW_AT_upper_bound: | |||||
4536 | upper_bound_valid = true; | |||||
4537 | upper_bound = form_value.Unsigned(); | |||||
4538 | break; | |||||
4539 | ||||||
4540 | default: | |||||
4541 | case DW_AT_abstract_origin: | |||||
4542 | case DW_AT_accessibility: | |||||
4543 | case DW_AT_allocated: | |||||
4544 | case DW_AT_associated: | |||||
4545 | case DW_AT_data_location: | |||||
4546 | case DW_AT_declaration: | |||||
4547 | case DW_AT_description: | |||||
4548 | case DW_AT_sibling: | |||||
4549 | case DW_AT_threads_scaled: | |||||
4550 | case DW_AT_type: | |||||
4551 | case DW_AT_visibility: | |||||
4552 | break; | |||||
4553 | } | |||||
4554 | } | |||||
4555 | } | |||||
4556 | ||||||
4557 | if (num_elements == 0) | |||||
4558 | { | |||||
4559 | if (upper_bound_valid && upper_bound >= lower_bound) | |||||
4560 | num_elements = upper_bound - lower_bound + 1; | |||||
4561 | } | |||||
4562 | ||||||
4563 | element_orders.push_back (num_elements); | |||||
4564 | } | |||||
4565 | } | |||||
4566 | break; | |||||
4567 | } | |||||
4568 | } | |||||
4569 | } | |||||
4570 | ||||||
4571 | TypeSP | |||||
4572 | SymbolFileDWARF::GetTypeForDIE (DWARFCompileUnit *dwarf_cu, const DWARFDebugInfoEntry* die) | |||||
4573 | { | |||||
4574 | TypeSP type_sp; | |||||
4575 | if (die != NULL__null) | |||||
4576 | { | |||||
4577 | assert(dwarf_cu != NULL)((dwarf_cu != __null) ? static_cast<void> (0) : __assert_fail ("dwarf_cu != __null", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 4577, __PRETTY_FUNCTION__)); | |||||
4578 | Type *type_ptr = m_die_to_type.lookup (die); | |||||
4579 | if (type_ptr == NULL__null) | |||||
4580 | { | |||||
4581 | CompileUnit* lldb_cu = GetCompUnitForDWARFCompUnit(dwarf_cu); | |||||
4582 | assert (lldb_cu)((lldb_cu) ? static_cast<void> (0) : __assert_fail ("lldb_cu" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 4582, __PRETTY_FUNCTION__)); | |||||
4583 | SymbolContext sc(lldb_cu); | |||||
4584 | type_sp = ParseType(sc, dwarf_cu, die, NULL__null); | |||||
4585 | } | |||||
4586 | else if (type_ptr != DIE_IS_BEING_PARSED((lldb_private::Type*)1)) | |||||
4587 | { | |||||
4588 | // Grab the existing type from the master types lists | |||||
4589 | type_sp = type_ptr->shared_from_this(); | |||||
4590 | } | |||||
4591 | ||||||
4592 | } | |||||
4593 | return type_sp; | |||||
4594 | } | |||||
4595 | ||||||
4596 | clang::DeclContext * | |||||
4597 | SymbolFileDWARF::GetClangDeclContextContainingDIEOffset (dw_offset_t die_offset) | |||||
4598 | { | |||||
4599 | if (die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||||
4600 | { | |||||
4601 | DWARFCompileUnitSP cu_sp; | |||||
4602 | const DWARFDebugInfoEntry* die = DebugInfo()->GetDIEPtr(die_offset, &cu_sp); | |||||
4603 | return GetClangDeclContextContainingDIE (cu_sp.get(), die, NULL__null); | |||||
4604 | } | |||||
4605 | return NULL__null; | |||||
4606 | } | |||||
4607 | ||||||
4608 | clang::DeclContext * | |||||
4609 | SymbolFileDWARF::GetClangDeclContextForDIEOffset (const SymbolContext &sc, dw_offset_t die_offset) | |||||
4610 | { | |||||
4611 | if (die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||||
4612 | { | |||||
4613 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
4614 | if (debug_info) | |||||
4615 | { | |||||
4616 | DWARFCompileUnitSP cu_sp; | |||||
4617 | const DWARFDebugInfoEntry* die = debug_info->GetDIEPtr(die_offset, &cu_sp); | |||||
4618 | if (die) | |||||
4619 | return GetClangDeclContextForDIE (sc, cu_sp.get(), die); | |||||
4620 | } | |||||
4621 | } | |||||
4622 | return NULL__null; | |||||
4623 | } | |||||
4624 | ||||||
4625 | clang::NamespaceDecl * | |||||
4626 | SymbolFileDWARF::ResolveNamespaceDIE (DWARFCompileUnit *dwarf_cu, const DWARFDebugInfoEntry *die) | |||||
4627 | { | |||||
4628 | if (die && die->Tag() == DW_TAG_namespace) | |||||
4629 | { | |||||
4630 | // See if we already parsed this namespace DIE and associated it with a | |||||
4631 | // uniqued namespace declaration | |||||
4632 | clang::NamespaceDecl *namespace_decl = static_cast<clang::NamespaceDecl *>(m_die_to_decl_ctx[die]); | |||||
4633 | if (namespace_decl) | |||||
4634 | return namespace_decl; | |||||
4635 | else | |||||
4636 | { | |||||
4637 | const char *namespace_name = die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_name, NULL__null); | |||||
4638 | clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, NULL__null); | |||||
4639 | namespace_decl = GetClangASTContext().GetUniqueNamespaceDeclaration (namespace_name, containing_decl_ctx); | |||||
4640 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO(1u << 1))); | |||||
4641 | if (log) | |||||
4642 | { | |||||
4643 | if (namespace_name) | |||||
4644 | { | |||||
4645 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
4646 | "ASTContext => %p: 0x%8.8" PRIx64"l" "x" ": DW_TAG_namespace with DW_AT_name(\"%s\") => clang::NamespaceDecl *%p (original = %p)", | |||||
4647 | static_cast<void*>(GetClangASTContext().getASTContext()), | |||||
4648 | MakeUserID(die->GetOffset()), | |||||
4649 | namespace_name, | |||||
4650 | static_cast<void*>(namespace_decl), | |||||
4651 | static_cast<void*>(namespace_decl->getOriginalNamespace())); | |||||
4652 | } | |||||
4653 | else | |||||
4654 | { | |||||
4655 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
4656 | "ASTContext => %p: 0x%8.8" PRIx64"l" "x" ": DW_TAG_namespace (anonymous) => clang::NamespaceDecl *%p (original = %p)", | |||||
4657 | static_cast<void*>(GetClangASTContext().getASTContext()), | |||||
4658 | MakeUserID(die->GetOffset()), | |||||
4659 | static_cast<void*>(namespace_decl), | |||||
4660 | static_cast<void*>(namespace_decl->getOriginalNamespace())); | |||||
4661 | } | |||||
4662 | } | |||||
4663 | ||||||
4664 | if (namespace_decl) | |||||
4665 | LinkDeclContextToDIE((clang::DeclContext*)namespace_decl, die); | |||||
4666 | return namespace_decl; | |||||
4667 | } | |||||
4668 | } | |||||
4669 | return NULL__null; | |||||
4670 | } | |||||
4671 | ||||||
4672 | clang::DeclContext * | |||||
4673 | SymbolFileDWARF::GetClangDeclContextForDIE (const SymbolContext &sc, DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die) | |||||
4674 | { | |||||
4675 | clang::DeclContext *clang_decl_ctx = GetCachedClangDeclContextForDIE (die); | |||||
4676 | if (clang_decl_ctx) | |||||
4677 | return clang_decl_ctx; | |||||
4678 | // If this DIE has a specification, or an abstract origin, then trace to those. | |||||
4679 | ||||||
4680 | dw_offset_t die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_specification, DW_INVALID_OFFSET(~(dw_offset_t)0)); | |||||
4681 | if (die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||||
4682 | return GetClangDeclContextForDIEOffset (sc, die_offset); | |||||
4683 | ||||||
4684 | die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_abstract_origin, DW_INVALID_OFFSET(~(dw_offset_t)0)); | |||||
4685 | if (die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||||
4686 | return GetClangDeclContextForDIEOffset (sc, die_offset); | |||||
4687 | ||||||
4688 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO(1u << 1))); | |||||
4689 | if (log) | |||||
4690 | GetObjectFile()->GetModule()->LogMessage(log, "SymbolFileDWARF::GetClangDeclContextForDIE (die = 0x%8.8x) %s '%s'", die->GetOffset(), DW_TAG_value_to_name(die->Tag()), die->GetName(this, cu)); | |||||
4691 | // This is the DIE we want. Parse it, then query our map. | |||||
4692 | bool assert_not_being_parsed = true; | |||||
4693 | ResolveTypeUID (cu, die, assert_not_being_parsed); | |||||
4694 | ||||||
4695 | clang_decl_ctx = GetCachedClangDeclContextForDIE (die); | |||||
4696 | ||||||
4697 | return clang_decl_ctx; | |||||
4698 | } | |||||
4699 | ||||||
4700 | clang::DeclContext * | |||||
4701 | SymbolFileDWARF::GetClangDeclContextContainingDIE (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die, const DWARFDebugInfoEntry **decl_ctx_die_copy) | |||||
4702 | { | |||||
4703 | if (m_clang_tu_decl == NULL__null) | |||||
4704 | m_clang_tu_decl = GetClangASTContext().getASTContext()->getTranslationUnitDecl(); | |||||
4705 | ||||||
4706 | const DWARFDebugInfoEntry *decl_ctx_die = GetDeclContextDIEContainingDIE (cu, die); | |||||
4707 | ||||||
4708 | if (decl_ctx_die_copy) | |||||
4709 | *decl_ctx_die_copy = decl_ctx_die; | |||||
4710 | ||||||
4711 | if (decl_ctx_die) | |||||
4712 | { | |||||
4713 | ||||||
4714 | DIEToDeclContextMap::iterator pos = m_die_to_decl_ctx.find (decl_ctx_die); | |||||
4715 | if (pos != m_die_to_decl_ctx.end()) | |||||
4716 | return pos->second; | |||||
4717 | ||||||
4718 | switch (decl_ctx_die->Tag()) | |||||
4719 | { | |||||
4720 | case DW_TAG_compile_unit: | |||||
4721 | return m_clang_tu_decl; | |||||
4722 | ||||||
4723 | case DW_TAG_namespace: | |||||
4724 | return ResolveNamespaceDIE (cu, decl_ctx_die); | |||||
4725 | break; | |||||
4726 | ||||||
4727 | case DW_TAG_structure_type: | |||||
4728 | case DW_TAG_union_type: | |||||
4729 | case DW_TAG_class_type: | |||||
4730 | { | |||||
4731 | Type* type = ResolveType (cu, decl_ctx_die); | |||||
4732 | if (type) | |||||
4733 | { | |||||
4734 | clang::DeclContext *decl_ctx = type->GetClangForwardType().GetDeclContextForType (); | |||||
4735 | if (decl_ctx) | |||||
4736 | { | |||||
4737 | LinkDeclContextToDIE (decl_ctx, decl_ctx_die); | |||||
4738 | if (decl_ctx) | |||||
4739 | return decl_ctx; | |||||
4740 | } | |||||
4741 | } | |||||
4742 | } | |||||
4743 | break; | |||||
4744 | ||||||
4745 | default: | |||||
4746 | break; | |||||
4747 | } | |||||
4748 | } | |||||
4749 | return m_clang_tu_decl; | |||||
4750 | } | |||||
4751 | ||||||
4752 | ||||||
4753 | const DWARFDebugInfoEntry * | |||||
4754 | SymbolFileDWARF::GetDeclContextDIEContainingDIE (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die) | |||||
4755 | { | |||||
4756 | if (cu && die) | |||||
4757 | { | |||||
4758 | const DWARFDebugInfoEntry * const decl_die = die; | |||||
4759 | ||||||
4760 | while (die != NULL__null) | |||||
4761 | { | |||||
4762 | // If this is the original DIE that we are searching for a declaration | |||||
4763 | // for, then don't look in the cache as we don't want our own decl | |||||
4764 | // context to be our decl context... | |||||
4765 | if (decl_die != die) | |||||
4766 | { | |||||
4767 | switch (die->Tag()) | |||||
4768 | { | |||||
4769 | case DW_TAG_compile_unit: | |||||
4770 | case DW_TAG_namespace: | |||||
4771 | case DW_TAG_structure_type: | |||||
4772 | case DW_TAG_union_type: | |||||
4773 | case DW_TAG_class_type: | |||||
4774 | return die; | |||||
4775 | ||||||
4776 | default: | |||||
4777 | break; | |||||
4778 | } | |||||
4779 | } | |||||
4780 | ||||||
4781 | dw_offset_t die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_specification, DW_INVALID_OFFSET(~(dw_offset_t)0)); | |||||
4782 | if (die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||||
4783 | { | |||||
4784 | DWARFCompileUnit *spec_cu = cu; | |||||
4785 | const DWARFDebugInfoEntry *spec_die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &spec_cu); | |||||
4786 | const DWARFDebugInfoEntry *spec_die_decl_ctx_die = GetDeclContextDIEContainingDIE (spec_cu, spec_die); | |||||
4787 | if (spec_die_decl_ctx_die) | |||||
4788 | return spec_die_decl_ctx_die; | |||||
4789 | } | |||||
4790 | ||||||
4791 | die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_abstract_origin, DW_INVALID_OFFSET(~(dw_offset_t)0)); | |||||
4792 | if (die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||||
4793 | { | |||||
4794 | DWARFCompileUnit *abs_cu = cu; | |||||
4795 | const DWARFDebugInfoEntry *abs_die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &abs_cu); | |||||
4796 | const DWARFDebugInfoEntry *abs_die_decl_ctx_die = GetDeclContextDIEContainingDIE (abs_cu, abs_die); | |||||
4797 | if (abs_die_decl_ctx_die) | |||||
4798 | return abs_die_decl_ctx_die; | |||||
4799 | } | |||||
4800 | ||||||
4801 | die = die->GetParent(); | |||||
4802 | } | |||||
4803 | } | |||||
4804 | return NULL__null; | |||||
4805 | } | |||||
4806 | ||||||
4807 | ||||||
4808 | Symbol * | |||||
4809 | SymbolFileDWARF::GetObjCClassSymbol (const ConstString &objc_class_name) | |||||
4810 | { | |||||
4811 | Symbol *objc_class_symbol = NULL__null; | |||||
4812 | if (m_obj_file) | |||||
4813 | { | |||||
4814 | Symtab *symtab = m_obj_file->GetSymtab (); | |||||
4815 | if (symtab) | |||||
4816 | { | |||||
4817 | objc_class_symbol = symtab->FindFirstSymbolWithNameAndType (objc_class_name, | |||||
4818 | eSymbolTypeObjCClass, | |||||
4819 | Symtab::eDebugNo, | |||||
4820 | Symtab::eVisibilityAny); | |||||
4821 | } | |||||
4822 | } | |||||
4823 | return objc_class_symbol; | |||||
4824 | } | |||||
4825 | ||||||
4826 | // Some compilers don't emit the DW_AT_APPLE_objc_complete_type attribute. If they don't | |||||
4827 | // then we can end up looking through all class types for a complete type and never find | |||||
4828 | // the full definition. We need to know if this attribute is supported, so we determine | |||||
4829 | // this here and cache th result. We also need to worry about the debug map DWARF file | |||||
4830 | // if we are doing darwin DWARF in .o file debugging. | |||||
4831 | bool | |||||
4832 | SymbolFileDWARF::Supports_DW_AT_APPLE_objc_complete_type (DWARFCompileUnit *cu) | |||||
4833 | { | |||||
4834 | if (m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolCalculate) | |||||
4835 | { | |||||
4836 | m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolNo; | |||||
4837 | if (cu && cu->Supports_DW_AT_APPLE_objc_complete_type()) | |||||
4838 | m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolYes; | |||||
4839 | else | |||||
4840 | { | |||||
4841 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
4842 | const uint32_t num_compile_units = GetNumCompileUnits(); | |||||
4843 | for (uint32_t cu_idx = 0; cu_idx < num_compile_units; ++cu_idx) | |||||
4844 | { | |||||
4845 | DWARFCompileUnit* dwarf_cu = debug_info->GetCompileUnitAtIndex(cu_idx); | |||||
4846 | if (dwarf_cu != cu && dwarf_cu->Supports_DW_AT_APPLE_objc_complete_type()) | |||||
4847 | { | |||||
4848 | m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolYes; | |||||
4849 | break; | |||||
4850 | } | |||||
4851 | } | |||||
4852 | } | |||||
4853 | if (m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolNo && GetDebugMapSymfile ()) | |||||
4854 | return m_debug_map_symfile->Supports_DW_AT_APPLE_objc_complete_type (this); | |||||
4855 | } | |||||
4856 | return m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolYes; | |||||
4857 | } | |||||
4858 | ||||||
4859 | // This function can be used when a DIE is found that is a forward declaration | |||||
4860 | // DIE and we want to try and find a type that has the complete definition. | |||||
4861 | TypeSP | |||||
4862 | SymbolFileDWARF::FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry *die, | |||||
4863 | const ConstString &type_name, | |||||
4864 | bool must_be_implementation) | |||||
4865 | { | |||||
4866 | ||||||
4867 | TypeSP type_sp; | |||||
4868 | ||||||
4869 | if (!type_name || (must_be_implementation && !GetObjCClassSymbol (type_name))) | |||||
4870 | return type_sp; | |||||
4871 | ||||||
4872 | DIEArray die_offsets; | |||||
4873 | ||||||
4874 | if (m_using_apple_tables) | |||||
4875 | { | |||||
4876 | if (m_apple_types_ap.get()) | |||||
4877 | { | |||||
4878 | const char *name_cstr = type_name.GetCString(); | |||||
4879 | m_apple_types_ap->FindCompleteObjCClassByName (name_cstr, die_offsets, must_be_implementation); | |||||
4880 | } | |||||
4881 | } | |||||
4882 | else | |||||
4883 | { | |||||
4884 | if (!m_indexed) | |||||
4885 | Index (); | |||||
4886 | ||||||
4887 | m_type_index.Find (type_name, die_offsets); | |||||
4888 | } | |||||
4889 | ||||||
4890 | const size_t num_matches = die_offsets.size(); | |||||
4891 | ||||||
4892 | DWARFCompileUnit* type_cu = NULL__null; | |||||
4893 | const DWARFDebugInfoEntry* type_die = NULL__null; | |||||
4894 | if (num_matches) | |||||
4895 | { | |||||
4896 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
4897 | for (size_t i=0; i<num_matches; ++i) | |||||
4898 | { | |||||
4899 | const dw_offset_t die_offset = die_offsets[i]; | |||||
4900 | type_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &type_cu); | |||||
4901 | ||||||
4902 | if (type_die) | |||||
4903 | { | |||||
4904 | bool try_resolving_type = false; | |||||
4905 | ||||||
4906 | // Don't try and resolve the DIE we are looking for with the DIE itself! | |||||
4907 | if (type_die != die) | |||||
4908 | { | |||||
4909 | switch (type_die->Tag()) | |||||
4910 | { | |||||
4911 | case DW_TAG_class_type: | |||||
4912 | case DW_TAG_structure_type: | |||||
4913 | try_resolving_type = true; | |||||
4914 | break; | |||||
4915 | default: | |||||
4916 | break; | |||||
4917 | } | |||||
4918 | } | |||||
4919 | ||||||
4920 | if (try_resolving_type) | |||||
4921 | { | |||||
4922 | if (must_be_implementation && type_cu->Supports_DW_AT_APPLE_objc_complete_type()) | |||||
4923 | try_resolving_type = type_die->GetAttributeValueAsUnsigned (this, type_cu, DW_AT_APPLE_objc_complete_type, 0); | |||||
4924 | ||||||
4925 | if (try_resolving_type) | |||||
4926 | { | |||||
4927 | Type *resolved_type = ResolveType (type_cu, type_die, false); | |||||
4928 | if (resolved_type && resolved_type != DIE_IS_BEING_PARSED((lldb_private::Type*)1)) | |||||
4929 | { | |||||
4930 | DEBUG_PRINTF ("resolved 0x%8.8" PRIx64 " from %s to 0x%8.8" PRIx64 " (cu 0x%8.8" PRIx64 ")\n", | |||||
4931 | MakeUserID(die->GetOffset()), | |||||
4932 | m_obj_file->GetFileSpec().GetFilename().AsCString(), | |||||
4933 | MakeUserID(type_die->GetOffset()), | |||||
4934 | MakeUserID(type_cu->GetOffset())); | |||||
4935 | ||||||
4936 | if (die) | |||||
4937 | m_die_to_type[die] = resolved_type; | |||||
4938 | type_sp = resolved_type->shared_from_this(); | |||||
4939 | break; | |||||
4940 | } | |||||
4941 | } | |||||
4942 | } | |||||
4943 | } | |||||
4944 | else | |||||
4945 | { | |||||
4946 | if (m_using_apple_tables) | |||||
4947 | { | |||||
4948 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n", | |||||
4949 | die_offset, type_name.GetCString()); | |||||
4950 | } | |||||
4951 | } | |||||
4952 | ||||||
4953 | } | |||||
4954 | } | |||||
4955 | return type_sp; | |||||
4956 | } | |||||
4957 | ||||||
4958 | ||||||
4959 | //---------------------------------------------------------------------- | |||||
4960 | // This function helps to ensure that the declaration contexts match for | |||||
4961 | // two different DIEs. Often times debug information will refer to a | |||||
4962 | // forward declaration of a type (the equivalent of "struct my_struct;". | |||||
4963 | // There will often be a declaration of that type elsewhere that has the | |||||
4964 | // full definition. When we go looking for the full type "my_struct", we | |||||
4965 | // will find one or more matches in the accelerator tables and we will | |||||
4966 | // then need to make sure the type was in the same declaration context | |||||
4967 | // as the original DIE. This function can efficiently compare two DIEs | |||||
4968 | // and will return true when the declaration context matches, and false | |||||
4969 | // when they don't. | |||||
4970 | //---------------------------------------------------------------------- | |||||
4971 | bool | |||||
4972 | SymbolFileDWARF::DIEDeclContextsMatch (DWARFCompileUnit* cu1, const DWARFDebugInfoEntry *die1, | |||||
4973 | DWARFCompileUnit* cu2, const DWARFDebugInfoEntry *die2) | |||||
4974 | { | |||||
4975 | if (die1 == die2) | |||||
4976 | return true; | |||||
4977 | ||||||
4978 | #if defined (LLDB_CONFIGURATION_DEBUG) | |||||
4979 | // You can't and shouldn't call this function with a compile unit from | |||||
4980 | // two different SymbolFileDWARF instances. | |||||
4981 | assert (DebugInfo()->ContainsCompileUnit (cu1))((DebugInfo()->ContainsCompileUnit (cu1)) ? static_cast< void> (0) : __assert_fail ("DebugInfo()->ContainsCompileUnit (cu1)" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 4981, __PRETTY_FUNCTION__)); | |||||
4982 | assert (DebugInfo()->ContainsCompileUnit (cu2))((DebugInfo()->ContainsCompileUnit (cu2)) ? static_cast< void> (0) : __assert_fail ("DebugInfo()->ContainsCompileUnit (cu2)" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 4982, __PRETTY_FUNCTION__)); | |||||
4983 | #endif | |||||
4984 | ||||||
4985 | DWARFDIECollection decl_ctx_1; | |||||
4986 | DWARFDIECollection decl_ctx_2; | |||||
4987 | //The declaration DIE stack is a stack of the declaration context | |||||
4988 | // DIEs all the way back to the compile unit. If a type "T" is | |||||
4989 | // declared inside a class "B", and class "B" is declared inside | |||||
4990 | // a class "A" and class "A" is in a namespace "lldb", and the | |||||
4991 | // namespace is in a compile unit, there will be a stack of DIEs: | |||||
4992 | // | |||||
4993 | // [0] DW_TAG_class_type for "B" | |||||
4994 | // [1] DW_TAG_class_type for "A" | |||||
4995 | // [2] DW_TAG_namespace for "lldb" | |||||
4996 | // [3] DW_TAG_compile_unit for the source file. | |||||
4997 | // | |||||
4998 | // We grab both contexts and make sure that everything matches | |||||
4999 | // all the way back to the compiler unit. | |||||
5000 | ||||||
5001 | // First lets grab the decl contexts for both DIEs | |||||
5002 | die1->GetDeclContextDIEs (this, cu1, decl_ctx_1); | |||||
5003 | die2->GetDeclContextDIEs (this, cu2, decl_ctx_2); | |||||
5004 | // Make sure the context arrays have the same size, otherwise | |||||
5005 | // we are done | |||||
5006 | const size_t count1 = decl_ctx_1.Size(); | |||||
5007 | const size_t count2 = decl_ctx_2.Size(); | |||||
5008 | if (count1 != count2) | |||||
5009 | return false; | |||||
5010 | ||||||
5011 | // Make sure the DW_TAG values match all the way back up the | |||||
5012 | // compile unit. If they don't, then we are done. | |||||
5013 | const DWARFDebugInfoEntry *decl_ctx_die1; | |||||
5014 | const DWARFDebugInfoEntry *decl_ctx_die2; | |||||
5015 | size_t i; | |||||
5016 | for (i=0; i<count1; i++) | |||||
5017 | { | |||||
5018 | decl_ctx_die1 = decl_ctx_1.GetDIEPtrAtIndex (i); | |||||
5019 | decl_ctx_die2 = decl_ctx_2.GetDIEPtrAtIndex (i); | |||||
5020 | if (decl_ctx_die1->Tag() != decl_ctx_die2->Tag()) | |||||
5021 | return false; | |||||
5022 | } | |||||
5023 | #if defined LLDB_CONFIGURATION_DEBUG | |||||
5024 | ||||||
5025 | // Make sure the top item in the decl context die array is always | |||||
5026 | // DW_TAG_compile_unit. If it isn't then something went wrong in | |||||
5027 | // the DWARFDebugInfoEntry::GetDeclContextDIEs() function... | |||||
5028 | assert (decl_ctx_1.GetDIEPtrAtIndex (count1 - 1)->Tag() == DW_TAG_compile_unit)((decl_ctx_1.GetDIEPtrAtIndex (count1 - 1)->Tag() == DW_TAG_compile_unit ) ? static_cast<void> (0) : __assert_fail ("decl_ctx_1.GetDIEPtrAtIndex (count1 - 1)->Tag() == DW_TAG_compile_unit" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 5028, __PRETTY_FUNCTION__)); | |||||
5029 | ||||||
5030 | #endif | |||||
5031 | // Always skip the compile unit when comparing by only iterating up to | |||||
5032 | // "count - 1". Here we compare the names as we go. | |||||
5033 | for (i=0; i<count1 - 1; i++) | |||||
5034 | { | |||||
5035 | decl_ctx_die1 = decl_ctx_1.GetDIEPtrAtIndex (i); | |||||
5036 | decl_ctx_die2 = decl_ctx_2.GetDIEPtrAtIndex (i); | |||||
5037 | const char *name1 = decl_ctx_die1->GetName(this, cu1); | |||||
5038 | const char *name2 = decl_ctx_die2->GetName(this, cu2); | |||||
5039 | // If the string was from a DW_FORM_strp, then the pointer will often | |||||
5040 | // be the same! | |||||
5041 | if (name1 == name2) | |||||
5042 | continue; | |||||
5043 | ||||||
5044 | // Name pointers are not equal, so only compare the strings | |||||
5045 | // if both are not NULL. | |||||
5046 | if (name1 && name2) | |||||
5047 | { | |||||
5048 | // If the strings don't compare, we are done... | |||||
5049 | if (strcmp(name1, name2) != 0) | |||||
5050 | return false; | |||||
5051 | } | |||||
5052 | else | |||||
5053 | { | |||||
5054 | // One name was NULL while the other wasn't | |||||
5055 | return false; | |||||
5056 | } | |||||
5057 | } | |||||
5058 | // We made it through all of the checks and the declaration contexts | |||||
5059 | // are equal. | |||||
5060 | return true; | |||||
5061 | } | |||||
5062 | ||||||
5063 | // This function can be used when a DIE is found that is a forward declaration | |||||
5064 | // DIE and we want to try and find a type that has the complete definition. | |||||
5065 | // "cu" and "die" must be from this SymbolFileDWARF | |||||
5066 | TypeSP | |||||
5067 | SymbolFileDWARF::FindDefinitionTypeForDIE (DWARFCompileUnit* cu, | |||||
5068 | const DWARFDebugInfoEntry *die, | |||||
5069 | const ConstString &type_name) | |||||
5070 | { | |||||
5071 | TypeSP type_sp; | |||||
5072 | ||||||
5073 | #if defined (LLDB_CONFIGURATION_DEBUG) | |||||
5074 | // You can't and shouldn't call this function with a compile unit from | |||||
5075 | // another SymbolFileDWARF instance. | |||||
5076 | assert (DebugInfo()->ContainsCompileUnit (cu))((DebugInfo()->ContainsCompileUnit (cu)) ? static_cast< void> (0) : __assert_fail ("DebugInfo()->ContainsCompileUnit (cu)" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 5076, __PRETTY_FUNCTION__)); | |||||
5077 | #endif | |||||
5078 | ||||||
5079 | if (cu == NULL__null || die == NULL__null || !type_name) | |||||
5080 | return type_sp; | |||||
5081 | ||||||
5082 | std::string qualified_name; | |||||
5083 | ||||||
5084 | Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_TYPE_COMPLETION(1u << 7)|DWARF_LOG_LOOKUPS(1u << 6))); | |||||
5085 | if (log) | |||||
5086 | { | |||||
5087 | die->GetQualifiedName(this, cu, qualified_name); | |||||
5088 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
5089 | "SymbolFileDWARF::FindDefinitionTypeForDIE(die=0x%8.8x (%s), name='%s')", | |||||
5090 | die->GetOffset(), | |||||
5091 | qualified_name.c_str(), | |||||
5092 | type_name.GetCString()); | |||||
5093 | } | |||||
5094 | ||||||
5095 | DIEArray die_offsets; | |||||
5096 | ||||||
5097 | if (m_using_apple_tables) | |||||
5098 | { | |||||
5099 | if (m_apple_types_ap.get()) | |||||
5100 | { | |||||
5101 | const bool has_tag = m_apple_types_ap->GetHeader().header_data.ContainsAtom (DWARFMappedHash::eAtomTypeTag); | |||||
5102 | const bool has_qualified_name_hash = m_apple_types_ap->GetHeader().header_data.ContainsAtom (DWARFMappedHash::eAtomTypeQualNameHash); | |||||
5103 | if (has_tag && has_qualified_name_hash) | |||||
5104 | { | |||||
5105 | if (qualified_name.empty()) | |||||
5106 | die->GetQualifiedName(this, cu, qualified_name); | |||||
5107 | ||||||
5108 | const uint32_t qualified_name_hash = MappedHash::HashStringUsingDJB (qualified_name.c_str()); | |||||
5109 | if (log) | |||||
5110 | GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTagAndQualifiedNameHash()"); | |||||
5111 | m_apple_types_ap->FindByNameAndTagAndQualifiedNameHash (type_name.GetCString(), die->Tag(), qualified_name_hash, die_offsets); | |||||
5112 | } | |||||
5113 | else if (has_tag) | |||||
5114 | { | |||||
5115 | if (log) | |||||
5116 | GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTag()"); | |||||
5117 | m_apple_types_ap->FindByNameAndTag (type_name.GetCString(), die->Tag(), die_offsets); | |||||
5118 | } | |||||
5119 | else | |||||
5120 | { | |||||
5121 | m_apple_types_ap->FindByName (type_name.GetCString(), die_offsets); | |||||
5122 | } | |||||
5123 | } | |||||
5124 | } | |||||
5125 | else | |||||
5126 | { | |||||
5127 | if (!m_indexed) | |||||
5128 | Index (); | |||||
5129 | ||||||
5130 | m_type_index.Find (type_name, die_offsets); | |||||
5131 | } | |||||
5132 | ||||||
5133 | const size_t num_matches = die_offsets.size(); | |||||
5134 | ||||||
5135 | const dw_tag_t die_tag = die->Tag(); | |||||
5136 | ||||||
5137 | DWARFCompileUnit* type_cu = NULL__null; | |||||
5138 | const DWARFDebugInfoEntry* type_die = NULL__null; | |||||
5139 | if (num_matches) | |||||
5140 | { | |||||
5141 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
5142 | for (size_t i=0; i<num_matches; ++i) | |||||
5143 | { | |||||
5144 | const dw_offset_t die_offset = die_offsets[i]; | |||||
5145 | type_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &type_cu); | |||||
5146 | ||||||
5147 | if (type_die) | |||||
5148 | { | |||||
5149 | bool try_resolving_type = false; | |||||
5150 | ||||||
5151 | // Don't try and resolve the DIE we are looking for with the DIE itself! | |||||
5152 | if (type_die != die) | |||||
5153 | { | |||||
5154 | const dw_tag_t type_die_tag = type_die->Tag(); | |||||
5155 | // Make sure the tags match | |||||
5156 | if (type_die_tag == die_tag) | |||||
5157 | { | |||||
5158 | // The tags match, lets try resolving this type | |||||
5159 | try_resolving_type = true; | |||||
5160 | } | |||||
5161 | else | |||||
5162 | { | |||||
5163 | // The tags don't match, but we need to watch our for a | |||||
5164 | // forward declaration for a struct and ("struct foo") | |||||
5165 | // ends up being a class ("class foo { ... };") or | |||||
5166 | // vice versa. | |||||
5167 | switch (type_die_tag) | |||||
5168 | { | |||||
5169 | case DW_TAG_class_type: | |||||
5170 | // We had a "class foo", see if we ended up with a "struct foo { ... };" | |||||
5171 | try_resolving_type = (die_tag == DW_TAG_structure_type); | |||||
5172 | break; | |||||
5173 | case DW_TAG_structure_type: | |||||
5174 | // We had a "struct foo", see if we ended up with a "class foo { ... };" | |||||
5175 | try_resolving_type = (die_tag == DW_TAG_class_type); | |||||
5176 | break; | |||||
5177 | default: | |||||
5178 | // Tags don't match, don't event try to resolve | |||||
5179 | // using this type whose name matches.... | |||||
5180 | break; | |||||
5181 | } | |||||
5182 | } | |||||
5183 | } | |||||
5184 | ||||||
5185 | if (try_resolving_type) | |||||
5186 | { | |||||
5187 | if (log) | |||||
5188 | { | |||||
5189 | std::string qualified_name; | |||||
5190 | type_die->GetQualifiedName(this, cu, qualified_name); | |||||
5191 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
5192 | "SymbolFileDWARF::FindDefinitionTypeForDIE(die=0x%8.8x, name='%s') trying die=0x%8.8x (%s)", | |||||
5193 | die->GetOffset(), | |||||
5194 | type_name.GetCString(), | |||||
5195 | type_die->GetOffset(), | |||||
5196 | qualified_name.c_str()); | |||||
5197 | } | |||||
5198 | ||||||
5199 | // Make sure the decl contexts match all the way up | |||||
5200 | if (DIEDeclContextsMatch(cu, die, type_cu, type_die)) | |||||
5201 | { | |||||
5202 | Type *resolved_type = ResolveType (type_cu, type_die, false); | |||||
5203 | if (resolved_type && resolved_type != DIE_IS_BEING_PARSED((lldb_private::Type*)1)) | |||||
5204 | { | |||||
5205 | DEBUG_PRINTF ("resolved 0x%8.8" PRIx64 " (cu 0x%8.8" PRIx64 ") from %s to 0x%8.8" PRIx64 " (cu 0x%8.8" PRIx64 ")\n", | |||||
5206 | MakeUserID(die->GetOffset()), | |||||
5207 | MakeUserID(cu->GetOffset()), | |||||
5208 | m_obj_file->GetFileSpec().GetFilename().AsCString(), | |||||
5209 | MakeUserID(type_die->GetOffset()), | |||||
5210 | MakeUserID(type_cu->GetOffset())); | |||||
5211 | ||||||
5212 | m_die_to_type[die] = resolved_type; | |||||
5213 | type_sp = resolved_type->shared_from_this(); | |||||
5214 | break; | |||||
5215 | } | |||||
5216 | } | |||||
5217 | } | |||||
5218 | else | |||||
5219 | { | |||||
5220 | if (log) | |||||
5221 | { | |||||
5222 | std::string qualified_name; | |||||
5223 | type_die->GetQualifiedName(this, cu, qualified_name); | |||||
5224 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
5225 | "SymbolFileDWARF::FindDefinitionTypeForDIE(die=0x%8.8x, name='%s') ignoring die=0x%8.8x (%s)", | |||||
5226 | die->GetOffset(), | |||||
5227 | type_name.GetCString(), | |||||
5228 | type_die->GetOffset(), | |||||
5229 | qualified_name.c_str()); | |||||
5230 | } | |||||
5231 | } | |||||
5232 | } | |||||
5233 | else | |||||
5234 | { | |||||
5235 | if (m_using_apple_tables) | |||||
5236 | { | |||||
5237 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n", | |||||
5238 | die_offset, type_name.GetCString()); | |||||
5239 | } | |||||
5240 | } | |||||
5241 | ||||||
5242 | } | |||||
5243 | } | |||||
5244 | return type_sp; | |||||
5245 | } | |||||
5246 | ||||||
5247 | TypeSP | |||||
5248 | SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &dwarf_decl_ctx) | |||||
5249 | { | |||||
5250 | TypeSP type_sp; | |||||
5251 | ||||||
5252 | const uint32_t dwarf_decl_ctx_count = dwarf_decl_ctx.GetSize(); | |||||
5253 | if (dwarf_decl_ctx_count > 0) | |||||
5254 | { | |||||
5255 | const ConstString type_name(dwarf_decl_ctx[0].name); | |||||
5256 | const dw_tag_t tag = dwarf_decl_ctx[0].tag; | |||||
5257 | ||||||
5258 | if (type_name) | |||||
5259 | { | |||||
5260 | Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_TYPE_COMPLETION(1u << 7)|DWARF_LOG_LOOKUPS(1u << 6))); | |||||
5261 | if (log) | |||||
5262 | { | |||||
5263 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
5264 | "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s')", | |||||
5265 | DW_TAG_value_to_name(dwarf_decl_ctx[0].tag), | |||||
5266 | dwarf_decl_ctx.GetQualifiedName()); | |||||
5267 | } | |||||
5268 | ||||||
5269 | DIEArray die_offsets; | |||||
5270 | ||||||
5271 | if (m_using_apple_tables) | |||||
5272 | { | |||||
5273 | if (m_apple_types_ap.get()) | |||||
5274 | { | |||||
5275 | const bool has_tag = m_apple_types_ap->GetHeader().header_data.ContainsAtom (DWARFMappedHash::eAtomTypeTag); | |||||
5276 | const bool has_qualified_name_hash = m_apple_types_ap->GetHeader().header_data.ContainsAtom (DWARFMappedHash::eAtomTypeQualNameHash); | |||||
5277 | if (has_tag && has_qualified_name_hash) | |||||
5278 | { | |||||
5279 | const char *qualified_name = dwarf_decl_ctx.GetQualifiedName(); | |||||
5280 | const uint32_t qualified_name_hash = MappedHash::HashStringUsingDJB (qualified_name); | |||||
5281 | if (log) | |||||
5282 | GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTagAndQualifiedNameHash()"); | |||||
5283 | m_apple_types_ap->FindByNameAndTagAndQualifiedNameHash (type_name.GetCString(), tag, qualified_name_hash, die_offsets); | |||||
5284 | } | |||||
5285 | else if (has_tag) | |||||
5286 | { | |||||
5287 | if (log) | |||||
5288 | GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTag()"); | |||||
5289 | m_apple_types_ap->FindByNameAndTag (type_name.GetCString(), tag, die_offsets); | |||||
5290 | } | |||||
5291 | else | |||||
5292 | { | |||||
5293 | m_apple_types_ap->FindByName (type_name.GetCString(), die_offsets); | |||||
5294 | } | |||||
5295 | } | |||||
5296 | } | |||||
5297 | else | |||||
5298 | { | |||||
5299 | if (!m_indexed) | |||||
5300 | Index (); | |||||
5301 | ||||||
5302 | m_type_index.Find (type_name, die_offsets); | |||||
5303 | } | |||||
5304 | ||||||
5305 | const size_t num_matches = die_offsets.size(); | |||||
5306 | ||||||
5307 | ||||||
5308 | DWARFCompileUnit* type_cu = NULL__null; | |||||
5309 | const DWARFDebugInfoEntry* type_die = NULL__null; | |||||
5310 | if (num_matches) | |||||
5311 | { | |||||
5312 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
5313 | for (size_t i=0; i<num_matches; ++i) | |||||
5314 | { | |||||
5315 | const dw_offset_t die_offset = die_offsets[i]; | |||||
5316 | type_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &type_cu); | |||||
5317 | ||||||
5318 | if (type_die) | |||||
5319 | { | |||||
5320 | bool try_resolving_type = false; | |||||
5321 | ||||||
5322 | // Don't try and resolve the DIE we are looking for with the DIE itself! | |||||
5323 | const dw_tag_t type_tag = type_die->Tag(); | |||||
5324 | // Make sure the tags match | |||||
5325 | if (type_tag == tag) | |||||
5326 | { | |||||
5327 | // The tags match, lets try resolving this type | |||||
5328 | try_resolving_type = true; | |||||
5329 | } | |||||
5330 | else | |||||
5331 | { | |||||
5332 | // The tags don't match, but we need to watch our for a | |||||
5333 | // forward declaration for a struct and ("struct foo") | |||||
5334 | // ends up being a class ("class foo { ... };") or | |||||
5335 | // vice versa. | |||||
5336 | switch (type_tag) | |||||
5337 | { | |||||
5338 | case DW_TAG_class_type: | |||||
5339 | // We had a "class foo", see if we ended up with a "struct foo { ... };" | |||||
5340 | try_resolving_type = (tag == DW_TAG_structure_type); | |||||
5341 | break; | |||||
5342 | case DW_TAG_structure_type: | |||||
5343 | // We had a "struct foo", see if we ended up with a "class foo { ... };" | |||||
5344 | try_resolving_type = (tag == DW_TAG_class_type); | |||||
5345 | break; | |||||
5346 | default: | |||||
5347 | // Tags don't match, don't event try to resolve | |||||
5348 | // using this type whose name matches.... | |||||
5349 | break; | |||||
5350 | } | |||||
5351 | } | |||||
5352 | ||||||
5353 | if (try_resolving_type) | |||||
5354 | { | |||||
5355 | DWARFDeclContext type_dwarf_decl_ctx; | |||||
5356 | type_die->GetDWARFDeclContext (this, type_cu, type_dwarf_decl_ctx); | |||||
5357 | ||||||
5358 | if (log) | |||||
5359 | { | |||||
5360 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
5361 | "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s') trying die=0x%8.8x (%s)", | |||||
5362 | DW_TAG_value_to_name(dwarf_decl_ctx[0].tag), | |||||
5363 | dwarf_decl_ctx.GetQualifiedName(), | |||||
5364 | type_die->GetOffset(), | |||||
5365 | type_dwarf_decl_ctx.GetQualifiedName()); | |||||
5366 | } | |||||
5367 | ||||||
5368 | // Make sure the decl contexts match all the way up | |||||
5369 | if (dwarf_decl_ctx == type_dwarf_decl_ctx) | |||||
5370 | { | |||||
5371 | Type *resolved_type = ResolveType (type_cu, type_die, false); | |||||
5372 | if (resolved_type && resolved_type != DIE_IS_BEING_PARSED((lldb_private::Type*)1)) | |||||
5373 | { | |||||
5374 | type_sp = resolved_type->shared_from_this(); | |||||
5375 | break; | |||||
5376 | } | |||||
5377 | } | |||||
5378 | } | |||||
5379 | else | |||||
5380 | { | |||||
5381 | if (log) | |||||
5382 | { | |||||
5383 | std::string qualified_name; | |||||
5384 | type_die->GetQualifiedName(this, type_cu, qualified_name); | |||||
5385 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
5386 | "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s') ignoring die=0x%8.8x (%s)", | |||||
5387 | DW_TAG_value_to_name(dwarf_decl_ctx[0].tag), | |||||
5388 | dwarf_decl_ctx.GetQualifiedName(), | |||||
5389 | type_die->GetOffset(), | |||||
5390 | qualified_name.c_str()); | |||||
5391 | } | |||||
5392 | } | |||||
5393 | } | |||||
5394 | else | |||||
5395 | { | |||||
5396 | if (m_using_apple_tables) | |||||
5397 | { | |||||
5398 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n", | |||||
5399 | die_offset, type_name.GetCString()); | |||||
5400 | } | |||||
5401 | } | |||||
5402 | ||||||
5403 | } | |||||
5404 | } | |||||
5405 | } | |||||
5406 | } | |||||
5407 | return type_sp; | |||||
5408 | } | |||||
5409 | ||||||
5410 | bool | |||||
5411 | SymbolFileDWARF::CopyUniqueClassMethodTypes (SymbolFileDWARF *src_symfile, | |||||
5412 | Type *class_type, | |||||
5413 | DWARFCompileUnit* src_cu, | |||||
5414 | const DWARFDebugInfoEntry *src_class_die, | |||||
5415 | DWARFCompileUnit* dst_cu, | |||||
5416 | const DWARFDebugInfoEntry *dst_class_die, | |||||
5417 | DWARFDIECollection &failures) | |||||
5418 | { | |||||
5419 | if (!class_type || !src_cu || !src_class_die || !dst_cu || !dst_class_die) | |||||
5420 | return false; | |||||
5421 | if (src_class_die->Tag() != dst_class_die->Tag()) | |||||
5422 | return false; | |||||
5423 | ||||||
5424 | // We need to complete the class type so we can get all of the method types | |||||
5425 | // parsed so we can then unique those types to their equivalent counterparts | |||||
5426 | // in "dst_cu" and "dst_class_die" | |||||
5427 | class_type->GetClangFullType(); | |||||
5428 | ||||||
5429 | const DWARFDebugInfoEntry *src_die; | |||||
5430 | const DWARFDebugInfoEntry *dst_die; | |||||
5431 | UniqueCStringMap<const DWARFDebugInfoEntry *> src_name_to_die; | |||||
5432 | UniqueCStringMap<const DWARFDebugInfoEntry *> dst_name_to_die; | |||||
5433 | UniqueCStringMap<const DWARFDebugInfoEntry *> src_name_to_die_artificial; | |||||
5434 | UniqueCStringMap<const DWARFDebugInfoEntry *> dst_name_to_die_artificial; | |||||
5435 | for (src_die = src_class_die->GetFirstChild(); src_die != NULL__null; src_die = src_die->GetSibling()) | |||||
5436 | { | |||||
5437 | if (src_die->Tag() == DW_TAG_subprogram) | |||||
5438 | { | |||||
5439 | // Make sure this is a declaration and not a concrete instance by looking | |||||
5440 | // for DW_AT_declaration set to 1. Sometimes concrete function instances | |||||
5441 | // are placed inside the class definitions and shouldn't be included in | |||||
5442 | // the list of things are are tracking here. | |||||
5443 | if (src_die->GetAttributeValueAsUnsigned(src_symfile, src_cu, DW_AT_declaration, 0) == 1) | |||||
5444 | { | |||||
5445 | const char *src_name = src_die->GetMangledName (src_symfile, src_cu); | |||||
5446 | if (src_name) | |||||
5447 | { | |||||
5448 | ConstString src_const_name(src_name); | |||||
5449 | if (src_die->GetAttributeValueAsUnsigned(src_symfile, src_cu, DW_AT_artificial, 0)) | |||||
5450 | src_name_to_die_artificial.Append(src_const_name.GetCString(), src_die); | |||||
5451 | else | |||||
5452 | src_name_to_die.Append(src_const_name.GetCString(), src_die); | |||||
5453 | } | |||||
5454 | } | |||||
5455 | } | |||||
5456 | } | |||||
5457 | for (dst_die = dst_class_die->GetFirstChild(); dst_die != NULL__null; dst_die = dst_die->GetSibling()) | |||||
5458 | { | |||||
5459 | if (dst_die->Tag() == DW_TAG_subprogram) | |||||
5460 | { | |||||
5461 | // Make sure this is a declaration and not a concrete instance by looking | |||||
5462 | // for DW_AT_declaration set to 1. Sometimes concrete function instances | |||||
5463 | // are placed inside the class definitions and shouldn't be included in | |||||
5464 | // the list of things are are tracking here. | |||||
5465 | if (dst_die->GetAttributeValueAsUnsigned(this, dst_cu, DW_AT_declaration, 0) == 1) | |||||
5466 | { | |||||
5467 | const char *dst_name = dst_die->GetMangledName (this, dst_cu); | |||||
5468 | if (dst_name) | |||||
5469 | { | |||||
5470 | ConstString dst_const_name(dst_name); | |||||
5471 | if (dst_die->GetAttributeValueAsUnsigned(this, dst_cu, DW_AT_artificial, 0)) | |||||
5472 | dst_name_to_die_artificial.Append(dst_const_name.GetCString(), dst_die); | |||||
5473 | else | |||||
5474 | dst_name_to_die.Append(dst_const_name.GetCString(), dst_die); | |||||
5475 | } | |||||
5476 | } | |||||
5477 | } | |||||
5478 | } | |||||
5479 | const uint32_t src_size = src_name_to_die.GetSize (); | |||||
5480 | const uint32_t dst_size = dst_name_to_die.GetSize (); | |||||
5481 | Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO(1u << 1) | DWARF_LOG_TYPE_COMPLETION(1u << 7))); | |||||
5482 | ||||||
5483 | // Is everything kosher so we can go through the members at top speed? | |||||
5484 | bool fast_path = true; | |||||
5485 | ||||||
5486 | if (src_size != dst_size) | |||||
5487 | { | |||||
5488 | if (src_size != 0 && dst_size != 0) | |||||
5489 | { | |||||
5490 | if (log) | |||||
5491 | log->Printf("warning: trying to unique class DIE 0x%8.8x to 0x%8.8x, but they didn't have the same size (src=%d, dst=%d)", | |||||
5492 | src_class_die->GetOffset(), | |||||
5493 | dst_class_die->GetOffset(), | |||||
5494 | src_size, | |||||
5495 | dst_size); | |||||
5496 | } | |||||
5497 | ||||||
5498 | fast_path = false; | |||||
5499 | } | |||||
5500 | ||||||
5501 | uint32_t idx; | |||||
5502 | ||||||
5503 | if (fast_path) | |||||
5504 | { | |||||
5505 | for (idx = 0; idx < src_size; ++idx) | |||||
5506 | { | |||||
5507 | src_die = src_name_to_die.GetValueAtIndexUnchecked (idx); | |||||
5508 | dst_die = dst_name_to_die.GetValueAtIndexUnchecked (idx); | |||||
5509 | ||||||
5510 | if (src_die->Tag() != dst_die->Tag()) | |||||
5511 | { | |||||
5512 | if (log) | |||||
5513 | log->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, but 0x%8.8x (%s) tags didn't match 0x%8.8x (%s)", | |||||
5514 | src_class_die->GetOffset(), | |||||
5515 | dst_class_die->GetOffset(), | |||||
5516 | src_die->GetOffset(), | |||||
5517 | DW_TAG_value_to_name(src_die->Tag()), | |||||
5518 | dst_die->GetOffset(), | |||||
5519 | DW_TAG_value_to_name(src_die->Tag())); | |||||
5520 | fast_path = false; | |||||
5521 | } | |||||
5522 | ||||||
5523 | const char *src_name = src_die->GetMangledName (src_symfile, src_cu); | |||||
5524 | const char *dst_name = dst_die->GetMangledName (this, dst_cu); | |||||
5525 | ||||||
5526 | // Make sure the names match | |||||
5527 | if (src_name == dst_name || (strcmp (src_name, dst_name) == 0)) | |||||
5528 | continue; | |||||
5529 | ||||||
5530 | if (log) | |||||
5531 | log->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, but 0x%8.8x (%s) names didn't match 0x%8.8x (%s)", | |||||
5532 | src_class_die->GetOffset(), | |||||
5533 | dst_class_die->GetOffset(), | |||||
5534 | src_die->GetOffset(), | |||||
5535 | src_name, | |||||
5536 | dst_die->GetOffset(), | |||||
5537 | dst_name); | |||||
5538 | ||||||
5539 | fast_path = false; | |||||
5540 | } | |||||
5541 | } | |||||
5542 | ||||||
5543 | // Now do the work of linking the DeclContexts and Types. | |||||
5544 | if (fast_path) | |||||
5545 | { | |||||
5546 | // We can do this quickly. Just run across the tables index-for-index since | |||||
5547 | // we know each node has matching names and tags. | |||||
5548 | for (idx = 0; idx < src_size; ++idx) | |||||
5549 | { | |||||
5550 | src_die = src_name_to_die.GetValueAtIndexUnchecked (idx); | |||||
5551 | dst_die = dst_name_to_die.GetValueAtIndexUnchecked (idx); | |||||
5552 | ||||||
5553 | clang::DeclContext *src_decl_ctx = src_symfile->m_die_to_decl_ctx[src_die]; | |||||
5554 | if (src_decl_ctx) | |||||
5555 | { | |||||
5556 | if (log) | |||||
5557 | log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x", | |||||
5558 | static_cast<void*>(src_decl_ctx), | |||||
5559 | src_die->GetOffset(), dst_die->GetOffset()); | |||||
5560 | LinkDeclContextToDIE (src_decl_ctx, dst_die); | |||||
5561 | } | |||||
5562 | else | |||||
5563 | { | |||||
5564 | if (log) | |||||
5565 | log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found", | |||||
5566 | src_die->GetOffset(), dst_die->GetOffset()); | |||||
5567 | } | |||||
5568 | ||||||
5569 | Type *src_child_type = m_die_to_type[src_die]; | |||||
5570 | if (src_child_type) | |||||
5571 | { | |||||
5572 | if (log) | |||||
5573 | log->Printf ("uniquing type %p (uid=0x%" PRIx64"l" "x" ") from 0x%8.8x for 0x%8.8x", | |||||
5574 | static_cast<void*>(src_child_type), | |||||
5575 | src_child_type->GetID(), | |||||
5576 | src_die->GetOffset(), dst_die->GetOffset()); | |||||
5577 | m_die_to_type[dst_die] = src_child_type; | |||||
5578 | } | |||||
5579 | else | |||||
5580 | { | |||||
5581 | if (log) | |||||
5582 | log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset()); | |||||
5583 | } | |||||
5584 | } | |||||
5585 | } | |||||
5586 | else | |||||
5587 | { | |||||
5588 | // We must do this slowly. For each member of the destination, look | |||||
5589 | // up a member in the source with the same name, check its tag, and | |||||
5590 | // unique them if everything matches up. Report failures. | |||||
5591 | ||||||
5592 | if (!src_name_to_die.IsEmpty() && !dst_name_to_die.IsEmpty()) | |||||
5593 | { | |||||
5594 | src_name_to_die.Sort(); | |||||
5595 | ||||||
5596 | for (idx = 0; idx < dst_size; ++idx) | |||||
5597 | { | |||||
5598 | const char *dst_name = dst_name_to_die.GetCStringAtIndex(idx); | |||||
5599 | dst_die = dst_name_to_die.GetValueAtIndexUnchecked(idx); | |||||
5600 | src_die = src_name_to_die.Find(dst_name, NULL__null); | |||||
5601 | ||||||
5602 | if (src_die && (src_die->Tag() == dst_die->Tag())) | |||||
5603 | { | |||||
5604 | clang::DeclContext *src_decl_ctx = src_symfile->m_die_to_decl_ctx[src_die]; | |||||
5605 | if (src_decl_ctx) | |||||
5606 | { | |||||
5607 | if (log) | |||||
5608 | log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x", | |||||
5609 | static_cast<void*>(src_decl_ctx), | |||||
5610 | src_die->GetOffset(), | |||||
5611 | dst_die->GetOffset()); | |||||
5612 | LinkDeclContextToDIE (src_decl_ctx, dst_die); | |||||
5613 | } | |||||
5614 | else | |||||
5615 | { | |||||
5616 | if (log) | |||||
5617 | log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset()); | |||||
5618 | } | |||||
5619 | ||||||
5620 | Type *src_child_type = m_die_to_type[src_die]; | |||||
5621 | if (src_child_type) | |||||
5622 | { | |||||
5623 | if (log) | |||||
5624 | log->Printf ("uniquing type %p (uid=0x%" PRIx64"l" "x" ") from 0x%8.8x for 0x%8.8x", | |||||
5625 | static_cast<void*>(src_child_type), | |||||
5626 | src_child_type->GetID(), | |||||
5627 | src_die->GetOffset(), | |||||
5628 | dst_die->GetOffset()); | |||||
5629 | m_die_to_type[dst_die] = src_child_type; | |||||
5630 | } | |||||
5631 | else | |||||
5632 | { | |||||
5633 | if (log) | |||||
5634 | log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset()); | |||||
5635 | } | |||||
5636 | } | |||||
5637 | else | |||||
5638 | { | |||||
5639 | if (log) | |||||
5640 | log->Printf ("warning: couldn't find a match for 0x%8.8x", dst_die->GetOffset()); | |||||
5641 | ||||||
5642 | failures.Append(dst_die); | |||||
5643 | } | |||||
5644 | } | |||||
5645 | } | |||||
5646 | } | |||||
5647 | ||||||
5648 | const uint32_t src_size_artificial = src_name_to_die_artificial.GetSize (); | |||||
5649 | const uint32_t dst_size_artificial = dst_name_to_die_artificial.GetSize (); | |||||
5650 | ||||||
5651 | UniqueCStringMap<const DWARFDebugInfoEntry *> name_to_die_artificial_not_in_src; | |||||
5652 | ||||||
5653 | if (src_size_artificial && dst_size_artificial) | |||||
5654 | { | |||||
5655 | dst_name_to_die_artificial.Sort(); | |||||
5656 | ||||||
5657 | for (idx = 0; idx < src_size_artificial; ++idx) | |||||
5658 | { | |||||
5659 | const char *src_name_artificial = src_name_to_die_artificial.GetCStringAtIndex(idx); | |||||
5660 | src_die = src_name_to_die_artificial.GetValueAtIndexUnchecked (idx); | |||||
5661 | dst_die = dst_name_to_die_artificial.Find(src_name_artificial, NULL__null); | |||||
5662 | ||||||
5663 | if (dst_die) | |||||
5664 | { | |||||
5665 | // Both classes have the artificial types, link them | |||||
5666 | clang::DeclContext *src_decl_ctx = m_die_to_decl_ctx[src_die]; | |||||
5667 | if (src_decl_ctx) | |||||
5668 | { | |||||
5669 | if (log) | |||||
5670 | log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x", | |||||
5671 | static_cast<void*>(src_decl_ctx), | |||||
5672 | src_die->GetOffset(), dst_die->GetOffset()); | |||||
5673 | LinkDeclContextToDIE (src_decl_ctx, dst_die); | |||||
5674 | } | |||||
5675 | else | |||||
5676 | { | |||||
5677 | if (log) | |||||
5678 | log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset()); | |||||
5679 | } | |||||
5680 | ||||||
5681 | Type *src_child_type = m_die_to_type[src_die]; | |||||
5682 | if (src_child_type) | |||||
5683 | { | |||||
5684 | if (log) | |||||
5685 | log->Printf ("uniquing type %p (uid=0x%" PRIx64"l" "x" ") from 0x%8.8x for 0x%8.8x", | |||||
5686 | static_cast<void*>(src_child_type), | |||||
5687 | src_child_type->GetID(), | |||||
5688 | src_die->GetOffset(), dst_die->GetOffset()); | |||||
5689 | m_die_to_type[dst_die] = src_child_type; | |||||
5690 | } | |||||
5691 | else | |||||
5692 | { | |||||
5693 | if (log) | |||||
5694 | log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset()); | |||||
5695 | } | |||||
5696 | } | |||||
5697 | } | |||||
5698 | } | |||||
5699 | ||||||
5700 | if (dst_size_artificial) | |||||
5701 | { | |||||
5702 | for (idx = 0; idx < dst_size_artificial; ++idx) | |||||
5703 | { | |||||
5704 | const char *dst_name_artificial = dst_name_to_die_artificial.GetCStringAtIndex(idx); | |||||
5705 | dst_die = dst_name_to_die_artificial.GetValueAtIndexUnchecked (idx); | |||||
5706 | if (log) | |||||
5707 | log->Printf ("warning: need to create artificial method for 0x%8.8x for method '%s'", dst_die->GetOffset(), dst_name_artificial); | |||||
5708 | ||||||
5709 | failures.Append(dst_die); | |||||
5710 | } | |||||
5711 | } | |||||
5712 | ||||||
5713 | return (failures.Size() != 0); | |||||
5714 | } | |||||
5715 | ||||||
5716 | TypeSP | |||||
5717 | SymbolFileDWARF::ParseType (const SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die, bool *type_is_new_ptr) | |||||
5718 | { | |||||
5719 | TypeSP type_sp; | |||||
5720 | ||||||
5721 | if (type_is_new_ptr) | |||||
5722 | *type_is_new_ptr = false; | |||||
5723 | ||||||
5724 | #if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE) | |||||
5725 | static DIEStack g_die_stack; | |||||
5726 | DIEStack::ScopedPopper scoped_die_logger(g_die_stack); | |||||
5727 | #endif | |||||
5728 | ||||||
5729 | AccessType accessibility = eAccessNone; | |||||
5730 | if (die != NULL__null) | |||||
5731 | { | |||||
5732 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO(1u << 1))); | |||||
5733 | if (log) | |||||
5734 | { | |||||
5735 | const DWARFDebugInfoEntry *context_die; | |||||
5736 | clang::DeclContext *context = GetClangDeclContextContainingDIE (dwarf_cu, die, &context_die); | |||||
5737 | ||||||
5738 | GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x, decl_ctx = %p (die 0x%8.8x)) %s name = '%s')", | |||||
5739 | die->GetOffset(), | |||||
5740 | static_cast<void*>(context), | |||||
5741 | context_die->GetOffset(), | |||||
5742 | DW_TAG_value_to_name(die->Tag()), | |||||
5743 | die->GetName(this, dwarf_cu)); | |||||
5744 | ||||||
5745 | #if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE) | |||||
5746 | scoped_die_logger.Push (dwarf_cu, die); | |||||
5747 | g_die_stack.LogDIEs(log, this); | |||||
5748 | #endif | |||||
5749 | } | |||||
5750 | // | |||||
5751 | // Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO)); | |||||
5752 | // if (log && dwarf_cu) | |||||
5753 | // { | |||||
5754 | // StreamString s; | |||||
5755 | // die->DumpLocation (this, dwarf_cu, s); | |||||
5756 | // GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDwarf::%s %s", __FUNCTION__, s.GetData()); | |||||
5757 | // | |||||
5758 | // } | |||||
5759 | ||||||
5760 | Type *type_ptr = m_die_to_type.lookup (die); | |||||
5761 | TypeList* type_list = GetTypeList(); | |||||
5762 | if (type_ptr == NULL__null) | |||||
5763 | { | |||||
5764 | ClangASTContext &ast = GetClangASTContext(); | |||||
5765 | if (type_is_new_ptr) | |||||
5766 | *type_is_new_ptr = true; | |||||
5767 | ||||||
5768 | const dw_tag_t tag = die->Tag(); | |||||
5769 | ||||||
5770 | bool is_forward_declaration = false; | |||||
5771 | DWARFDebugInfoEntry::Attributes attributes; | |||||
5772 | const char *type_name_cstr = NULL__null; | |||||
5773 | ConstString type_name_const_str; | |||||
5774 | Type::ResolveState resolve_state = Type::eResolveStateUnresolved; | |||||
5775 | uint64_t byte_size = 0; | |||||
5776 | Declaration decl; | |||||
5777 | ||||||
5778 | Type::EncodingDataType encoding_data_type = Type::eEncodingIsUID; | |||||
5779 | ClangASTType clang_type; | |||||
5780 | DWARFFormValue form_value; | |||||
5781 | ||||||
5782 | dw_attr_t attr; | |||||
5783 | ||||||
5784 | switch (tag) | |||||
5785 | { | |||||
5786 | case DW_TAG_base_type: | |||||
5787 | case DW_TAG_pointer_type: | |||||
5788 | case DW_TAG_reference_type: | |||||
5789 | case DW_TAG_rvalue_reference_type: | |||||
5790 | case DW_TAG_typedef: | |||||
5791 | case DW_TAG_const_type: | |||||
5792 | case DW_TAG_restrict_type: | |||||
5793 | case DW_TAG_volatile_type: | |||||
5794 | case DW_TAG_unspecified_type: | |||||
5795 | { | |||||
5796 | // Set a bit that lets us know that we are currently parsing this | |||||
5797 | m_die_to_type[die] = DIE_IS_BEING_PARSED((lldb_private::Type*)1); | |||||
5798 | ||||||
5799 | const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL__null, attributes); | |||||
5800 | uint32_t encoding = 0; | |||||
5801 | lldb::user_id_t encoding_uid = LLDB_INVALID_UID(18446744073709551615UL); | |||||
5802 | ||||||
5803 | if (num_attributes > 0) | |||||
5804 | { | |||||
5805 | uint32_t i; | |||||
5806 | for (i=0; i<num_attributes; ++i) | |||||
5807 | { | |||||
5808 | attr = attributes.AttributeAtIndex(i); | |||||
5809 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||||
5810 | { | |||||
5811 | switch (attr) | |||||
5812 | { | |||||
5813 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||||
5814 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||||
5815 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||||
5816 | case DW_AT_name: | |||||
5817 | ||||||
5818 | type_name_cstr = form_value.AsCString(&get_debug_str_data()); | |||||
5819 | // Work around a bug in llvm-gcc where they give a name to a reference type which doesn't | |||||
5820 | // include the "&"... | |||||
5821 | if (tag == DW_TAG_reference_type) | |||||
5822 | { | |||||
5823 | if (strchr (type_name_cstr, '&') == NULL__null) | |||||
5824 | type_name_cstr = NULL__null; | |||||
5825 | } | |||||
5826 | if (type_name_cstr) | |||||
5827 | type_name_const_str.SetCString(type_name_cstr); | |||||
5828 | break; | |||||
5829 | case DW_AT_byte_size: byte_size = form_value.Unsigned(); break; | |||||
5830 | case DW_AT_encoding: encoding = form_value.Unsigned(); break; | |||||
5831 | case DW_AT_type: encoding_uid = form_value.Reference(dwarf_cu); break; | |||||
5832 | default: | |||||
5833 | case DW_AT_sibling: | |||||
5834 | break; | |||||
5835 | } | |||||
5836 | } | |||||
5837 | } | |||||
5838 | } | |||||
5839 | ||||||
5840 | DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\") type => 0x%8.8lx\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr, encoding_uid); | |||||
5841 | ||||||
5842 | switch (tag) | |||||
5843 | { | |||||
5844 | default: | |||||
5845 | break; | |||||
5846 | ||||||
5847 | case DW_TAG_unspecified_type: | |||||
5848 | if (strcmp(type_name_cstr, "nullptr_t") == 0 || | |||||
5849 | strcmp(type_name_cstr, "decltype(nullptr)") == 0 ) | |||||
5850 | { | |||||
5851 | resolve_state = Type::eResolveStateFull; | |||||
5852 | clang_type = ast.GetBasicType(eBasicTypeNullPtr); | |||||
5853 | break; | |||||
5854 | } | |||||
5855 | // Fall through to base type below in case we can handle the type there... | |||||
5856 | ||||||
5857 | case DW_TAG_base_type: | |||||
5858 | resolve_state = Type::eResolveStateFull; | |||||
5859 | clang_type = ast.GetBuiltinTypeForDWARFEncodingAndBitSize (type_name_cstr, | |||||
5860 | encoding, | |||||
5861 | byte_size * 8); | |||||
5862 | break; | |||||
5863 | ||||||
5864 | case DW_TAG_pointer_type: encoding_data_type = Type::eEncodingIsPointerUID; break; | |||||
5865 | case DW_TAG_reference_type: encoding_data_type = Type::eEncodingIsLValueReferenceUID; break; | |||||
5866 | case DW_TAG_rvalue_reference_type: encoding_data_type = Type::eEncodingIsRValueReferenceUID; break; | |||||
5867 | case DW_TAG_typedef: encoding_data_type = Type::eEncodingIsTypedefUID; break; | |||||
5868 | case DW_TAG_const_type: encoding_data_type = Type::eEncodingIsConstUID; break; | |||||
5869 | case DW_TAG_restrict_type: encoding_data_type = Type::eEncodingIsRestrictUID; break; | |||||
5870 | case DW_TAG_volatile_type: encoding_data_type = Type::eEncodingIsVolatileUID; break; | |||||
5871 | } | |||||
5872 | ||||||
5873 | if (!clang_type && (encoding_data_type == Type::eEncodingIsPointerUID || encoding_data_type == Type::eEncodingIsTypedefUID) && sc.comp_unit != NULL__null) | |||||
5874 | { | |||||
5875 | bool translation_unit_is_objc = (sc.comp_unit->GetLanguage() == eLanguageTypeObjC || sc.comp_unit->GetLanguage() == eLanguageTypeObjC_plus_plus); | |||||
5876 | ||||||
5877 | if (translation_unit_is_objc) | |||||
5878 | { | |||||
5879 | if (type_name_cstr != NULL__null) | |||||
5880 | { | |||||
5881 | static ConstString g_objc_type_name_id("id"); | |||||
5882 | static ConstString g_objc_type_name_Class("Class"); | |||||
5883 | static ConstString g_objc_type_name_selector("SEL"); | |||||
5884 | ||||||
5885 | if (type_name_const_str == g_objc_type_name_id) | |||||
5886 | { | |||||
5887 | if (log) | |||||
5888 | GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'id' built-in type.", | |||||
5889 | die->GetOffset(), | |||||
5890 | DW_TAG_value_to_name(die->Tag()), | |||||
5891 | die->GetName(this, dwarf_cu)); | |||||
5892 | clang_type = ast.GetBasicType(eBasicTypeObjCID); | |||||
5893 | encoding_data_type = Type::eEncodingIsUID; | |||||
5894 | encoding_uid = LLDB_INVALID_UID(18446744073709551615UL); | |||||
5895 | resolve_state = Type::eResolveStateFull; | |||||
5896 | ||||||
5897 | } | |||||
5898 | else if (type_name_const_str == g_objc_type_name_Class) | |||||
5899 | { | |||||
5900 | if (log) | |||||
5901 | GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'Class' built-in type.", | |||||
5902 | die->GetOffset(), | |||||
5903 | DW_TAG_value_to_name(die->Tag()), | |||||
5904 | die->GetName(this, dwarf_cu)); | |||||
5905 | clang_type = ast.GetBasicType(eBasicTypeObjCClass); | |||||
5906 | encoding_data_type = Type::eEncodingIsUID; | |||||
5907 | encoding_uid = LLDB_INVALID_UID(18446744073709551615UL); | |||||
5908 | resolve_state = Type::eResolveStateFull; | |||||
5909 | } | |||||
5910 | else if (type_name_const_str == g_objc_type_name_selector) | |||||
5911 | { | |||||
5912 | if (log) | |||||
5913 | GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'selector' built-in type.", | |||||
5914 | die->GetOffset(), | |||||
5915 | DW_TAG_value_to_name(die->Tag()), | |||||
5916 | die->GetName(this, dwarf_cu)); | |||||
5917 | clang_type = ast.GetBasicType(eBasicTypeObjCSel); | |||||
5918 | encoding_data_type = Type::eEncodingIsUID; | |||||
5919 | encoding_uid = LLDB_INVALID_UID(18446744073709551615UL); | |||||
5920 | resolve_state = Type::eResolveStateFull; | |||||
5921 | } | |||||
5922 | } | |||||
5923 | else if (encoding_data_type == Type::eEncodingIsPointerUID && encoding_uid != LLDB_INVALID_UID(18446744073709551615UL)) | |||||
5924 | { | |||||
5925 | // Clang sometimes erroneously emits id as objc_object*. In that case we fix up the type to "id". | |||||
5926 | ||||||
5927 | DWARFDebugInfoEntry* encoding_die = dwarf_cu->GetDIEPtr(encoding_uid); | |||||
5928 | ||||||
5929 | if (encoding_die && encoding_die->Tag() == DW_TAG_structure_type) | |||||
5930 | { | |||||
5931 | if (const char *struct_name = encoding_die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_name, NULL__null)) | |||||
5932 | { | |||||
5933 | if (!strcmp(struct_name, "objc_object")) | |||||
5934 | { | |||||
5935 | if (log) | |||||
5936 | GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is 'objc_object*', which we overrode to 'id'.", | |||||
5937 | die->GetOffset(), | |||||
5938 | DW_TAG_value_to_name(die->Tag()), | |||||
5939 | die->GetName(this, dwarf_cu)); | |||||
5940 | clang_type = ast.GetBasicType(eBasicTypeObjCID); | |||||
5941 | encoding_data_type = Type::eEncodingIsUID; | |||||
5942 | encoding_uid = LLDB_INVALID_UID(18446744073709551615UL); | |||||
5943 | resolve_state = Type::eResolveStateFull; | |||||
5944 | } | |||||
5945 | } | |||||
5946 | } | |||||
5947 | } | |||||
5948 | } | |||||
5949 | } | |||||
5950 | ||||||
5951 | type_sp.reset( new Type (MakeUserID(die->GetOffset()), | |||||
5952 | this, | |||||
5953 | type_name_const_str, | |||||
5954 | byte_size, | |||||
5955 | NULL__null, | |||||
5956 | encoding_uid, | |||||
5957 | encoding_data_type, | |||||
5958 | &decl, | |||||
5959 | clang_type, | |||||
5960 | resolve_state)); | |||||
5961 | ||||||
5962 | m_die_to_type[die] = type_sp.get(); | |||||
5963 | ||||||
5964 | // Type* encoding_type = GetUniquedTypeForDIEOffset(encoding_uid, type_sp, NULL, 0, 0, false); | |||||
5965 | // if (encoding_type != NULL) | |||||
5966 | // { | |||||
5967 | // if (encoding_type != DIE_IS_BEING_PARSED) | |||||
5968 | // type_sp->SetEncodingType(encoding_type); | |||||
5969 | // else | |||||
5970 | // m_indirect_fixups.push_back(type_sp.get()); | |||||
5971 | // } | |||||
5972 | } | |||||
5973 | break; | |||||
5974 | ||||||
5975 | case DW_TAG_structure_type: | |||||
5976 | case DW_TAG_union_type: | |||||
5977 | case DW_TAG_class_type: | |||||
5978 | { | |||||
5979 | // Set a bit that lets us know that we are currently parsing this | |||||
5980 | m_die_to_type[die] = DIE_IS_BEING_PARSED((lldb_private::Type*)1); | |||||
5981 | bool byte_size_valid = false; | |||||
5982 | ||||||
5983 | LanguageType class_language = eLanguageTypeUnknown; | |||||
5984 | bool is_complete_objc_class = false; | |||||
5985 | //bool struct_is_class = false; | |||||
5986 | const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL__null, attributes); | |||||
5987 | if (num_attributes > 0) | |||||
5988 | { | |||||
5989 | uint32_t i; | |||||
5990 | for (i=0; i<num_attributes; ++i) | |||||
5991 | { | |||||
5992 | attr = attributes.AttributeAtIndex(i); | |||||
5993 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||||
5994 | { | |||||
5995 | switch (attr) | |||||
5996 | { | |||||
5997 | case DW_AT_decl_file: | |||||
5998 | if (dwarf_cu->DW_AT_decl_file_attributes_are_invalid()) | |||||
5999 | { | |||||
6000 | // llvm-gcc outputs invalid DW_AT_decl_file attributes that always | |||||
6001 | // point to the compile unit file, so we clear this invalid value | |||||
6002 | // so that we can still unique types efficiently. | |||||
6003 | decl.SetFile(FileSpec ("<invalid>", false)); | |||||
6004 | } | |||||
6005 | else | |||||
6006 | decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); | |||||
6007 | break; | |||||
6008 | ||||||
6009 | case DW_AT_decl_line: | |||||
6010 | decl.SetLine(form_value.Unsigned()); | |||||
6011 | break; | |||||
6012 | ||||||
6013 | case DW_AT_decl_column: | |||||
6014 | decl.SetColumn(form_value.Unsigned()); | |||||
6015 | break; | |||||
6016 | ||||||
6017 | case DW_AT_name: | |||||
6018 | type_name_cstr = form_value.AsCString(&get_debug_str_data()); | |||||
6019 | type_name_const_str.SetCString(type_name_cstr); | |||||
6020 | break; | |||||
6021 | ||||||
6022 | case DW_AT_byte_size: | |||||
6023 | byte_size = form_value.Unsigned(); | |||||
6024 | byte_size_valid = true; | |||||
6025 | break; | |||||
6026 | ||||||
6027 | case DW_AT_accessibility: | |||||
6028 | accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); | |||||
6029 | break; | |||||
6030 | ||||||
6031 | case DW_AT_declaration: | |||||
6032 | is_forward_declaration = form_value.Boolean(); | |||||
6033 | break; | |||||
6034 | ||||||
6035 | case DW_AT_APPLE_runtime_class: | |||||
6036 | class_language = (LanguageType)form_value.Signed(); | |||||
6037 | break; | |||||
6038 | ||||||
6039 | case DW_AT_APPLE_objc_complete_type: | |||||
6040 | is_complete_objc_class = form_value.Signed(); | |||||
6041 | break; | |||||
6042 | ||||||
6043 | case DW_AT_allocated: | |||||
6044 | case DW_AT_associated: | |||||
6045 | case DW_AT_data_location: | |||||
6046 | case DW_AT_description: | |||||
6047 | case DW_AT_start_scope: | |||||
6048 | case DW_AT_visibility: | |||||
6049 | default: | |||||
6050 | case DW_AT_sibling: | |||||
6051 | break; | |||||
6052 | } | |||||
6053 | } | |||||
6054 | } | |||||
6055 | } | |||||
6056 | ||||||
6057 | // UniqueDWARFASTType is large, so don't create a local variables on the | |||||
6058 | // stack, put it on the heap. This function is often called recursively | |||||
6059 | // and clang isn't good and sharing the stack space for variables in different blocks. | |||||
6060 | std::unique_ptr<UniqueDWARFASTType> unique_ast_entry_ap(new UniqueDWARFASTType()); | |||||
6061 | ||||||
6062 | // Only try and unique the type if it has a name. | |||||
6063 | if (type_name_const_str && | |||||
6064 | GetUniqueDWARFASTTypeMap().Find (type_name_const_str, | |||||
6065 | this, | |||||
6066 | dwarf_cu, | |||||
6067 | die, | |||||
6068 | decl, | |||||
6069 | byte_size_valid ? byte_size : -1, | |||||
6070 | *unique_ast_entry_ap)) | |||||
6071 | { | |||||
6072 | // We have already parsed this type or from another | |||||
6073 | // compile unit. GCC loves to use the "one definition | |||||
6074 | // rule" which can result in multiple definitions | |||||
6075 | // of the same class over and over in each compile | |||||
6076 | // unit. | |||||
6077 | type_sp = unique_ast_entry_ap->m_type_sp; | |||||
6078 | if (type_sp) | |||||
6079 | { | |||||
6080 | m_die_to_type[die] = type_sp.get(); | |||||
6081 | return type_sp; | |||||
6082 | } | |||||
6083 | } | |||||
6084 | ||||||
6085 | DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr); | |||||
6086 | ||||||
6087 | int tag_decl_kind = -1; | |||||
6088 | AccessType default_accessibility = eAccessNone; | |||||
6089 | if (tag == DW_TAG_structure_type) | |||||
6090 | { | |||||
6091 | tag_decl_kind = clang::TTK_Struct; | |||||
6092 | default_accessibility = eAccessPublic; | |||||
6093 | } | |||||
6094 | else if (tag == DW_TAG_union_type) | |||||
6095 | { | |||||
6096 | tag_decl_kind = clang::TTK_Union; | |||||
6097 | default_accessibility = eAccessPublic; | |||||
6098 | } | |||||
6099 | else if (tag == DW_TAG_class_type) | |||||
6100 | { | |||||
6101 | tag_decl_kind = clang::TTK_Class; | |||||
6102 | default_accessibility = eAccessPrivate; | |||||
6103 | } | |||||
6104 | ||||||
6105 | if (byte_size_valid && byte_size == 0 && type_name_cstr && | |||||
6106 | die->HasChildren() == false && | |||||
6107 | sc.comp_unit->GetLanguage() == eLanguageTypeObjC) | |||||
6108 | { | |||||
6109 | // Work around an issue with clang at the moment where | |||||
6110 | // forward declarations for objective C classes are emitted | |||||
6111 | // as: | |||||
6112 | // DW_TAG_structure_type [2] | |||||
6113 | // DW_AT_name( "ForwardObjcClass" ) | |||||
6114 | // DW_AT_byte_size( 0x00 ) | |||||
6115 | // DW_AT_decl_file( "..." ) | |||||
6116 | // DW_AT_decl_line( 1 ) | |||||
6117 | // | |||||
6118 | // Note that there is no DW_AT_declaration and there are | |||||
6119 | // no children, and the byte size is zero. | |||||
6120 | is_forward_declaration = true; | |||||
6121 | } | |||||
6122 | ||||||
6123 | if (class_language == eLanguageTypeObjC || | |||||
6124 | class_language == eLanguageTypeObjC_plus_plus) | |||||
6125 | { | |||||
6126 | if (!is_complete_objc_class && Supports_DW_AT_APPLE_objc_complete_type(dwarf_cu)) | |||||
6127 | { | |||||
6128 | // We have a valid eSymbolTypeObjCClass class symbol whose | |||||
6129 | // name matches the current objective C class that we | |||||
6130 | // are trying to find and this DIE isn't the complete | |||||
6131 | // definition (we checked is_complete_objc_class above and | |||||
6132 | // know it is false), so the real definition is in here somewhere | |||||
6133 | type_sp = FindCompleteObjCDefinitionTypeForDIE (die, type_name_const_str, true); | |||||
6134 | ||||||
6135 | if (!type_sp && GetDebugMapSymfile ()) | |||||
6136 | { | |||||
6137 | // We weren't able to find a full declaration in | |||||
6138 | // this DWARF, see if we have a declaration anywhere | |||||
6139 | // else... | |||||
6140 | type_sp = m_debug_map_symfile->FindCompleteObjCDefinitionTypeForDIE (die, type_name_const_str, true); | |||||
6141 | } | |||||
6142 | ||||||
6143 | if (type_sp) | |||||
6144 | { | |||||
6145 | if (log) | |||||
6146 | { | |||||
6147 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
6148 | "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is an incomplete objc type, complete type is 0x%8.8" PRIx64"l" "x", | |||||
6149 | static_cast<void*>(this), | |||||
6150 | die->GetOffset(), | |||||
6151 | DW_TAG_value_to_name(tag), | |||||
6152 | type_name_cstr, | |||||
6153 | type_sp->GetID()); | |||||
6154 | } | |||||
6155 | ||||||
6156 | // We found a real definition for this type elsewhere | |||||
6157 | // so lets use it and cache the fact that we found | |||||
6158 | // a complete type for this die | |||||
6159 | m_die_to_type[die] = type_sp.get(); | |||||
6160 | return type_sp; | |||||
6161 | } | |||||
6162 | } | |||||
6163 | } | |||||
6164 | ||||||
6165 | ||||||
6166 | if (is_forward_declaration) | |||||
6167 | { | |||||
6168 | // We have a forward declaration to a type and we need | |||||
6169 | // to try and find a full declaration. We look in the | |||||
6170 | // current type index just in case we have a forward | |||||
6171 | // declaration followed by an actual declarations in the | |||||
6172 | // DWARF. If this fails, we need to look elsewhere... | |||||
6173 | if (log) | |||||
6174 | { | |||||
6175 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
6176 | "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, trying to find complete type", | |||||
6177 | static_cast<void*>(this), | |||||
6178 | die->GetOffset(), | |||||
6179 | DW_TAG_value_to_name(tag), | |||||
6180 | type_name_cstr); | |||||
6181 | } | |||||
6182 | ||||||
6183 | DWARFDeclContext die_decl_ctx; | |||||
6184 | die->GetDWARFDeclContext(this, dwarf_cu, die_decl_ctx); | |||||
6185 | ||||||
6186 | //type_sp = FindDefinitionTypeForDIE (dwarf_cu, die, type_name_const_str); | |||||
6187 | type_sp = FindDefinitionTypeForDWARFDeclContext (die_decl_ctx); | |||||
6188 | ||||||
6189 | if (!type_sp && GetDebugMapSymfile ()) | |||||
6190 | { | |||||
6191 | // We weren't able to find a full declaration in | |||||
6192 | // this DWARF, see if we have a declaration anywhere | |||||
6193 | // else... | |||||
6194 | type_sp = m_debug_map_symfile->FindDefinitionTypeForDWARFDeclContext (die_decl_ctx); | |||||
6195 | } | |||||
6196 | ||||||
6197 | if (type_sp) | |||||
6198 | { | |||||
6199 | if (log) | |||||
6200 | { | |||||
6201 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
6202 | "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, complete type is 0x%8.8" PRIx64"l" "x", | |||||
6203 | static_cast<void*>(this), | |||||
6204 | die->GetOffset(), | |||||
6205 | DW_TAG_value_to_name(tag), | |||||
6206 | type_name_cstr, | |||||
6207 | type_sp->GetID()); | |||||
6208 | } | |||||
6209 | ||||||
6210 | // We found a real definition for this type elsewhere | |||||
6211 | // so lets use it and cache the fact that we found | |||||
6212 | // a complete type for this die | |||||
6213 | m_die_to_type[die] = type_sp.get(); | |||||
6214 | return type_sp; | |||||
6215 | } | |||||
6216 | } | |||||
6217 | assert (tag_decl_kind != -1)((tag_decl_kind != -1) ? static_cast<void> (0) : __assert_fail ("tag_decl_kind != -1", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 6217, __PRETTY_FUNCTION__)); | |||||
6218 | bool clang_type_was_created = false; | |||||
6219 | clang_type.SetClangType(ast.getASTContext(), m_forward_decl_die_to_clang_type.lookup (die)); | |||||
6220 | if (!clang_type) | |||||
6221 | { | |||||
6222 | const DWARFDebugInfoEntry *decl_ctx_die; | |||||
6223 | ||||||
6224 | clang::DeclContext *decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, &decl_ctx_die); | |||||
6225 | if (accessibility == eAccessNone && decl_ctx) | |||||
6226 | { | |||||
6227 | // Check the decl context that contains this class/struct/union. | |||||
6228 | // If it is a class we must give it an accessibility. | |||||
6229 | const clang::Decl::Kind containing_decl_kind = decl_ctx->getDeclKind(); | |||||
6230 | if (DeclKindIsCXXClass (containing_decl_kind)) | |||||
6231 | accessibility = default_accessibility; | |||||
6232 | } | |||||
6233 | ||||||
6234 | ClangASTMetadata metadata; | |||||
6235 | metadata.SetUserID(MakeUserID(die->GetOffset())); | |||||
6236 | metadata.SetIsDynamicCXXType(ClassOrStructIsVirtual (dwarf_cu, die)); | |||||
6237 | ||||||
6238 | if (type_name_cstr && strchr (type_name_cstr, '<')) | |||||
6239 | { | |||||
6240 | ClangASTContext::TemplateParameterInfos template_param_infos; | |||||
6241 | if (ParseTemplateParameterInfos (dwarf_cu, die, template_param_infos)) | |||||
6242 | { | |||||
6243 | clang::ClassTemplateDecl *class_template_decl = ParseClassTemplateDecl (decl_ctx, | |||||
6244 | accessibility, | |||||
6245 | type_name_cstr, | |||||
6246 | tag_decl_kind, | |||||
6247 | template_param_infos); | |||||
6248 | ||||||
6249 | clang::ClassTemplateSpecializationDecl *class_specialization_decl = ast.CreateClassTemplateSpecializationDecl (decl_ctx, | |||||
6250 | class_template_decl, | |||||
6251 | tag_decl_kind, | |||||
6252 | template_param_infos); | |||||
6253 | clang_type = ast.CreateClassTemplateSpecializationType (class_specialization_decl); | |||||
6254 | clang_type_was_created = true; | |||||
6255 | ||||||
6256 | GetClangASTContext().SetMetadata (class_template_decl, metadata); | |||||
6257 | GetClangASTContext().SetMetadata (class_specialization_decl, metadata); | |||||
6258 | } | |||||
6259 | } | |||||
6260 | ||||||
6261 | if (!clang_type_was_created) | |||||
6262 | { | |||||
6263 | clang_type_was_created = true; | |||||
6264 | clang_type = ast.CreateRecordType (decl_ctx, | |||||
6265 | accessibility, | |||||
6266 | type_name_cstr, | |||||
6267 | tag_decl_kind, | |||||
6268 | class_language, | |||||
6269 | &metadata); | |||||
6270 | } | |||||
6271 | } | |||||
6272 | ||||||
6273 | // Store a forward declaration to this class type in case any | |||||
6274 | // parameters in any class methods need it for the clang | |||||
6275 | // types for function prototypes. | |||||
6276 | LinkDeclContextToDIE(clang_type.GetDeclContextForType(), die); | |||||
6277 | type_sp.reset (new Type (MakeUserID(die->GetOffset()), | |||||
6278 | this, | |||||
6279 | type_name_const_str, | |||||
6280 | byte_size, | |||||
6281 | NULL__null, | |||||
6282 | LLDB_INVALID_UID(18446744073709551615UL), | |||||
6283 | Type::eEncodingIsUID, | |||||
6284 | &decl, | |||||
6285 | clang_type, | |||||
6286 | Type::eResolveStateForward)); | |||||
6287 | ||||||
6288 | type_sp->SetIsCompleteObjCClass(is_complete_objc_class); | |||||
6289 | ||||||
6290 | ||||||
6291 | // Add our type to the unique type map so we don't | |||||
6292 | // end up creating many copies of the same type over | |||||
6293 | // and over in the ASTContext for our module | |||||
6294 | unique_ast_entry_ap->m_type_sp = type_sp; | |||||
6295 | unique_ast_entry_ap->m_symfile = this; | |||||
6296 | unique_ast_entry_ap->m_cu = dwarf_cu; | |||||
6297 | unique_ast_entry_ap->m_die = die; | |||||
6298 | unique_ast_entry_ap->m_declaration = decl; | |||||
6299 | unique_ast_entry_ap->m_byte_size = byte_size; | |||||
6300 | GetUniqueDWARFASTTypeMap().Insert (type_name_const_str, | |||||
6301 | *unique_ast_entry_ap); | |||||
6302 | ||||||
6303 | if (is_forward_declaration && die->HasChildren()) | |||||
6304 | { | |||||
6305 | // Check to see if the DIE actually has a definition, some version of GCC will | |||||
6306 | // emit DIEs with DW_AT_declaration set to true, but yet still have subprogram, | |||||
6307 | // members, or inheritance, so we can't trust it | |||||
6308 | const DWARFDebugInfoEntry *child_die = die->GetFirstChild(); | |||||
6309 | while (child_die) | |||||
6310 | { | |||||
6311 | switch (child_die->Tag()) | |||||
6312 | { | |||||
6313 | case DW_TAG_inheritance: | |||||
6314 | case DW_TAG_subprogram: | |||||
6315 | case DW_TAG_member: | |||||
6316 | case DW_TAG_APPLE_property: | |||||
6317 | case DW_TAG_class_type: | |||||
6318 | case DW_TAG_structure_type: | |||||
6319 | case DW_TAG_enumeration_type: | |||||
6320 | case DW_TAG_typedef: | |||||
6321 | case DW_TAG_union_type: | |||||
6322 | child_die = NULL__null; | |||||
6323 | is_forward_declaration = false; | |||||
6324 | break; | |||||
6325 | default: | |||||
6326 | child_die = child_die->GetSibling(); | |||||
6327 | break; | |||||
6328 | } | |||||
6329 | } | |||||
6330 | } | |||||
6331 | ||||||
6332 | if (!is_forward_declaration) | |||||
6333 | { | |||||
6334 | // Always start the definition for a class type so that | |||||
6335 | // if the class has child classes or types that require | |||||
6336 | // the class to be created for use as their decl contexts | |||||
6337 | // the class will be ready to accept these child definitions. | |||||
6338 | if (die->HasChildren() == false) | |||||
6339 | { | |||||
6340 | // No children for this struct/union/class, lets finish it | |||||
6341 | clang_type.StartTagDeclarationDefinition (); | |||||
6342 | clang_type.CompleteTagDeclarationDefinition (); | |||||
6343 | ||||||
6344 | if (tag == DW_TAG_structure_type) // this only applies in C | |||||
6345 | { | |||||
6346 | clang::RecordDecl *record_decl = clang_type.GetAsRecordDecl(); | |||||
6347 | ||||||
6348 | if (record_decl) | |||||
6349 | m_record_decl_to_layout_map.insert(std::make_pair(record_decl, LayoutInfo())); | |||||
6350 | } | |||||
6351 | } | |||||
6352 | else if (clang_type_was_created) | |||||
6353 | { | |||||
6354 | // Start the definition if the class is not objective C since | |||||
6355 | // the underlying decls respond to isCompleteDefinition(). Objective | |||||
6356 | // C decls don't respond to isCompleteDefinition() so we can't | |||||
6357 | // start the declaration definition right away. For C++ class/union/structs | |||||
6358 | // we want to start the definition in case the class is needed as the | |||||
6359 | // declaration context for a contained class or type without the need | |||||
6360 | // to complete that type.. | |||||
6361 | ||||||
6362 | if (class_language != eLanguageTypeObjC && | |||||
6363 | class_language != eLanguageTypeObjC_plus_plus) | |||||
6364 | clang_type.StartTagDeclarationDefinition (); | |||||
6365 | ||||||
6366 | // Leave this as a forward declaration until we need | |||||
6367 | // to know the details of the type. lldb_private::Type | |||||
6368 | // will automatically call the SymbolFile virtual function | |||||
6369 | // "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition(Type *)" | |||||
6370 | // When the definition needs to be defined. | |||||
6371 | m_forward_decl_die_to_clang_type[die] = clang_type.GetOpaqueQualType(); | |||||
6372 | m_forward_decl_clang_type_to_die[clang_type.RemoveFastQualifiers().GetOpaqueQualType()] = die; | |||||
6373 | clang_type.SetHasExternalStorage (true); | |||||
6374 | } | |||||
6375 | } | |||||
6376 | ||||||
6377 | } | |||||
6378 | break; | |||||
6379 | ||||||
6380 | case DW_TAG_enumeration_type: | |||||
6381 | { | |||||
6382 | // Set a bit that lets us know that we are currently parsing this | |||||
6383 | m_die_to_type[die] = DIE_IS_BEING_PARSED((lldb_private::Type*)1); | |||||
6384 | ||||||
6385 | lldb::user_id_t encoding_uid = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||||
6386 | ||||||
6387 | const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL__null, attributes); | |||||
6388 | if (num_attributes > 0) | |||||
6389 | { | |||||
6390 | uint32_t i; | |||||
6391 | ||||||
6392 | for (i=0; i<num_attributes; ++i) | |||||
6393 | { | |||||
6394 | attr = attributes.AttributeAtIndex(i); | |||||
6395 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||||
6396 | { | |||||
6397 | switch (attr) | |||||
6398 | { | |||||
6399 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||||
6400 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||||
6401 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||||
6402 | case DW_AT_name: | |||||
6403 | type_name_cstr = form_value.AsCString(&get_debug_str_data()); | |||||
6404 | type_name_const_str.SetCString(type_name_cstr); | |||||
6405 | break; | |||||
6406 | case DW_AT_type: encoding_uid = form_value.Reference(dwarf_cu); break; | |||||
6407 | case DW_AT_byte_size: byte_size = form_value.Unsigned(); break; | |||||
6408 | case DW_AT_accessibility: break; //accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break; | |||||
6409 | case DW_AT_declaration: break; //is_forward_declaration = form_value.Boolean(); break; | |||||
6410 | case DW_AT_allocated: | |||||
6411 | case DW_AT_associated: | |||||
6412 | case DW_AT_bit_stride: | |||||
6413 | case DW_AT_byte_stride: | |||||
6414 | case DW_AT_data_location: | |||||
6415 | case DW_AT_description: | |||||
6416 | case DW_AT_start_scope: | |||||
6417 | case DW_AT_visibility: | |||||
6418 | case DW_AT_specification: | |||||
6419 | case DW_AT_abstract_origin: | |||||
6420 | case DW_AT_sibling: | |||||
6421 | break; | |||||
6422 | } | |||||
6423 | } | |||||
6424 | } | |||||
6425 | ||||||
6426 | DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr); | |||||
6427 | ||||||
6428 | ClangASTType enumerator_clang_type; | |||||
6429 | clang_type.SetClangType (ast.getASTContext(), m_forward_decl_die_to_clang_type.lookup (die)); | |||||
6430 | if (!clang_type) | |||||
6431 | { | |||||
6432 | if (encoding_uid != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||||
6433 | { | |||||
6434 | Type *enumerator_type = ResolveTypeUID(encoding_uid); | |||||
6435 | if (enumerator_type) | |||||
6436 | enumerator_clang_type = enumerator_type->GetClangFullType(); | |||||
6437 | } | |||||
6438 | ||||||
6439 | if (!enumerator_clang_type) | |||||
6440 | enumerator_clang_type = ast.GetBuiltinTypeForDWARFEncodingAndBitSize (NULL__null, | |||||
6441 | DW_ATE_signed, | |||||
6442 | byte_size * 8); | |||||
6443 | ||||||
6444 | clang_type = ast.CreateEnumerationType (type_name_cstr, | |||||
6445 | GetClangDeclContextContainingDIE (dwarf_cu, die, NULL__null), | |||||
6446 | decl, | |||||
6447 | enumerator_clang_type); | |||||
6448 | } | |||||
6449 | else | |||||
6450 | { | |||||
6451 | enumerator_clang_type = clang_type.GetEnumerationIntegerType (); | |||||
6452 | } | |||||
6453 | ||||||
6454 | LinkDeclContextToDIE(clang_type.GetDeclContextForType(), die); | |||||
6455 | ||||||
6456 | type_sp.reset( new Type (MakeUserID(die->GetOffset()), | |||||
6457 | this, | |||||
6458 | type_name_const_str, | |||||
6459 | byte_size, | |||||
6460 | NULL__null, | |||||
6461 | encoding_uid, | |||||
6462 | Type::eEncodingIsUID, | |||||
6463 | &decl, | |||||
6464 | clang_type, | |||||
6465 | Type::eResolveStateForward)); | |||||
6466 | ||||||
6467 | clang_type.StartTagDeclarationDefinition (); | |||||
6468 | if (die->HasChildren()) | |||||
6469 | { | |||||
6470 | SymbolContext cu_sc(GetCompUnitForDWARFCompUnit(dwarf_cu)); | |||||
6471 | bool is_signed = false; | |||||
6472 | enumerator_clang_type.IsIntegerType(is_signed); | |||||
6473 | ParseChildEnumerators(cu_sc, clang_type, is_signed, type_sp->GetByteSize(), dwarf_cu, die); | |||||
6474 | } | |||||
6475 | clang_type.CompleteTagDeclarationDefinition (); | |||||
6476 | } | |||||
6477 | } | |||||
6478 | break; | |||||
6479 | ||||||
6480 | case DW_TAG_inlined_subroutine: | |||||
6481 | case DW_TAG_subprogram: | |||||
6482 | case DW_TAG_subroutine_type: | |||||
6483 | { | |||||
6484 | // Set a bit that lets us know that we are currently parsing this | |||||
6485 | m_die_to_type[die] = DIE_IS_BEING_PARSED((lldb_private::Type*)1); | |||||
6486 | ||||||
6487 | //const char *mangled = NULL; | |||||
6488 | dw_offset_t type_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||||
6489 | bool is_variadic = false; | |||||
6490 | bool is_inline = false; | |||||
6491 | bool is_static = false; | |||||
6492 | bool is_virtual = false; | |||||
6493 | bool is_explicit = false; | |||||
6494 | bool is_artificial = false; | |||||
6495 | dw_offset_t specification_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||||
6496 | dw_offset_t abstract_origin_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||||
6497 | dw_offset_t object_pointer_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||||
6498 | ||||||
6499 | unsigned type_quals = 0; | |||||
6500 | clang::StorageClass storage = clang::SC_None;//, Extern, Static, PrivateExtern | |||||
6501 | ||||||
6502 | ||||||
6503 | const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL__null, attributes); | |||||
6504 | if (num_attributes > 0) | |||||
6505 | { | |||||
6506 | uint32_t i; | |||||
6507 | for (i=0; i<num_attributes; ++i) | |||||
6508 | { | |||||
6509 | attr = attributes.AttributeAtIndex(i); | |||||
6510 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||||
6511 | { | |||||
6512 | switch (attr) | |||||
6513 | { | |||||
6514 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||||
6515 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||||
6516 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||||
6517 | case DW_AT_name: | |||||
6518 | type_name_cstr = form_value.AsCString(&get_debug_str_data()); | |||||
6519 | type_name_const_str.SetCString(type_name_cstr); | |||||
6520 | break; | |||||
6521 | ||||||
6522 | case DW_AT_linkage_name: | |||||
6523 | case DW_AT_MIPS_linkage_name: break; // mangled = form_value.AsCString(&get_debug_str_data()); break; | |||||
6524 | case DW_AT_type: type_die_offset = form_value.Reference(dwarf_cu); break; | |||||
6525 | case DW_AT_accessibility: accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break; | |||||
6526 | case DW_AT_declaration: break; // is_forward_declaration = form_value.Boolean(); break; | |||||
6527 | case DW_AT_inline: is_inline = form_value.Boolean(); break; | |||||
6528 | case DW_AT_virtuality: is_virtual = form_value.Boolean(); break; | |||||
6529 | case DW_AT_explicit: is_explicit = form_value.Boolean(); break; | |||||
6530 | case DW_AT_artificial: is_artificial = form_value.Boolean(); break; | |||||
6531 | ||||||
6532 | ||||||
6533 | case DW_AT_external: | |||||
6534 | if (form_value.Unsigned()) | |||||
6535 | { | |||||
6536 | if (storage == clang::SC_None) | |||||
6537 | storage = clang::SC_Extern; | |||||
6538 | else | |||||
6539 | storage = clang::SC_PrivateExtern; | |||||
6540 | } | |||||
6541 | break; | |||||
6542 | ||||||
6543 | case DW_AT_specification: | |||||
6544 | specification_die_offset = form_value.Reference(dwarf_cu); | |||||
6545 | break; | |||||
6546 | ||||||
6547 | case DW_AT_abstract_origin: | |||||
6548 | abstract_origin_die_offset = form_value.Reference(dwarf_cu); | |||||
6549 | break; | |||||
6550 | ||||||
6551 | case DW_AT_object_pointer: | |||||
6552 | object_pointer_die_offset = form_value.Reference(dwarf_cu); | |||||
6553 | break; | |||||
6554 | ||||||
6555 | case DW_AT_allocated: | |||||
6556 | case DW_AT_associated: | |||||
6557 | case DW_AT_address_class: | |||||
6558 | case DW_AT_calling_convention: | |||||
6559 | case DW_AT_data_location: | |||||
6560 | case DW_AT_elemental: | |||||
6561 | case DW_AT_entry_pc: | |||||
6562 | case DW_AT_frame_base: | |||||
6563 | case DW_AT_high_pc: | |||||
6564 | case DW_AT_low_pc: | |||||
6565 | case DW_AT_prototyped: | |||||
6566 | case DW_AT_pure: | |||||
6567 | case DW_AT_ranges: | |||||
6568 | case DW_AT_recursive: | |||||
6569 | case DW_AT_return_addr: | |||||
6570 | case DW_AT_segment: | |||||
6571 | case DW_AT_start_scope: | |||||
6572 | case DW_AT_static_link: | |||||
6573 | case DW_AT_trampoline: | |||||
6574 | case DW_AT_visibility: | |||||
6575 | case DW_AT_vtable_elem_location: | |||||
6576 | case DW_AT_description: | |||||
6577 | case DW_AT_sibling: | |||||
6578 | break; | |||||
6579 | } | |||||
6580 | } | |||||
6581 | } | |||||
6582 | } | |||||
6583 | ||||||
6584 | std::string object_pointer_name; | |||||
6585 | if (object_pointer_die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||||
6586 | { | |||||
6587 | // Get the name from the object pointer die | |||||
6588 | StreamString s; | |||||
6589 | if (DWARFDebugInfoEntry::GetName (this, dwarf_cu, object_pointer_die_offset, s)) | |||||
6590 | { | |||||
6591 | object_pointer_name.assign(s.GetData()); | |||||
6592 | } | |||||
6593 | } | |||||
6594 | ||||||
6595 | DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr); | |||||
6596 | ||||||
6597 | ClangASTType return_clang_type; | |||||
6598 | Type *func_type = NULL__null; | |||||
6599 | ||||||
6600 | if (type_die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||||
6601 | func_type = ResolveTypeUID(type_die_offset); | |||||
6602 | ||||||
6603 | if (func_type) | |||||
6604 | return_clang_type = func_type->GetClangForwardType(); | |||||
6605 | else | |||||
6606 | return_clang_type = ast.GetBasicType(eBasicTypeVoid); | |||||
6607 | ||||||
6608 | ||||||
6609 | std::vector<ClangASTType> function_param_types; | |||||
6610 | std::vector<clang::ParmVarDecl*> function_param_decls; | |||||
6611 | ||||||
6612 | // Parse the function children for the parameters | |||||
6613 | ||||||
6614 | const DWARFDebugInfoEntry *decl_ctx_die = NULL__null; | |||||
6615 | clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, &decl_ctx_die); | |||||
6616 | const clang::Decl::Kind containing_decl_kind = containing_decl_ctx->getDeclKind(); | |||||
6617 | ||||||
6618 | const bool is_cxx_method = DeclKindIsCXXClass (containing_decl_kind); | |||||
6619 | // Start off static. This will be set to false in ParseChildParameters(...) | |||||
6620 | // if we find a "this" parameters as the first parameter | |||||
6621 | if (is_cxx_method) | |||||
6622 | is_static = true; | |||||
6623 | ||||||
6624 | if (die->HasChildren()) | |||||
6625 | { | |||||
6626 | bool skip_artificial = true; | |||||
6627 | ParseChildParameters (sc, | |||||
6628 | containing_decl_ctx, | |||||
6629 | dwarf_cu, | |||||
6630 | die, | |||||
6631 | skip_artificial, | |||||
6632 | is_static, | |||||
6633 | is_variadic, | |||||
6634 | type_list, | |||||
6635 | function_param_types, | |||||
6636 | function_param_decls, | |||||
6637 | type_quals); | |||||
6638 | } | |||||
6639 | ||||||
6640 | // clang_type will get the function prototype clang type after this call | |||||
6641 | clang_type = ast.CreateFunctionType (return_clang_type, | |||||
6642 | function_param_types.data(), | |||||
6643 | function_param_types.size(), | |||||
6644 | is_variadic, | |||||
6645 | type_quals); | |||||
6646 | ||||||
6647 | bool ignore_containing_context = false; | |||||
6648 | ||||||
6649 | if (type_name_cstr) | |||||
6650 | { | |||||
6651 | bool type_handled = false; | |||||
6652 | if (tag == DW_TAG_subprogram) | |||||
6653 | { | |||||
6654 | ObjCLanguageRuntime::MethodName objc_method (type_name_cstr, true); | |||||
6655 | if (objc_method.IsValid(true)) | |||||
6656 | { | |||||
6657 | ClangASTType class_opaque_type; | |||||
6658 | ConstString class_name(objc_method.GetClassName()); | |||||
6659 | if (class_name) | |||||
6660 | { | |||||
6661 | TypeSP complete_objc_class_type_sp (FindCompleteObjCDefinitionTypeForDIE (NULL__null, class_name, false)); | |||||
6662 | ||||||
6663 | if (complete_objc_class_type_sp) | |||||
6664 | { | |||||
6665 | ClangASTType type_clang_forward_type = complete_objc_class_type_sp->GetClangForwardType(); | |||||
6666 | if (type_clang_forward_type.IsObjCObjectOrInterfaceType ()) | |||||
6667 | class_opaque_type = type_clang_forward_type; | |||||
6668 | } | |||||
6669 | } | |||||
6670 | ||||||
6671 | if (class_opaque_type) | |||||
6672 | { | |||||
6673 | // If accessibility isn't set to anything valid, assume public for | |||||
6674 | // now... | |||||
6675 | if (accessibility == eAccessNone) | |||||
6676 | accessibility = eAccessPublic; | |||||
6677 | ||||||
6678 | clang::ObjCMethodDecl *objc_method_decl = class_opaque_type.AddMethodToObjCObjectType (type_name_cstr, | |||||
6679 | clang_type, | |||||
6680 | accessibility, | |||||
6681 | is_artificial); | |||||
6682 | type_handled = objc_method_decl != NULL__null; | |||||
6683 | if (type_handled) | |||||
6684 | { | |||||
6685 | LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(objc_method_decl), die); | |||||
6686 | GetClangASTContext().SetMetadataAsUserID (objc_method_decl, MakeUserID(die->GetOffset())); | |||||
6687 | } | |||||
6688 | else | |||||
6689 | { | |||||
6690 | GetObjectFile()->GetModule()->ReportError ("{0x%8.8x}: invalid Objective-C method 0x%4.4x (%s), please file a bug and attach the file at the start of this error message", | |||||
6691 | die->GetOffset(), | |||||
6692 | tag, | |||||
6693 | DW_TAG_value_to_name(tag)); | |||||
6694 | } | |||||
6695 | } | |||||
6696 | } | |||||
6697 | else if (is_cxx_method) | |||||
6698 | { | |||||
6699 | // Look at the parent of this DIE and see if is is | |||||
6700 | // a class or struct and see if this is actually a | |||||
6701 | // C++ method | |||||
6702 | Type *class_type = ResolveType (dwarf_cu, decl_ctx_die); | |||||
6703 | if (class_type) | |||||
6704 | { | |||||
6705 | if (class_type->GetID() != MakeUserID(decl_ctx_die->GetOffset())) | |||||
6706 | { | |||||
6707 | // We uniqued the parent class of this function to another class | |||||
6708 | // so we now need to associate all dies under "decl_ctx_die" to | |||||
6709 | // DIEs in the DIE for "class_type"... | |||||
6710 | SymbolFileDWARF *class_symfile = NULL__null; | |||||
6711 | DWARFCompileUnitSP class_type_cu_sp; | |||||
6712 | const DWARFDebugInfoEntry *class_type_die = NULL__null; | |||||
6713 | ||||||
6714 | SymbolFileDWARFDebugMap *debug_map_symfile = GetDebugMapSymfile(); | |||||
6715 | if (debug_map_symfile) | |||||
6716 | { | |||||
6717 | class_symfile = debug_map_symfile->GetSymbolFileByOSOIndex(SymbolFileDWARFDebugMap::GetOSOIndexFromUserID(class_type->GetID())); | |||||
6718 | class_type_die = class_symfile->DebugInfo()->GetDIEPtr(class_type->GetID(), &class_type_cu_sp); | |||||
6719 | } | |||||
6720 | else | |||||
6721 | { | |||||
6722 | class_symfile = this; | |||||
6723 | class_type_die = DebugInfo()->GetDIEPtr(class_type->GetID(), &class_type_cu_sp); | |||||
6724 | } | |||||
6725 | if (class_type_die) | |||||
6726 | { | |||||
6727 | DWARFDIECollection failures; | |||||
6728 | ||||||
6729 | CopyUniqueClassMethodTypes (class_symfile, | |||||
6730 | class_type, | |||||
6731 | class_type_cu_sp.get(), | |||||
6732 | class_type_die, | |||||
6733 | dwarf_cu, | |||||
6734 | decl_ctx_die, | |||||
6735 | failures); | |||||
6736 | ||||||
6737 | // FIXME do something with these failures that's smarter than | |||||
6738 | // just dropping them on the ground. Unfortunately classes don't | |||||
6739 | // like having stuff added to them after their definitions are | |||||
6740 | // complete... | |||||
6741 | ||||||
6742 | type_ptr = m_die_to_type[die]; | |||||
6743 | if (type_ptr && type_ptr != DIE_IS_BEING_PARSED((lldb_private::Type*)1)) | |||||
6744 | { | |||||
6745 | type_sp = type_ptr->shared_from_this(); | |||||
6746 | break; | |||||
6747 | } | |||||
6748 | } | |||||
6749 | } | |||||
6750 | ||||||
6751 | if (specification_die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||||
6752 | { | |||||
6753 | // We have a specification which we are going to base our function | |||||
6754 | // prototype off of, so we need this type to be completed so that the | |||||
6755 | // m_die_to_decl_ctx for the method in the specification has a valid | |||||
6756 | // clang decl context. | |||||
6757 | class_type->GetClangForwardType(); | |||||
6758 | // If we have a specification, then the function type should have been | |||||
6759 | // made with the specification and not with this die. | |||||
6760 | DWARFCompileUnitSP spec_cu_sp; | |||||
6761 | const DWARFDebugInfoEntry* spec_die = DebugInfo()->GetDIEPtr(specification_die_offset, &spec_cu_sp); | |||||
6762 | clang::DeclContext *spec_clang_decl_ctx = GetClangDeclContextForDIE (sc, dwarf_cu, spec_die); | |||||
6763 | if (spec_clang_decl_ctx) | |||||
6764 | { | |||||
6765 | LinkDeclContextToDIE(spec_clang_decl_ctx, die); | |||||
6766 | } | |||||
6767 | else | |||||
6768 | { | |||||
6769 | GetObjectFile()->GetModule()->ReportWarning ("0x%8.8" PRIx64"l" "x" ": DW_AT_specification(0x%8.8x) has no decl\n", | |||||
6770 | MakeUserID(die->GetOffset()), | |||||
6771 | specification_die_offset); | |||||
6772 | } | |||||
6773 | type_handled = true; | |||||
6774 | } | |||||
6775 | else if (abstract_origin_die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||||
6776 | { | |||||
6777 | // We have a specification which we are going to base our function | |||||
6778 | // prototype off of, so we need this type to be completed so that the | |||||
6779 | // m_die_to_decl_ctx for the method in the abstract origin has a valid | |||||
6780 | // clang decl context. | |||||
6781 | class_type->GetClangForwardType(); | |||||
6782 | ||||||
6783 | DWARFCompileUnitSP abs_cu_sp; | |||||
6784 | const DWARFDebugInfoEntry* abs_die = DebugInfo()->GetDIEPtr(abstract_origin_die_offset, &abs_cu_sp); | |||||
6785 | clang::DeclContext *abs_clang_decl_ctx = GetClangDeclContextForDIE (sc, dwarf_cu, abs_die); | |||||
6786 | if (abs_clang_decl_ctx) | |||||
6787 | { | |||||
6788 | LinkDeclContextToDIE (abs_clang_decl_ctx, die); | |||||
6789 | } | |||||
6790 | else | |||||
6791 | { | |||||
6792 | GetObjectFile()->GetModule()->ReportWarning ("0x%8.8" PRIx64"l" "x" ": DW_AT_abstract_origin(0x%8.8x) has no decl\n", | |||||
6793 | MakeUserID(die->GetOffset()), | |||||
6794 | abstract_origin_die_offset); | |||||
6795 | } | |||||
6796 | type_handled = true; | |||||
6797 | } | |||||
6798 | else | |||||
6799 | { | |||||
6800 | ClangASTType class_opaque_type = class_type->GetClangForwardType(); | |||||
6801 | if (class_opaque_type.IsCXXClassType ()) | |||||
6802 | { | |||||
6803 | if (class_opaque_type.IsBeingDefined ()) | |||||
6804 | { | |||||
6805 | // Neither GCC 4.2 nor clang++ currently set a valid accessibility | |||||
6806 | // in the DWARF for C++ methods... Default to public for now... | |||||
6807 | if (accessibility == eAccessNone) | |||||
6808 | accessibility = eAccessPublic; | |||||
6809 | ||||||
6810 | if (!is_static && !die->HasChildren()) | |||||
6811 | { | |||||
6812 | // We have a C++ member function with no children (this pointer!) | |||||
6813 | // and clang will get mad if we try and make a function that isn't | |||||
6814 | // well formed in the DWARF, so we will just skip it... | |||||
6815 | type_handled = true; | |||||
6816 | } | |||||
6817 | else | |||||
6818 | { | |||||
6819 | clang::CXXMethodDecl *cxx_method_decl; | |||||
6820 | // REMOVE THE CRASH DESCRIPTION BELOW | |||||
6821 | Host::SetCrashDescriptionWithFormat ("SymbolFileDWARF::ParseType() is adding a method %s to class %s in DIE 0x%8.8" PRIx64"l" "x" " from %s", | |||||
6822 | type_name_cstr, | |||||
6823 | class_type->GetName().GetCString(), | |||||
6824 | MakeUserID(die->GetOffset()), | |||||
6825 | m_obj_file->GetFileSpec().GetPath().c_str()); | |||||
6826 | ||||||
6827 | const bool is_attr_used = false; | |||||
6828 | ||||||
6829 | cxx_method_decl = class_opaque_type.AddMethodToCXXRecordType (type_name_cstr, | |||||
6830 | clang_type, | |||||
6831 | accessibility, | |||||
6832 | is_virtual, | |||||
6833 | is_static, | |||||
6834 | is_inline, | |||||
6835 | is_explicit, | |||||
6836 | is_attr_used, | |||||
6837 | is_artificial); | |||||
6838 | ||||||
6839 | type_handled = cxx_method_decl != NULL__null; | |||||
6840 | ||||||
6841 | if (type_handled) | |||||
6842 | { | |||||
6843 | LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(cxx_method_decl), die); | |||||
6844 | ||||||
6845 | Host::SetCrashDescription (NULL__null); | |||||
6846 | ||||||
6847 | ||||||
6848 | ClangASTMetadata metadata; | |||||
6849 | metadata.SetUserID(MakeUserID(die->GetOffset())); | |||||
6850 | ||||||
6851 | if (!object_pointer_name.empty()) | |||||
6852 | { | |||||
6853 | metadata.SetObjectPtrName(object_pointer_name.c_str()); | |||||
6854 | if (log) | |||||
6855 | log->Printf ("Setting object pointer name: %s on method object %p.\n", | |||||
6856 | object_pointer_name.c_str(), | |||||
6857 | static_cast<void*>(cxx_method_decl)); | |||||
6858 | } | |||||
6859 | GetClangASTContext().SetMetadata (cxx_method_decl, metadata); | |||||
6860 | } | |||||
6861 | else | |||||
6862 | { | |||||
6863 | ignore_containing_context = true; | |||||
6864 | } | |||||
6865 | } | |||||
6866 | } | |||||
6867 | else | |||||
6868 | { | |||||
6869 | // We were asked to parse the type for a method in a class, yet the | |||||
6870 | // class hasn't been asked to complete itself through the | |||||
6871 | // clang::ExternalASTSource protocol, so we need to just have the | |||||
6872 | // class complete itself and do things the right way, then our | |||||
6873 | // DIE should then have an entry in the m_die_to_type map. First | |||||
6874 | // we need to modify the m_die_to_type so it doesn't think we are | |||||
6875 | // trying to parse this DIE anymore... | |||||
6876 | m_die_to_type[die] = NULL__null; | |||||
6877 | ||||||
6878 | // Now we get the full type to force our class type to complete itself | |||||
6879 | // using the clang::ExternalASTSource protocol which will parse all | |||||
6880 | // base classes and all methods (including the method for this DIE). | |||||
6881 | class_type->GetClangFullType(); | |||||
6882 | ||||||
6883 | // The type for this DIE should have been filled in the function call above | |||||
6884 | type_ptr = m_die_to_type[die]; | |||||
6885 | if (type_ptr && type_ptr != DIE_IS_BEING_PARSED((lldb_private::Type*)1)) | |||||
6886 | { | |||||
6887 | type_sp = type_ptr->shared_from_this(); | |||||
6888 | break; | |||||
6889 | } | |||||
6890 | ||||||
6891 | // FIXME This is fixing some even uglier behavior but we really need to | |||||
6892 | // uniq the methods of each class as well as the class itself. | |||||
6893 | // <rdar://problem/11240464> | |||||
6894 | type_handled = true; | |||||
6895 | } | |||||
6896 | } | |||||
6897 | } | |||||
6898 | } | |||||
6899 | } | |||||
6900 | } | |||||
6901 | ||||||
6902 | if (!type_handled) | |||||
6903 | { | |||||
6904 | // We just have a function that isn't part of a class | |||||
6905 | clang::FunctionDecl *function_decl = ast.CreateFunctionDeclaration (ignore_containing_context ? GetClangASTContext().GetTranslationUnitDecl() : containing_decl_ctx, | |||||
6906 | type_name_cstr, | |||||
6907 | clang_type, | |||||
6908 | storage, | |||||
6909 | is_inline); | |||||
6910 | ||||||
6911 | // if (template_param_infos.GetSize() > 0) | |||||
6912 | // { | |||||
6913 | // clang::FunctionTemplateDecl *func_template_decl = ast.CreateFunctionTemplateDecl (containing_decl_ctx, | |||||
6914 | // function_decl, | |||||
6915 | // type_name_cstr, | |||||
6916 | // template_param_infos); | |||||
6917 | // | |||||
6918 | // ast.CreateFunctionTemplateSpecializationInfo (function_decl, | |||||
6919 | // func_template_decl, | |||||
6920 | // template_param_infos); | |||||
6921 | // } | |||||
6922 | // Add the decl to our DIE to decl context map | |||||
6923 | assert (function_decl)((function_decl) ? static_cast<void> (0) : __assert_fail ("function_decl", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 6923, __PRETTY_FUNCTION__)); | |||||
6924 | LinkDeclContextToDIE(function_decl, die); | |||||
6925 | if (!function_param_decls.empty()) | |||||
6926 | ast.SetFunctionParameters (function_decl, | |||||
6927 | &function_param_decls.front(), | |||||
6928 | function_param_decls.size()); | |||||
6929 | ||||||
6930 | ClangASTMetadata metadata; | |||||
6931 | metadata.SetUserID(MakeUserID(die->GetOffset())); | |||||
6932 | ||||||
6933 | if (!object_pointer_name.empty()) | |||||
6934 | { | |||||
6935 | metadata.SetObjectPtrName(object_pointer_name.c_str()); | |||||
6936 | if (log) | |||||
6937 | log->Printf ("Setting object pointer name: %s on function object %p.", | |||||
6938 | object_pointer_name.c_str(), | |||||
6939 | static_cast<void*>(function_decl)); | |||||
6940 | } | |||||
6941 | GetClangASTContext().SetMetadata (function_decl, metadata); | |||||
6942 | } | |||||
6943 | } | |||||
6944 | type_sp.reset( new Type (MakeUserID(die->GetOffset()), | |||||
6945 | this, | |||||
6946 | type_name_const_str, | |||||
6947 | 0, | |||||
6948 | NULL__null, | |||||
6949 | LLDB_INVALID_UID(18446744073709551615UL), | |||||
6950 | Type::eEncodingIsUID, | |||||
6951 | &decl, | |||||
6952 | clang_type, | |||||
6953 | Type::eResolveStateFull)); | |||||
6954 | assert(type_sp.get())((type_sp.get()) ? static_cast<void> (0) : __assert_fail ("type_sp.get()", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 6954, __PRETTY_FUNCTION__)); | |||||
6955 | } | |||||
6956 | break; | |||||
6957 | ||||||
6958 | case DW_TAG_array_type: | |||||
6959 | { | |||||
6960 | // Set a bit that lets us know that we are currently parsing this | |||||
6961 | m_die_to_type[die] = DIE_IS_BEING_PARSED((lldb_private::Type*)1); | |||||
6962 | ||||||
6963 | lldb::user_id_t type_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||||
6964 | int64_t first_index = 0; | |||||
6965 | uint32_t byte_stride = 0; | |||||
6966 | uint32_t bit_stride = 0; | |||||
6967 | bool is_vector = false; | |||||
6968 | const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL__null, attributes); | |||||
6969 | ||||||
6970 | if (num_attributes > 0) | |||||
6971 | { | |||||
6972 | uint32_t i; | |||||
6973 | for (i=0; i<num_attributes; ++i) | |||||
6974 | { | |||||
6975 | attr = attributes.AttributeAtIndex(i); | |||||
6976 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||||
6977 | { | |||||
6978 | switch (attr) | |||||
6979 | { | |||||
6980 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||||
6981 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||||
6982 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||||
6983 | case DW_AT_name: | |||||
6984 | type_name_cstr = form_value.AsCString(&get_debug_str_data()); | |||||
6985 | type_name_const_str.SetCString(type_name_cstr); | |||||
6986 | break; | |||||
6987 | ||||||
6988 | case DW_AT_type: type_die_offset = form_value.Reference(dwarf_cu); break; | |||||
6989 | case DW_AT_byte_size: break; // byte_size = form_value.Unsigned(); break; | |||||
6990 | case DW_AT_byte_stride: byte_stride = form_value.Unsigned(); break; | |||||
6991 | case DW_AT_bit_stride: bit_stride = form_value.Unsigned(); break; | |||||
6992 | case DW_AT_GNU_vector: is_vector = form_value.Boolean(); break; | |||||
6993 | case DW_AT_accessibility: break; // accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break; | |||||
6994 | case DW_AT_declaration: break; // is_forward_declaration = form_value.Boolean(); break; | |||||
6995 | case DW_AT_allocated: | |||||
6996 | case DW_AT_associated: | |||||
6997 | case DW_AT_data_location: | |||||
6998 | case DW_AT_description: | |||||
6999 | case DW_AT_ordering: | |||||
7000 | case DW_AT_start_scope: | |||||
7001 | case DW_AT_visibility: | |||||
7002 | case DW_AT_specification: | |||||
7003 | case DW_AT_abstract_origin: | |||||
7004 | case DW_AT_sibling: | |||||
7005 | break; | |||||
7006 | } | |||||
7007 | } | |||||
7008 | } | |||||
7009 | ||||||
7010 | DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr); | |||||
7011 | ||||||
7012 | Type *element_type = ResolveTypeUID(type_die_offset); | |||||
7013 | ||||||
7014 | if (element_type) | |||||
7015 | { | |||||
7016 | std::vector<uint64_t> element_orders; | |||||
7017 | ParseChildArrayInfo(sc, dwarf_cu, die, first_index, element_orders, byte_stride, bit_stride); | |||||
7018 | if (byte_stride == 0 && bit_stride == 0) | |||||
7019 | byte_stride = element_type->GetByteSize(); | |||||
7020 | ClangASTType array_element_type = element_type->GetClangForwardType(); | |||||
7021 | uint64_t array_element_bit_stride = byte_stride * 8 + bit_stride; | |||||
7022 | uint64_t num_elements = 0; | |||||
7023 | std::vector<uint64_t>::const_reverse_iterator pos; | |||||
7024 | std::vector<uint64_t>::const_reverse_iterator end = element_orders.rend(); | |||||
7025 | for (pos = element_orders.rbegin(); pos != end; ++pos) | |||||
7026 | { | |||||
7027 | num_elements = *pos; | |||||
7028 | clang_type = ast.CreateArrayType (array_element_type, | |||||
7029 | num_elements, | |||||
7030 | is_vector); | |||||
7031 | array_element_type = clang_type; | |||||
7032 | array_element_bit_stride = num_elements ? array_element_bit_stride * num_elements : array_element_bit_stride; | |||||
7033 | } | |||||
7034 | ConstString empty_name; | |||||
7035 | type_sp.reset( new Type (MakeUserID(die->GetOffset()), | |||||
7036 | this, | |||||
7037 | empty_name, | |||||
7038 | array_element_bit_stride / 8, | |||||
7039 | NULL__null, | |||||
7040 | type_die_offset, | |||||
7041 | Type::eEncodingIsUID, | |||||
7042 | &decl, | |||||
7043 | clang_type, | |||||
7044 | Type::eResolveStateFull)); | |||||
7045 | type_sp->SetEncodingType (element_type); | |||||
7046 | } | |||||
7047 | } | |||||
7048 | } | |||||
7049 | break; | |||||
7050 | ||||||
7051 | case DW_TAG_ptr_to_member_type: | |||||
7052 | { | |||||
7053 | dw_offset_t type_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||||
7054 | dw_offset_t containing_type_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||||
7055 | ||||||
7056 | const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL__null, attributes); | |||||
7057 | ||||||
7058 | if (num_attributes > 0) { | |||||
7059 | uint32_t i; | |||||
7060 | for (i=0; i<num_attributes; ++i) | |||||
7061 | { | |||||
7062 | attr = attributes.AttributeAtIndex(i); | |||||
7063 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||||
7064 | { | |||||
7065 | switch (attr) | |||||
7066 | { | |||||
7067 | case DW_AT_type: | |||||
7068 | type_die_offset = form_value.Reference(dwarf_cu); break; | |||||
7069 | case DW_AT_containing_type: | |||||
7070 | containing_type_die_offset = form_value.Reference(dwarf_cu); break; | |||||
7071 | } | |||||
7072 | } | |||||
7073 | } | |||||
7074 | ||||||
7075 | Type *pointee_type = ResolveTypeUID(type_die_offset); | |||||
7076 | Type *class_type = ResolveTypeUID(containing_type_die_offset); | |||||
7077 | ||||||
7078 | ClangASTType pointee_clang_type = pointee_type->GetClangForwardType(); | |||||
7079 | ClangASTType class_clang_type = class_type->GetClangLayoutType(); | |||||
7080 | ||||||
7081 | clang_type = pointee_clang_type.CreateMemberPointerType(class_clang_type); | |||||
7082 | ||||||
7083 | byte_size = clang_type.GetByteSize(); | |||||
7084 | ||||||
7085 | type_sp.reset( new Type (MakeUserID(die->GetOffset()), | |||||
7086 | this, | |||||
7087 | type_name_const_str, | |||||
7088 | byte_size, | |||||
7089 | NULL__null, | |||||
7090 | LLDB_INVALID_UID(18446744073709551615UL), | |||||
7091 | Type::eEncodingIsUID, | |||||
7092 | NULL__null, | |||||
7093 | clang_type, | |||||
7094 | Type::eResolveStateForward)); | |||||
7095 | } | |||||
7096 | ||||||
7097 | break; | |||||
7098 | } | |||||
7099 | default: | |||||
7100 | GetObjectFile()->GetModule()->ReportError ("{0x%8.8x}: unhandled type tag 0x%4.4x (%s), please file a bug and attach the file at the start of this error message", | |||||
7101 | die->GetOffset(), | |||||
7102 | tag, | |||||
7103 | DW_TAG_value_to_name(tag)); | |||||
7104 | break; | |||||
7105 | } | |||||
7106 | ||||||
7107 | if (type_sp.get()) | |||||
7108 | { | |||||
7109 | const DWARFDebugInfoEntry *sc_parent_die = GetParentSymbolContextDIE(die); | |||||
7110 | dw_tag_t sc_parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0; | |||||
7111 | ||||||
7112 | SymbolContextScope * symbol_context_scope = NULL__null; | |||||
7113 | if (sc_parent_tag == DW_TAG_compile_unit) | |||||
7114 | { | |||||
7115 | symbol_context_scope = sc.comp_unit; | |||||
7116 | } | |||||
7117 | else if (sc.function != NULL__null) | |||||
7118 | { | |||||
7119 | symbol_context_scope = sc.function->GetBlock(true).FindBlockByID(MakeUserID(sc_parent_die->GetOffset())); | |||||
7120 | if (symbol_context_scope == NULL__null) | |||||
7121 | symbol_context_scope = sc.function; | |||||
7122 | } | |||||
7123 | ||||||
7124 | if (symbol_context_scope != NULL__null) | |||||
7125 | { | |||||
7126 | type_sp->SetSymbolContextScope(symbol_context_scope); | |||||
7127 | } | |||||
7128 | ||||||
7129 | // We are ready to put this type into the uniqued list up at the module level | |||||
7130 | type_list->Insert (type_sp); | |||||
7131 | ||||||
7132 | m_die_to_type[die] = type_sp.get(); | |||||
7133 | } | |||||
7134 | } | |||||
7135 | else if (type_ptr != DIE_IS_BEING_PARSED((lldb_private::Type*)1)) | |||||
7136 | { | |||||
7137 | type_sp = type_ptr->shared_from_this(); | |||||
7138 | } | |||||
7139 | } | |||||
7140 | return type_sp; | |||||
7141 | } | |||||
7142 | ||||||
7143 | size_t | |||||
7144 | SymbolFileDWARF::ParseTypes | |||||
7145 | ( | |||||
7146 | const SymbolContext& sc, | |||||
7147 | DWARFCompileUnit* dwarf_cu, | |||||
7148 | const DWARFDebugInfoEntry *die, | |||||
7149 | bool parse_siblings, | |||||
7150 | bool parse_children | |||||
7151 | ) | |||||
7152 | { | |||||
7153 | size_t types_added = 0; | |||||
7154 | while (die != NULL__null) | |||||
7155 | { | |||||
7156 | bool type_is_new = false; | |||||
7157 | if (ParseType(sc, dwarf_cu, die, &type_is_new).get()) | |||||
7158 | { | |||||
7159 | if (type_is_new) | |||||
7160 | ++types_added; | |||||
7161 | } | |||||
7162 | ||||||
7163 | if (parse_children && die->HasChildren()) | |||||
7164 | { | |||||
7165 | if (die->Tag() == DW_TAG_subprogram) | |||||
7166 | { | |||||
7167 | SymbolContext child_sc(sc); | |||||
7168 | child_sc.function = sc.comp_unit->FindFunctionByUID(MakeUserID(die->GetOffset())).get(); | |||||
7169 | types_added += ParseTypes(child_sc, dwarf_cu, die->GetFirstChild(), true, true); | |||||
7170 | } | |||||
7171 | else | |||||
7172 | types_added += ParseTypes(sc, dwarf_cu, die->GetFirstChild(), true, true); | |||||
7173 | } | |||||
7174 | ||||||
7175 | if (parse_siblings) | |||||
7176 | die = die->GetSibling(); | |||||
7177 | else | |||||
7178 | die = NULL__null; | |||||
7179 | } | |||||
7180 | return types_added; | |||||
7181 | } | |||||
7182 | ||||||
7183 | ||||||
7184 | size_t | |||||
7185 | SymbolFileDWARF::ParseFunctionBlocks (const SymbolContext &sc) | |||||
7186 | { | |||||
7187 | assert(sc.comp_unit && sc.function)((sc.comp_unit && sc.function) ? static_cast<void> (0) : __assert_fail ("sc.comp_unit && sc.function", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 7187, __PRETTY_FUNCTION__)); | |||||
7188 | size_t functions_added = 0; | |||||
7189 | DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit); | |||||
7190 | if (dwarf_cu) | |||||
7191 | { | |||||
7192 | dw_offset_t function_die_offset = sc.function->GetID(); | |||||
7193 | const DWARFDebugInfoEntry *function_die = dwarf_cu->GetDIEPtr(function_die_offset); | |||||
7194 | if (function_die) | |||||
7195 | { | |||||
7196 | ParseFunctionBlocks(sc, &sc.function->GetBlock (false), dwarf_cu, function_die, LLDB_INVALID_ADDRESS(18446744073709551615UL), 0); | |||||
7197 | } | |||||
7198 | } | |||||
7199 | ||||||
7200 | return functions_added; | |||||
7201 | } | |||||
7202 | ||||||
7203 | ||||||
7204 | size_t | |||||
7205 | SymbolFileDWARF::ParseTypes (const SymbolContext &sc) | |||||
7206 | { | |||||
7207 | // At least a compile unit must be valid | |||||
7208 | assert(sc.comp_unit)((sc.comp_unit) ? static_cast<void> (0) : __assert_fail ("sc.comp_unit", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 7208, __PRETTY_FUNCTION__)); | |||||
7209 | size_t types_added = 0; | |||||
7210 | DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit); | |||||
7211 | if (dwarf_cu) | |||||
7212 | { | |||||
7213 | if (sc.function) | |||||
7214 | { | |||||
7215 | dw_offset_t function_die_offset = sc.function->GetID(); | |||||
7216 | const DWARFDebugInfoEntry *func_die = dwarf_cu->GetDIEPtr(function_die_offset); | |||||
7217 | if (func_die && func_die->HasChildren()) | |||||
7218 | { | |||||
7219 | types_added = ParseTypes(sc, dwarf_cu, func_die->GetFirstChild(), true, true); | |||||
7220 | } | |||||
7221 | } | |||||
7222 | else | |||||
7223 | { | |||||
7224 | const DWARFDebugInfoEntry *dwarf_cu_die = dwarf_cu->DIE(); | |||||
7225 | if (dwarf_cu_die && dwarf_cu_die->HasChildren()) | |||||
7226 | { | |||||
7227 | types_added = ParseTypes(sc, dwarf_cu, dwarf_cu_die->GetFirstChild(), true, true); | |||||
7228 | } | |||||
7229 | } | |||||
7230 | } | |||||
7231 | ||||||
7232 | return types_added; | |||||
7233 | } | |||||
7234 | ||||||
7235 | size_t | |||||
7236 | SymbolFileDWARF::ParseVariablesForContext (const SymbolContext& sc) | |||||
7237 | { | |||||
7238 | if (sc.comp_unit != NULL__null) | |||||
7239 | { | |||||
7240 | DWARFDebugInfo* info = DebugInfo(); | |||||
7241 | if (info == NULL__null) | |||||
7242 | return 0; | |||||
7243 | ||||||
7244 | if (sc.function) | |||||
7245 | { | |||||
7246 | DWARFCompileUnit* dwarf_cu = info->GetCompileUnitContainingDIE(sc.function->GetID()).get(); | |||||
7247 | ||||||
7248 | if (dwarf_cu == NULL__null) | |||||
7249 | return 0; | |||||
7250 | ||||||
7251 | const DWARFDebugInfoEntry *function_die = dwarf_cu->GetDIEPtr(sc.function->GetID()); | |||||
7252 | ||||||
7253 | dw_addr_t func_lo_pc = function_die->GetAttributeValueAsUnsigned (this, dwarf_cu, DW_AT_low_pc, LLDB_INVALID_ADDRESS(18446744073709551615UL)); | |||||
7254 | if (func_lo_pc != LLDB_INVALID_ADDRESS(18446744073709551615UL)) | |||||
7255 | { | |||||
7256 | const size_t num_variables = ParseVariables(sc, dwarf_cu, func_lo_pc, function_die->GetFirstChild(), true, true); | |||||
7257 | ||||||
7258 | // Let all blocks know they have parse all their variables | |||||
7259 | sc.function->GetBlock (false).SetDidParseVariables (true, true); | |||||
7260 | return num_variables; | |||||
7261 | } | |||||
7262 | } | |||||
7263 | else if (sc.comp_unit) | |||||
7264 | { | |||||
7265 | DWARFCompileUnit* dwarf_cu = info->GetCompileUnit(sc.comp_unit->GetID()).get(); | |||||
7266 | ||||||
7267 | if (dwarf_cu == NULL__null) | |||||
7268 | return 0; | |||||
7269 | ||||||
7270 | uint32_t vars_added = 0; | |||||
7271 | VariableListSP variables (sc.comp_unit->GetVariableList(false)); | |||||
7272 | ||||||
7273 | if (variables.get() == NULL__null) | |||||
7274 | { | |||||
7275 | variables.reset(new VariableList()); | |||||
7276 | sc.comp_unit->SetVariableList(variables); | |||||
7277 | ||||||
7278 | DWARFCompileUnit* match_dwarf_cu = NULL__null; | |||||
7279 | const DWARFDebugInfoEntry* die = NULL__null; | |||||
7280 | DIEArray die_offsets; | |||||
7281 | if (m_using_apple_tables) | |||||
7282 | { | |||||
7283 | if (m_apple_names_ap.get()) | |||||
7284 | { | |||||
7285 | DWARFMappedHash::DIEInfoArray hash_data_array; | |||||
7286 | if (m_apple_names_ap->AppendAllDIEsInRange (dwarf_cu->GetOffset(), | |||||
7287 | dwarf_cu->GetNextCompileUnitOffset(), | |||||
7288 | hash_data_array)) | |||||
7289 | { | |||||
7290 | DWARFMappedHash::ExtractDIEArray (hash_data_array, die_offsets); | |||||
7291 | } | |||||
7292 | } | |||||
7293 | } | |||||
7294 | else | |||||
7295 | { | |||||
7296 | // Index if we already haven't to make sure the compile units | |||||
7297 | // get indexed and make their global DIE index list | |||||
7298 | if (!m_indexed) | |||||
7299 | Index (); | |||||
7300 | ||||||
7301 | m_global_index.FindAllEntriesForCompileUnit (dwarf_cu->GetOffset(), | |||||
7302 | dwarf_cu->GetNextCompileUnitOffset(), | |||||
7303 | die_offsets); | |||||
7304 | } | |||||
7305 | ||||||
7306 | const size_t num_matches = die_offsets.size(); | |||||
7307 | if (num_matches) | |||||
7308 | { | |||||
7309 | DWARFDebugInfo* debug_info = DebugInfo(); | |||||
7310 | for (size_t i=0; i<num_matches; ++i) | |||||
7311 | { | |||||
7312 | const dw_offset_t die_offset = die_offsets[i]; | |||||
7313 | die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &match_dwarf_cu); | |||||
7314 | if (die) | |||||
7315 | { | |||||
7316 | VariableSP var_sp (ParseVariableDIE(sc, dwarf_cu, die, LLDB_INVALID_ADDRESS(18446744073709551615UL))); | |||||
7317 | if (var_sp) | |||||
7318 | { | |||||
7319 | variables->AddVariableIfUnique (var_sp); | |||||
7320 | ++vars_added; | |||||
7321 | } | |||||
7322 | } | |||||
7323 | else | |||||
7324 | { | |||||
7325 | if (m_using_apple_tables) | |||||
7326 | { | |||||
7327 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x)\n", die_offset); | |||||
7328 | } | |||||
7329 | } | |||||
7330 | ||||||
7331 | } | |||||
7332 | } | |||||
7333 | } | |||||
7334 | return vars_added; | |||||
7335 | } | |||||
7336 | } | |||||
7337 | return 0; | |||||
7338 | } | |||||
7339 | ||||||
7340 | ||||||
7341 | VariableSP | |||||
7342 | SymbolFileDWARF::ParseVariableDIE | |||||
7343 | ( | |||||
7344 | const SymbolContext& sc, | |||||
7345 | DWARFCompileUnit* dwarf_cu, | |||||
7346 | const DWARFDebugInfoEntry *die, | |||||
7347 | const lldb::addr_t func_low_pc | |||||
7348 | ) | |||||
7349 | { | |||||
7350 | ||||||
7351 | VariableSP var_sp (m_die_to_variable_sp[die]); | |||||
7352 | if (var_sp) | |||||
7353 | return var_sp; // Already been parsed! | |||||
7354 | ||||||
7355 | const dw_tag_t tag = die->Tag(); | |||||
7356 | ModuleSP module = GetObjectFile()->GetModule(); | |||||
7357 | ||||||
7358 | if ((tag == DW_TAG_variable) || | |||||
7359 | (tag == DW_TAG_constant) || | |||||
7360 | (tag == DW_TAG_formal_parameter && sc.function)) | |||||
7361 | { | |||||
7362 | DWARFDebugInfoEntry::Attributes attributes; | |||||
7363 | const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL__null, attributes); | |||||
7364 | if (num_attributes > 0) | |||||
7365 | { | |||||
7366 | const char *name = NULL__null; | |||||
7367 | const char *mangled = NULL__null; | |||||
7368 | Declaration decl; | |||||
7369 | uint32_t i; | |||||
7370 | lldb::user_id_t type_uid = LLDB_INVALID_UID(18446744073709551615UL); | |||||
7371 | DWARFExpression location; | |||||
7372 | bool is_external = false; | |||||
7373 | bool is_artificial = false; | |||||
7374 | bool location_is_const_value_data = false; | |||||
7375 | bool has_explicit_location = false; | |||||
7376 | DWARFFormValue const_value; | |||||
7377 | //AccessType accessibility = eAccessNone; | |||||
7378 | ||||||
7379 | for (i=0; i<num_attributes; ++i) | |||||
7380 | { | |||||
7381 | dw_attr_t attr = attributes.AttributeAtIndex(i); | |||||
7382 | DWARFFormValue form_value; | |||||
7383 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||||
7384 | { | |||||
7385 | switch (attr) | |||||
7386 | { | |||||
7387 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||||
7388 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||||
7389 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||||
7390 | case DW_AT_name: name = form_value.AsCString(&get_debug_str_data()); break; | |||||
7391 | case DW_AT_linkage_name: | |||||
7392 | case DW_AT_MIPS_linkage_name: mangled = form_value.AsCString(&get_debug_str_data()); break; | |||||
7393 | case DW_AT_type: type_uid = form_value.Reference(dwarf_cu); break; | |||||
7394 | case DW_AT_external: is_external = form_value.Boolean(); break; | |||||
7395 | case DW_AT_const_value: | |||||
7396 | // If we have already found a DW_AT_location attribute, ignore this attribute. | |||||
7397 | if (!has_explicit_location) | |||||
7398 | { | |||||
7399 | location_is_const_value_data = true; | |||||
7400 | // The constant value will be either a block, a data value or a string. | |||||
7401 | const DWARFDataExtractor& debug_info_data = get_debug_info_data(); | |||||
7402 | if (DWARFFormValue::IsBlockForm(form_value.Form())) | |||||
7403 | { | |||||
7404 | // Retrieve the value as a block expression. | |||||
7405 | uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart(); | |||||
7406 | uint32_t block_length = form_value.Unsigned(); | |||||
7407 | location.CopyOpcodeData(module, debug_info_data, block_offset, block_length); | |||||
7408 | } | |||||
7409 | else if (DWARFFormValue::IsDataForm(form_value.Form())) | |||||
7410 | { | |||||
7411 | // Retrieve the value as a data expression. | |||||
7412 | const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64()); | |||||
7413 | uint32_t data_offset = attributes.DIEOffsetAtIndex(i); | |||||
7414 | uint32_t data_length = fixed_form_sizes[form_value.Form()]; | |||||
7415 | if (data_length == 0) | |||||
7416 | { | |||||
7417 | const uint8_t *data_pointer = form_value.BlockData(); | |||||
7418 | if (data_pointer) | |||||
7419 | { | |||||
7420 | data_length = form_value.Unsigned(); | |||||
7421 | } | |||||
7422 | else if (DWARFFormValue::IsDataForm(form_value.Form())) | |||||
7423 | { | |||||
7424 | // we need to get the byte size of the type later after we create the variable | |||||
7425 | const_value = form_value; | |||||
7426 | } | |||||
7427 | } | |||||
7428 | else | |||||
7429 | location.CopyOpcodeData(module, debug_info_data, data_offset, data_length); | |||||
7430 | } | |||||
7431 | else | |||||
7432 | { | |||||
7433 | // Retrieve the value as a string expression. | |||||
7434 | if (form_value.Form() == DW_FORM_strp) | |||||
7435 | { | |||||
7436 | const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64()); | |||||
7437 | uint32_t data_offset = attributes.DIEOffsetAtIndex(i); | |||||
7438 | uint32_t data_length = fixed_form_sizes[form_value.Form()]; | |||||
7439 | location.CopyOpcodeData(module, debug_info_data, data_offset, data_length); | |||||
7440 | } | |||||
7441 | else | |||||
7442 | { | |||||
7443 | const char *str = form_value.AsCString(&debug_info_data); | |||||
7444 | uint32_t string_offset = str - (const char *)debug_info_data.GetDataStart(); | |||||
7445 | uint32_t string_length = strlen(str) + 1; | |||||
7446 | location.CopyOpcodeData(module, debug_info_data, string_offset, string_length); | |||||
7447 | } | |||||
7448 | } | |||||
7449 | } | |||||
7450 | break; | |||||
7451 | case DW_AT_location: | |||||
7452 | { | |||||
7453 | location_is_const_value_data = false; | |||||
7454 | has_explicit_location = true; | |||||
7455 | if (form_value.BlockData()) | |||||
7456 | { | |||||
7457 | const DWARFDataExtractor& debug_info_data = get_debug_info_data(); | |||||
7458 | ||||||
7459 | uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart(); | |||||
7460 | uint32_t block_length = form_value.Unsigned(); | |||||
7461 | location.CopyOpcodeData(module, get_debug_info_data(), block_offset, block_length); | |||||
7462 | } | |||||
7463 | else | |||||
7464 | { | |||||
7465 | const DWARFDataExtractor& debug_loc_data = get_debug_loc_data(); | |||||
7466 | const dw_offset_t debug_loc_offset = form_value.Unsigned(); | |||||
7467 | ||||||
7468 | size_t loc_list_length = DWARFLocationList::Size(debug_loc_data, debug_loc_offset); | |||||
7469 | if (loc_list_length > 0) | |||||
7470 | { | |||||
7471 | location.CopyOpcodeData(module, debug_loc_data, debug_loc_offset, loc_list_length); | |||||
7472 | assert (func_low_pc != LLDB_INVALID_ADDRESS)((func_low_pc != (18446744073709551615UL)) ? static_cast<void > (0) : __assert_fail ("func_low_pc != (18446744073709551615UL)" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 7472, __PRETTY_FUNCTION__)); | |||||
7473 | location.SetLocationListSlide (func_low_pc - dwarf_cu->GetBaseAddress()); | |||||
7474 | } | |||||
7475 | } | |||||
7476 | } | |||||
7477 | break; | |||||
7478 | ||||||
7479 | case DW_AT_artificial: is_artificial = form_value.Boolean(); break; | |||||
7480 | case DW_AT_accessibility: break; //accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break; | |||||
7481 | case DW_AT_declaration: | |||||
7482 | case DW_AT_description: | |||||
7483 | case DW_AT_endianity: | |||||
7484 | case DW_AT_segment: | |||||
7485 | case DW_AT_start_scope: | |||||
7486 | case DW_AT_visibility: | |||||
7487 | default: | |||||
7488 | case DW_AT_abstract_origin: | |||||
7489 | case DW_AT_sibling: | |||||
7490 | case DW_AT_specification: | |||||
7491 | break; | |||||
7492 | } | |||||
7493 | } | |||||
7494 | } | |||||
7495 | ||||||
7496 | ValueType scope = eValueTypeInvalid; | |||||
7497 | ||||||
7498 | const DWARFDebugInfoEntry *sc_parent_die = GetParentSymbolContextDIE(die); | |||||
7499 | dw_tag_t parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0; | |||||
7500 | SymbolContextScope * symbol_context_scope = NULL__null; | |||||
7501 | ||||||
7502 | // DWARF doesn't specify if a DW_TAG_variable is a local, global | |||||
7503 | // or static variable, so we have to do a little digging by | |||||
7504 | // looking at the location of a variable to see if it contains | |||||
7505 | // a DW_OP_addr opcode _somewhere_ in the definition. I say | |||||
7506 | // somewhere because clang likes to combine small global variables | |||||
7507 | // into the same symbol and have locations like: | |||||
7508 | // DW_OP_addr(0x1000), DW_OP_constu(2), DW_OP_plus | |||||
7509 | // So if we don't have a DW_TAG_formal_parameter, we can look at | |||||
7510 | // the location to see if it contains a DW_OP_addr opcode, and | |||||
7511 | // then we can correctly classify our variables. | |||||
7512 | if (tag == DW_TAG_formal_parameter) | |||||
7513 | scope = eValueTypeVariableArgument; | |||||
7514 | else | |||||
7515 | { | |||||
7516 | bool op_error = false; | |||||
7517 | // Check if the location has a DW_OP_addr with any address value... | |||||
7518 | lldb::addr_t location_DW_OP_addr = LLDB_INVALID_ADDRESS(18446744073709551615UL); | |||||
7519 | if (!location_is_const_value_data) | |||||
7520 | { | |||||
7521 | location_DW_OP_addr = location.GetLocation_DW_OP_addr (0, op_error); | |||||
7522 | if (op_error) | |||||
7523 | { | |||||
7524 | StreamString strm; | |||||
7525 | location.DumpLocationForAddress (&strm, eDescriptionLevelFull, 0, 0, NULL__null); | |||||
7526 | GetObjectFile()->GetModule()->ReportError ("0x%8.8x: %s has an invalid location: %s", die->GetOffset(), DW_TAG_value_to_name(die->Tag()), strm.GetString().c_str()); | |||||
7527 | } | |||||
7528 | } | |||||
7529 | ||||||
7530 | if (location_DW_OP_addr != LLDB_INVALID_ADDRESS(18446744073709551615UL)) | |||||
7531 | { | |||||
7532 | if (is_external) | |||||
7533 | scope = eValueTypeVariableGlobal; | |||||
7534 | else | |||||
7535 | scope = eValueTypeVariableStatic; | |||||
7536 | ||||||
7537 | ||||||
7538 | SymbolFileDWARFDebugMap *debug_map_symfile = GetDebugMapSymfile (); | |||||
7539 | ||||||
7540 | if (debug_map_symfile) | |||||
7541 | { | |||||
7542 | // When leaving the DWARF in the .o files on darwin, | |||||
7543 | // when we have a global variable that wasn't initialized, | |||||
7544 | // the .o file might not have allocated a virtual | |||||
7545 | // address for the global variable. In this case it will | |||||
7546 | // have created a symbol for the global variable | |||||
7547 | // that is undefined/data and external and the value will | |||||
7548 | // be the byte size of the variable. When we do the | |||||
7549 | // address map in SymbolFileDWARFDebugMap we rely on | |||||
7550 | // having an address, we need to do some magic here | |||||
7551 | // so we can get the correct address for our global | |||||
7552 | // variable. The address for all of these entries | |||||
7553 | // will be zero, and there will be an undefined symbol | |||||
7554 | // in this object file, and the executable will have | |||||
7555 | // a matching symbol with a good address. So here we | |||||
7556 | // dig up the correct address and replace it in the | |||||
7557 | // location for the variable, and set the variable's | |||||
7558 | // symbol context scope to be that of the main executable | |||||
7559 | // so the file address will resolve correctly. | |||||
7560 | bool linked_oso_file_addr = false; | |||||
7561 | if (is_external && location_DW_OP_addr == 0) | |||||
7562 | { | |||||
7563 | // we have a possible uninitialized extern global | |||||
7564 | ConstString const_name(mangled ? mangled : name); | |||||
7565 | ObjectFile *debug_map_objfile = debug_map_symfile->GetObjectFile(); | |||||
7566 | if (debug_map_objfile) | |||||
7567 | { | |||||
7568 | Symtab *debug_map_symtab = debug_map_objfile->GetSymtab(); | |||||
7569 | if (debug_map_symtab) | |||||
7570 | { | |||||
7571 | Symbol *exe_symbol = debug_map_symtab->FindFirstSymbolWithNameAndType (const_name, | |||||
7572 | eSymbolTypeData, | |||||
7573 | Symtab::eDebugYes, | |||||
7574 | Symtab::eVisibilityExtern); | |||||
7575 | if (exe_symbol) | |||||
7576 | { | |||||
7577 | if (exe_symbol->ValueIsAddress()) | |||||
7578 | { | |||||
7579 | const addr_t exe_file_addr = exe_symbol->GetAddress().GetFileAddress(); | |||||
7580 | if (exe_file_addr != LLDB_INVALID_ADDRESS(18446744073709551615UL)) | |||||
7581 | { | |||||
7582 | if (location.Update_DW_OP_addr (exe_file_addr)) | |||||
7583 | { | |||||
7584 | linked_oso_file_addr = true; | |||||
7585 | symbol_context_scope = exe_symbol; | |||||
7586 | } | |||||
7587 | } | |||||
7588 | } | |||||
7589 | } | |||||
7590 | } | |||||
7591 | } | |||||
7592 | } | |||||
7593 | ||||||
7594 | if (!linked_oso_file_addr) | |||||
7595 | { | |||||
7596 | // The DW_OP_addr is not zero, but it contains a .o file address which | |||||
7597 | // needs to be linked up correctly. | |||||
7598 | const lldb::addr_t exe_file_addr = debug_map_symfile->LinkOSOFileAddress(this, location_DW_OP_addr); | |||||
7599 | if (exe_file_addr != LLDB_INVALID_ADDRESS(18446744073709551615UL)) | |||||
7600 | { | |||||
7601 | // Update the file address for this variable | |||||
7602 | location.Update_DW_OP_addr (exe_file_addr); | |||||
7603 | } | |||||
7604 | else | |||||
7605 | { | |||||
7606 | // Variable didn't make it into the final executable | |||||
7607 | return var_sp; | |||||
7608 | } | |||||
7609 | } | |||||
7610 | } | |||||
7611 | } | |||||
7612 | else | |||||
7613 | { | |||||
7614 | scope = eValueTypeVariableLocal; | |||||
7615 | } | |||||
7616 | } | |||||
7617 | ||||||
7618 | if (symbol_context_scope == NULL__null) | |||||
7619 | { | |||||
7620 | switch (parent_tag) | |||||
7621 | { | |||||
7622 | case DW_TAG_subprogram: | |||||
7623 | case DW_TAG_inlined_subroutine: | |||||
7624 | case DW_TAG_lexical_block: | |||||
7625 | if (sc.function) | |||||
7626 | { | |||||
7627 | symbol_context_scope = sc.function->GetBlock(true).FindBlockByID(MakeUserID(sc_parent_die->GetOffset())); | |||||
7628 | if (symbol_context_scope == NULL__null) | |||||
7629 | symbol_context_scope = sc.function; | |||||
7630 | } | |||||
7631 | break; | |||||
7632 | ||||||
7633 | default: | |||||
7634 | symbol_context_scope = sc.comp_unit; | |||||
7635 | break; | |||||
7636 | } | |||||
7637 | } | |||||
7638 | ||||||
7639 | if (symbol_context_scope) | |||||
7640 | { | |||||
7641 | SymbolFileTypeSP type_sp(new SymbolFileType(*this, type_uid)); | |||||
7642 | ||||||
7643 | if (const_value.Form() && type_sp && type_sp->GetType()) | |||||
7644 | location.CopyOpcodeData(const_value.Unsigned(), type_sp->GetType()->GetByteSize(), dwarf_cu->GetAddressByteSize()); | |||||
7645 | ||||||
7646 | var_sp.reset (new Variable (MakeUserID(die->GetOffset()), | |||||
7647 | name, | |||||
7648 | mangled, | |||||
7649 | type_sp, | |||||
7650 | scope, | |||||
7651 | symbol_context_scope, | |||||
7652 | &decl, | |||||
7653 | location, | |||||
7654 | is_external, | |||||
7655 | is_artificial)); | |||||
7656 | ||||||
7657 | var_sp->SetLocationIsConstantValueData (location_is_const_value_data); | |||||
7658 | } | |||||
7659 | else | |||||
7660 | { | |||||
7661 | // Not ready to parse this variable yet. It might be a global | |||||
7662 | // or static variable that is in a function scope and the function | |||||
7663 | // in the symbol context wasn't filled in yet | |||||
7664 | return var_sp; | |||||
7665 | } | |||||
7666 | } | |||||
7667 | // Cache var_sp even if NULL (the variable was just a specification or | |||||
7668 | // was missing vital information to be able to be displayed in the debugger | |||||
7669 | // (missing location due to optimization, etc)) so we don't re-parse | |||||
7670 | // this DIE over and over later... | |||||
7671 | m_die_to_variable_sp[die] = var_sp; | |||||
7672 | } | |||||
7673 | return var_sp; | |||||
7674 | } | |||||
7675 | ||||||
7676 | ||||||
7677 | const DWARFDebugInfoEntry * | |||||
7678 | SymbolFileDWARF::FindBlockContainingSpecification (dw_offset_t func_die_offset, | |||||
7679 | dw_offset_t spec_block_die_offset, | |||||
7680 | DWARFCompileUnit **result_die_cu_handle) | |||||
7681 | { | |||||
7682 | // Give the concrete function die specified by "func_die_offset", find the | |||||
7683 | // concrete block whose DW_AT_specification or DW_AT_abstract_origin points | |||||
7684 | // to "spec_block_die_offset" | |||||
7685 | DWARFDebugInfo* info = DebugInfo(); | |||||
7686 | ||||||
7687 | const DWARFDebugInfoEntry *die = info->GetDIEPtrWithCompileUnitHint(func_die_offset, result_die_cu_handle); | |||||
7688 | if (die) | |||||
7689 | { | |||||
7690 | assert (*result_die_cu_handle)((*result_die_cu_handle) ? static_cast<void> (0) : __assert_fail ("*result_die_cu_handle", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 7690, __PRETTY_FUNCTION__)); | |||||
7691 | return FindBlockContainingSpecification (*result_die_cu_handle, die, spec_block_die_offset, result_die_cu_handle); | |||||
7692 | } | |||||
7693 | return NULL__null; | |||||
7694 | } | |||||
7695 | ||||||
7696 | ||||||
7697 | const DWARFDebugInfoEntry * | |||||
7698 | SymbolFileDWARF::FindBlockContainingSpecification(DWARFCompileUnit* dwarf_cu, | |||||
7699 | const DWARFDebugInfoEntry *die, | |||||
7700 | dw_offset_t spec_block_die_offset, | |||||
7701 | DWARFCompileUnit **result_die_cu_handle) | |||||
7702 | { | |||||
7703 | if (die) | |||||
7704 | { | |||||
7705 | switch (die->Tag()) | |||||
7706 | { | |||||
7707 | case DW_TAG_subprogram: | |||||
7708 | case DW_TAG_inlined_subroutine: | |||||
7709 | case DW_TAG_lexical_block: | |||||
7710 | { | |||||
7711 | if (die->GetAttributeValueAsReference (this, dwarf_cu, DW_AT_specification, DW_INVALID_OFFSET(~(dw_offset_t)0)) == spec_block_die_offset) | |||||
7712 | { | |||||
7713 | *result_die_cu_handle = dwarf_cu; | |||||
7714 | return die; | |||||
7715 | } | |||||
7716 | ||||||
7717 | if (die->GetAttributeValueAsReference (this, dwarf_cu, DW_AT_abstract_origin, DW_INVALID_OFFSET(~(dw_offset_t)0)) == spec_block_die_offset) | |||||
7718 | { | |||||
7719 | *result_die_cu_handle = dwarf_cu; | |||||
7720 | return die; | |||||
7721 | } | |||||
7722 | } | |||||
7723 | break; | |||||
7724 | } | |||||
7725 | ||||||
7726 | // Give the concrete function die specified by "func_die_offset", find the | |||||
7727 | // concrete block whose DW_AT_specification or DW_AT_abstract_origin points | |||||
7728 | // to "spec_block_die_offset" | |||||
7729 | for (const DWARFDebugInfoEntry *child_die = die->GetFirstChild(); child_die != NULL__null; child_die = child_die->GetSibling()) | |||||
7730 | { | |||||
7731 | const DWARFDebugInfoEntry *result_die = FindBlockContainingSpecification (dwarf_cu, | |||||
7732 | child_die, | |||||
7733 | spec_block_die_offset, | |||||
7734 | result_die_cu_handle); | |||||
7735 | if (result_die) | |||||
7736 | return result_die; | |||||
7737 | } | |||||
7738 | } | |||||
7739 | ||||||
7740 | *result_die_cu_handle = NULL__null; | |||||
7741 | return NULL__null; | |||||
7742 | } | |||||
7743 | ||||||
7744 | size_t | |||||
7745 | SymbolFileDWARF::ParseVariables | |||||
7746 | ( | |||||
7747 | const SymbolContext& sc, | |||||
7748 | DWARFCompileUnit* dwarf_cu, | |||||
7749 | const lldb::addr_t func_low_pc, | |||||
7750 | const DWARFDebugInfoEntry *orig_die, | |||||
7751 | bool parse_siblings, | |||||
7752 | bool parse_children, | |||||
7753 | VariableList* cc_variable_list | |||||
7754 | ) | |||||
7755 | { | |||||
7756 | if (orig_die == NULL__null) | |||||
7757 | return 0; | |||||
7758 | ||||||
7759 | VariableListSP variable_list_sp; | |||||
7760 | ||||||
7761 | size_t vars_added = 0; | |||||
7762 | const DWARFDebugInfoEntry *die = orig_die; | |||||
7763 | while (die != NULL__null) | |||||
7764 | { | |||||
7765 | dw_tag_t tag = die->Tag(); | |||||
7766 | ||||||
7767 | // Check to see if we have already parsed this variable or constant? | |||||
7768 | if (m_die_to_variable_sp[die]) | |||||
7769 | { | |||||
7770 | if (cc_variable_list) | |||||
7771 | cc_variable_list->AddVariableIfUnique (m_die_to_variable_sp[die]); | |||||
7772 | } | |||||
7773 | else | |||||
7774 | { | |||||
7775 | // We haven't already parsed it, lets do that now. | |||||
7776 | if ((tag == DW_TAG_variable) || | |||||
7777 | (tag == DW_TAG_constant) || | |||||
7778 | (tag == DW_TAG_formal_parameter && sc.function)) | |||||
7779 | { | |||||
7780 | if (variable_list_sp.get() == NULL__null) | |||||
7781 | { | |||||
7782 | const DWARFDebugInfoEntry *sc_parent_die = GetParentSymbolContextDIE(orig_die); | |||||
7783 | dw_tag_t parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0; | |||||
7784 | switch (parent_tag) | |||||
7785 | { | |||||
7786 | case DW_TAG_compile_unit: | |||||
7787 | if (sc.comp_unit != NULL__null) | |||||
7788 | { | |||||
7789 | variable_list_sp = sc.comp_unit->GetVariableList(false); | |||||
7790 | if (variable_list_sp.get() == NULL__null) | |||||
7791 | { | |||||
7792 | variable_list_sp.reset(new VariableList()); | |||||
7793 | sc.comp_unit->SetVariableList(variable_list_sp); | |||||
7794 | } | |||||
7795 | } | |||||
7796 | else | |||||
7797 | { | |||||
7798 | GetObjectFile()->GetModule()->ReportError ("parent 0x%8.8" PRIx64"l" "x" " %s with no valid compile unit in symbol context for 0x%8.8" PRIx64"l" "x" " %s.\n", | |||||
7799 | MakeUserID(sc_parent_die->GetOffset()), | |||||
7800 | DW_TAG_value_to_name (parent_tag), | |||||
7801 | MakeUserID(orig_die->GetOffset()), | |||||
7802 | DW_TAG_value_to_name (orig_die->Tag())); | |||||
7803 | } | |||||
7804 | break; | |||||
7805 | ||||||
7806 | case DW_TAG_subprogram: | |||||
7807 | case DW_TAG_inlined_subroutine: | |||||
7808 | case DW_TAG_lexical_block: | |||||
7809 | if (sc.function != NULL__null) | |||||
7810 | { | |||||
7811 | // Check to see if we already have parsed the variables for the given scope | |||||
7812 | ||||||
7813 | Block *block = sc.function->GetBlock(true).FindBlockByID(MakeUserID(sc_parent_die->GetOffset())); | |||||
7814 | if (block == NULL__null) | |||||
7815 | { | |||||
7816 | // This must be a specification or abstract origin with | |||||
7817 | // a concrete block counterpart in the current function. We need | |||||
7818 | // to find the concrete block so we can correctly add the | |||||
7819 | // variable to it | |||||
7820 | DWARFCompileUnit *concrete_block_die_cu = dwarf_cu; | |||||
7821 | const DWARFDebugInfoEntry *concrete_block_die = FindBlockContainingSpecification (sc.function->GetID(), | |||||
7822 | sc_parent_die->GetOffset(), | |||||
7823 | &concrete_block_die_cu); | |||||
7824 | if (concrete_block_die) | |||||
7825 | block = sc.function->GetBlock(true).FindBlockByID(MakeUserID(concrete_block_die->GetOffset())); | |||||
7826 | } | |||||
7827 | ||||||
7828 | if (block != NULL__null) | |||||
7829 | { | |||||
7830 | const bool can_create = false; | |||||
7831 | variable_list_sp = block->GetBlockVariableList (can_create); | |||||
7832 | if (variable_list_sp.get() == NULL__null) | |||||
7833 | { | |||||
7834 | variable_list_sp.reset(new VariableList()); | |||||
7835 | block->SetVariableList(variable_list_sp); | |||||
7836 | } | |||||
7837 | } | |||||
7838 | } | |||||
7839 | break; | |||||
7840 | ||||||
7841 | default: | |||||
7842 | GetObjectFile()->GetModule()->ReportError ("didn't find appropriate parent DIE for variable list for 0x%8.8" PRIx64"l" "x" " %s.\n", | |||||
7843 | MakeUserID(orig_die->GetOffset()), | |||||
7844 | DW_TAG_value_to_name (orig_die->Tag())); | |||||
7845 | break; | |||||
7846 | } | |||||
7847 | } | |||||
7848 | ||||||
7849 | if (variable_list_sp) | |||||
7850 | { | |||||
7851 | VariableSP var_sp (ParseVariableDIE(sc, dwarf_cu, die, func_low_pc)); | |||||
7852 | if (var_sp) | |||||
7853 | { | |||||
7854 | variable_list_sp->AddVariableIfUnique (var_sp); | |||||
7855 | if (cc_variable_list) | |||||
7856 | cc_variable_list->AddVariableIfUnique (var_sp); | |||||
7857 | ++vars_added; | |||||
7858 | } | |||||
7859 | } | |||||
7860 | } | |||||
7861 | } | |||||
7862 | ||||||
7863 | bool skip_children = (sc.function == NULL__null && tag == DW_TAG_subprogram); | |||||
7864 | ||||||
7865 | if (!skip_children && parse_children && die->HasChildren()) | |||||
7866 | { | |||||
7867 | vars_added += ParseVariables(sc, dwarf_cu, func_low_pc, die->GetFirstChild(), true, true, cc_variable_list); | |||||
7868 | } | |||||
7869 | ||||||
7870 | if (parse_siblings) | |||||
7871 | die = die->GetSibling(); | |||||
7872 | else | |||||
7873 | die = NULL__null; | |||||
7874 | } | |||||
7875 | return vars_added; | |||||
7876 | } | |||||
7877 | ||||||
7878 | //------------------------------------------------------------------ | |||||
7879 | // PluginInterface protocol | |||||
7880 | //------------------------------------------------------------------ | |||||
7881 | ConstString | |||||
7882 | SymbolFileDWARF::GetPluginName() | |||||
7883 | { | |||||
7884 | return GetPluginNameStatic(); | |||||
7885 | } | |||||
7886 | ||||||
7887 | uint32_t | |||||
7888 | SymbolFileDWARF::GetPluginVersion() | |||||
7889 | { | |||||
7890 | return 1; | |||||
7891 | } | |||||
7892 | ||||||
7893 | void | |||||
7894 | SymbolFileDWARF::CompleteTagDecl (void *baton, clang::TagDecl *decl) | |||||
7895 | { | |||||
7896 | SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton; | |||||
7897 | ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl); | |||||
7898 | if (clang_type) | |||||
7899 | symbol_file_dwarf->ResolveClangOpaqueTypeDefinition (clang_type); | |||||
7900 | } | |||||
7901 | ||||||
7902 | void | |||||
7903 | SymbolFileDWARF::CompleteObjCInterfaceDecl (void *baton, clang::ObjCInterfaceDecl *decl) | |||||
7904 | { | |||||
7905 | SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton; | |||||
7906 | ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl); | |||||
7907 | if (clang_type) | |||||
7908 | symbol_file_dwarf->ResolveClangOpaqueTypeDefinition (clang_type); | |||||
7909 | } | |||||
7910 | ||||||
7911 | void | |||||
7912 | SymbolFileDWARF::DumpIndexes () | |||||
7913 | { | |||||
7914 | StreamFile s(stdoutstdout, false); | |||||
7915 | ||||||
7916 | s.Printf ("DWARF index for (%s) '%s':", | |||||
7917 | GetObjectFile()->GetModule()->GetArchitecture().GetArchitectureName(), | |||||
7918 | GetObjectFile()->GetFileSpec().GetPath().c_str()); | |||||
7919 | s.Printf("\nFunction basenames:\n"); m_function_basename_index.Dump (&s); | |||||
7920 | s.Printf("\nFunction fullnames:\n"); m_function_fullname_index.Dump (&s); | |||||
7921 | s.Printf("\nFunction methods:\n"); m_function_method_index.Dump (&s); | |||||
7922 | s.Printf("\nFunction selectors:\n"); m_function_selector_index.Dump (&s); | |||||
7923 | s.Printf("\nObjective C class selectors:\n"); m_objc_class_selectors_index.Dump (&s); | |||||
7924 | s.Printf("\nGlobals and statics:\n"); m_global_index.Dump (&s); | |||||
7925 | s.Printf("\nTypes:\n"); m_type_index.Dump (&s); | |||||
7926 | s.Printf("\nNamepaces:\n"); m_namespace_index.Dump (&s); | |||||
7927 | } | |||||
7928 | ||||||
7929 | void | |||||
7930 | SymbolFileDWARF::SearchDeclContext (const clang::DeclContext *decl_context, | |||||
7931 | const char *name, | |||||
7932 | llvm::SmallVectorImpl <clang::NamedDecl *> *results) | |||||
7933 | { | |||||
7934 | DeclContextToDIEMap::iterator iter = m_decl_ctx_to_die.find(decl_context); | |||||
7935 | ||||||
7936 | if (iter == m_decl_ctx_to_die.end()) | |||||
7937 | return; | |||||
7938 | ||||||
7939 | for (DIEPointerSet::iterator pos = iter->second.begin(), end = iter->second.end(); pos != end; ++pos) | |||||
7940 | { | |||||
7941 | const DWARFDebugInfoEntry *context_die = *pos; | |||||
7942 | ||||||
7943 | if (!results) | |||||
7944 | return; | |||||
7945 | ||||||
7946 | DWARFDebugInfo* info = DebugInfo(); | |||||
7947 | ||||||
7948 | DIEArray die_offsets; | |||||
7949 | ||||||
7950 | DWARFCompileUnit* dwarf_cu = NULL__null; | |||||
7951 | const DWARFDebugInfoEntry* die = NULL__null; | |||||
7952 | ||||||
7953 | if (m_using_apple_tables) | |||||
7954 | { | |||||
7955 | if (m_apple_types_ap.get()) | |||||
7956 | m_apple_types_ap->FindByName (name, die_offsets); | |||||
7957 | } | |||||
7958 | else | |||||
7959 | { | |||||
7960 | if (!m_indexed) | |||||
7961 | Index (); | |||||
7962 | ||||||
7963 | m_type_index.Find (ConstString(name), die_offsets); | |||||
7964 | } | |||||
7965 | ||||||
7966 | const size_t num_matches = die_offsets.size(); | |||||
7967 | ||||||
7968 | if (num_matches) | |||||
7969 | { | |||||
7970 | for (size_t i = 0; i < num_matches; ++i) | |||||
7971 | { | |||||
7972 | const dw_offset_t die_offset = die_offsets[i]; | |||||
7973 | die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||||
7974 | ||||||
7975 | if (die->GetParent() != context_die) | |||||
7976 | continue; | |||||
7977 | ||||||
7978 | Type *matching_type = ResolveType (dwarf_cu, die); | |||||
7979 | ||||||
7980 | clang::QualType qual_type = matching_type->GetClangForwardType().GetQualType(); | |||||
7981 | ||||||
7982 | if (const clang::TagType *tag_type = llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr())) | |||||
7983 | { | |||||
7984 | clang::TagDecl *tag_decl = tag_type->getDecl(); | |||||
7985 | results->push_back(tag_decl); | |||||
7986 | } | |||||
7987 | else if (const clang::TypedefType *typedef_type = llvm::dyn_cast<clang::TypedefType>(qual_type.getTypePtr())) | |||||
7988 | { | |||||
7989 | clang::TypedefNameDecl *typedef_decl = typedef_type->getDecl(); | |||||
7990 | results->push_back(typedef_decl); | |||||
7991 | } | |||||
7992 | } | |||||
7993 | } | |||||
7994 | } | |||||
7995 | } | |||||
7996 | ||||||
7997 | void | |||||
7998 | SymbolFileDWARF::FindExternalVisibleDeclsByName (void *baton, | |||||
7999 | const clang::DeclContext *decl_context, | |||||
8000 | clang::DeclarationName decl_name, | |||||
8001 | llvm::SmallVectorImpl <clang::NamedDecl *> *results) | |||||
8002 | { | |||||
8003 | ||||||
8004 | switch (decl_context->getDeclKind()) | |||||
8005 | { | |||||
8006 | case clang::Decl::Namespace: | |||||
8007 | case clang::Decl::TranslationUnit: | |||||
8008 | { | |||||
8009 | SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton; | |||||
8010 | symbol_file_dwarf->SearchDeclContext (decl_context, decl_name.getAsString().c_str(), results); | |||||
8011 | } | |||||
8012 | break; | |||||
8013 | default: | |||||
8014 | break; | |||||
8015 | } | |||||
8016 | } | |||||
8017 | ||||||
8018 | bool | |||||
8019 | SymbolFileDWARF::LayoutRecordType (void *baton, | |||||
8020 | const clang::RecordDecl *record_decl, | |||||
8021 | uint64_t &size, | |||||
8022 | uint64_t &alignment, | |||||
8023 | llvm::DenseMap <const clang::FieldDecl *, uint64_t> &field_offsets, | |||||
8024 | llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets, | |||||
8025 | llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets) | |||||
8026 | { | |||||
8027 | SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton; | |||||
8028 | return symbol_file_dwarf->LayoutRecordType (record_decl, size, alignment, field_offsets, base_offsets, vbase_offsets); | |||||
8029 | } | |||||
8030 | ||||||
8031 | ||||||
8032 | bool | |||||
8033 | SymbolFileDWARF::LayoutRecordType (const clang::RecordDecl *record_decl, | |||||
8034 | uint64_t &bit_size, | |||||
8035 | uint64_t &alignment, | |||||
8036 | llvm::DenseMap <const clang::FieldDecl *, uint64_t> &field_offsets, | |||||
8037 | llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets, | |||||
8038 | llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets) | |||||
8039 | { | |||||
8040 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO(1u << 1))); | |||||
8041 | RecordDeclToLayoutMap::iterator pos = m_record_decl_to_layout_map.find (record_decl); | |||||
8042 | bool success = false; | |||||
8043 | base_offsets.clear(); | |||||
8044 | vbase_offsets.clear(); | |||||
8045 | if (pos != m_record_decl_to_layout_map.end()) | |||||
8046 | { | |||||
8047 | bit_size = pos->second.bit_size; | |||||
8048 | alignment = pos->second.alignment; | |||||
8049 | field_offsets.swap(pos->second.field_offsets); | |||||
8050 | base_offsets.swap (pos->second.base_offsets); | |||||
8051 | vbase_offsets.swap (pos->second.vbase_offsets); | |||||
8052 | m_record_decl_to_layout_map.erase(pos); | |||||
8053 | success = true; | |||||
8054 | } | |||||
8055 | else | |||||
8056 | { | |||||
8057 | bit_size = 0; | |||||
8058 | alignment = 0; | |||||
8059 | field_offsets.clear(); | |||||
8060 | } | |||||
8061 | ||||||
8062 | if (log) | |||||
8063 | GetObjectFile()->GetModule()->LogMessage (log, | |||||
8064 | "SymbolFileDWARF::LayoutRecordType (record_decl = %p, bit_size = %" PRIu64"l" "u" ", alignment = %" PRIu64"l" "u" ", field_offsets[%u],base_offsets[%u], vbase_offsets[%u]) success = %i", | |||||
8065 | static_cast<const void*>(record_decl), | |||||
8066 | bit_size, alignment, | |||||
8067 | static_cast<uint32_t>(field_offsets.size()), | |||||
8068 | static_cast<uint32_t>(base_offsets.size()), | |||||
8069 | static_cast<uint32_t>(vbase_offsets.size()), | |||||
8070 | success); | |||||
8071 | return success; | |||||
8072 | } | |||||
8073 | ||||||
8074 | ||||||
8075 | SymbolFileDWARFDebugMap * | |||||
8076 | SymbolFileDWARF::GetDebugMapSymfile () | |||||
8077 | { | |||||
8078 | if (m_debug_map_symfile == NULL__null && !m_debug_map_module_wp.expired()) | |||||
8079 | { | |||||
8080 | lldb::ModuleSP module_sp (m_debug_map_module_wp.lock()); | |||||
8081 | if (module_sp) | |||||
8082 | { | |||||
8083 | SymbolVendor *sym_vendor = module_sp->GetSymbolVendor(); | |||||
8084 | if (sym_vendor) | |||||
8085 | m_debug_map_symfile = (SymbolFileDWARFDebugMap *)sym_vendor->GetSymbolFile(); | |||||
8086 | } | |||||
8087 | } | |||||
8088 | return m_debug_map_symfile; | |||||
8089 | } | |||||
8090 | ||||||
8091 |