File: | tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp |
Warning: | line 383, column 15 Null pointer passed as an argument to a 'nonnull' parameter |
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1 | //===-- DWARFASTParserClang.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 <stdlib.h> | |||
11 | ||||
12 | #include "DWARFASTParserClang.h" | |||
13 | #include "DWARFDIE.h" | |||
14 | #include "DWARFDIECollection.h" | |||
15 | #include "DWARFDebugInfo.h" | |||
16 | #include "DWARFDeclContext.h" | |||
17 | #include "DWARFDefines.h" | |||
18 | #include "SymbolFileDWARF.h" | |||
19 | #include "SymbolFileDWARFDwo.h" | |||
20 | #include "SymbolFileDWARFDebugMap.h" | |||
21 | #include "UniqueDWARFASTType.h" | |||
22 | ||||
23 | #include "Plugins/Language/ObjC/ObjCLanguage.h" | |||
24 | #include "lldb/Core/Module.h" | |||
25 | #include "lldb/Core/Value.h" | |||
26 | #include "lldb/Host/Host.h" | |||
27 | #include "lldb/Symbol/ClangASTImporter.h" | |||
28 | #include "lldb/Symbol/ClangExternalASTSourceCommon.h" | |||
29 | #include "lldb/Symbol/ClangUtil.h" | |||
30 | #include "lldb/Symbol/CompileUnit.h" | |||
31 | #include "lldb/Symbol/Function.h" | |||
32 | #include "lldb/Symbol/ObjectFile.h" | |||
33 | #include "lldb/Symbol/SymbolVendor.h" | |||
34 | #include "lldb/Symbol/TypeList.h" | |||
35 | #include "lldb/Symbol/TypeMap.h" | |||
36 | #include "lldb/Target/Language.h" | |||
37 | #include "lldb/Utility/LLDBAssert.h" | |||
38 | #include "lldb/Utility/Log.h" | |||
39 | #include "lldb/Utility/StreamString.h" | |||
40 | ||||
41 | #include "clang/AST/CXXInheritance.h" | |||
42 | #include "clang/AST/DeclCXX.h" | |||
43 | #include "clang/AST/DeclObjC.h" | |||
44 | #include "clang/AST/DeclTemplate.h" | |||
45 | ||||
46 | #include <map> | |||
47 | #include <vector> | |||
48 | ||||
49 | //#define ENABLE_DEBUG_PRINTF // COMMENT OUT THIS LINE PRIOR TO CHECKIN | |||
50 | ||||
51 | #ifdef ENABLE_DEBUG_PRINTF | |||
52 | #include <stdio.h> | |||
53 | #define DEBUG_PRINTF(fmt, ...) printf(fmt, __VA_ARGS__) | |||
54 | #else | |||
55 | #define DEBUG_PRINTF(fmt, ...) | |||
56 | #endif | |||
57 | ||||
58 | using namespace lldb; | |||
59 | using namespace lldb_private; | |||
60 | DWARFASTParserClang::DWARFASTParserClang(ClangASTContext &ast) | |||
61 | : m_ast(ast), m_die_to_decl_ctx(), m_decl_ctx_to_die() {} | |||
62 | ||||
63 | DWARFASTParserClang::~DWARFASTParserClang() {} | |||
64 | ||||
65 | static AccessType DW_ACCESS_to_AccessType(uint32_t dwarf_accessibility) { | |||
66 | switch (dwarf_accessibility) { | |||
67 | case DW_ACCESS_public: | |||
68 | return eAccessPublic; | |||
69 | case DW_ACCESS_private: | |||
70 | return eAccessPrivate; | |||
71 | case DW_ACCESS_protected: | |||
72 | return eAccessProtected; | |||
73 | default: | |||
74 | break; | |||
75 | } | |||
76 | return eAccessNone; | |||
77 | } | |||
78 | ||||
79 | static bool DeclKindIsCXXClass(clang::Decl::Kind decl_kind) { | |||
80 | switch (decl_kind) { | |||
81 | case clang::Decl::CXXRecord: | |||
82 | case clang::Decl::ClassTemplateSpecialization: | |||
83 | return true; | |||
84 | default: | |||
85 | break; | |||
86 | } | |||
87 | return false; | |||
88 | } | |||
89 | ||||
90 | struct BitfieldInfo { | |||
91 | uint64_t bit_size; | |||
92 | uint64_t bit_offset; | |||
93 | ||||
94 | BitfieldInfo() | |||
95 | : bit_size(LLDB_INVALID_ADDRESS(18446744073709551615UL)), bit_offset(LLDB_INVALID_ADDRESS(18446744073709551615UL)) {} | |||
96 | ||||
97 | void Clear() { | |||
98 | bit_size = LLDB_INVALID_ADDRESS(18446744073709551615UL); | |||
99 | bit_offset = LLDB_INVALID_ADDRESS(18446744073709551615UL); | |||
100 | } | |||
101 | ||||
102 | bool IsValid() const { | |||
103 | return (bit_size != LLDB_INVALID_ADDRESS(18446744073709551615UL)) && | |||
104 | (bit_offset != LLDB_INVALID_ADDRESS(18446744073709551615UL)); | |||
105 | } | |||
106 | ||||
107 | bool NextBitfieldOffsetIsValid(const uint64_t next_bit_offset) const { | |||
108 | if (IsValid()) { | |||
109 | // This bitfield info is valid, so any subsequent bitfields must not | |||
110 | // overlap and must be at a higher bit offset than any previous bitfield | |||
111 | // + size. | |||
112 | return (bit_size + bit_offset) <= next_bit_offset; | |||
113 | } else { | |||
114 | // If the this BitfieldInfo is not valid, then any offset isOK | |||
115 | return true; | |||
116 | } | |||
117 | } | |||
118 | }; | |||
119 | ||||
120 | ClangASTImporter &DWARFASTParserClang::GetClangASTImporter() { | |||
121 | if (!m_clang_ast_importer_ap) { | |||
122 | m_clang_ast_importer_ap.reset(new ClangASTImporter); | |||
123 | } | |||
124 | return *m_clang_ast_importer_ap; | |||
125 | } | |||
126 | ||||
127 | /// Detect a forward declaration that is nested in a DW_TAG_module. | |||
128 | static bool isClangModuleFwdDecl(const DWARFDIE &Die) { | |||
129 | if (!Die.GetAttributeValueAsUnsigned(DW_AT_declaration, 0)) | |||
130 | return false; | |||
131 | auto Parent = Die.GetParent(); | |||
132 | while (Parent.IsValid()) { | |||
133 | if (Parent.Tag() == DW_TAG_module) | |||
134 | return true; | |||
135 | Parent = Parent.GetParent(); | |||
136 | } | |||
137 | return false; | |||
138 | } | |||
139 | ||||
140 | TypeSP DWARFASTParserClang::ParseTypeFromDWO(const DWARFDIE &die, Log *log) { | |||
141 | ModuleSP dwo_module_sp = die.GetContainingDWOModule(); | |||
142 | if (!dwo_module_sp) | |||
143 | return TypeSP(); | |||
144 | ||||
145 | // This type comes from an external DWO module. | |||
146 | std::vector<CompilerContext> dwo_context; | |||
147 | die.GetDWOContext(dwo_context); | |||
148 | TypeMap dwo_types; | |||
149 | ||||
150 | if (!dwo_module_sp->GetSymbolVendor()->FindTypes(dwo_context, true, | |||
151 | dwo_types)) { | |||
152 | if (!isClangModuleFwdDecl(die)) | |||
153 | return TypeSP(); | |||
154 | ||||
155 | // Since this this type is defined in one of the Clang modules imported by | |||
156 | // this symbol file, search all of them. | |||
157 | auto *SymFile = die.GetCU()->GetSymbolFileDWARF(); | |||
158 | for (const auto &NameModule : SymFile->getExternalTypeModules()) { | |||
159 | if (!NameModule.second) | |||
160 | continue; | |||
161 | SymbolVendor *SymVendor = NameModule.second->GetSymbolVendor(); | |||
162 | if (SymVendor->FindTypes(dwo_context, true, dwo_types)) | |||
163 | break; | |||
164 | } | |||
165 | } | |||
166 | ||||
167 | const size_t num_dwo_types = dwo_types.GetSize(); | |||
168 | if (num_dwo_types != 1) | |||
169 | return TypeSP(); | |||
170 | ||||
171 | // We found a real definition for this type in the Clang module, so lets use | |||
172 | // it and cache the fact that we found a complete type for this die. | |||
173 | TypeSP dwo_type_sp = dwo_types.GetTypeAtIndex(0); | |||
174 | if (!dwo_type_sp) | |||
175 | return TypeSP(); | |||
176 | ||||
177 | lldb_private::CompilerType dwo_type = dwo_type_sp->GetForwardCompilerType(); | |||
178 | ||||
179 | lldb_private::CompilerType type = | |||
180 | GetClangASTImporter().CopyType(m_ast, dwo_type); | |||
181 | ||||
182 | if (!type) | |||
183 | return TypeSP(); | |||
184 | ||||
185 | SymbolFileDWARF *dwarf = die.GetDWARF(); | |||
186 | TypeSP type_sp(new Type( | |||
187 | die.GetID(), dwarf, dwo_type_sp->GetName(), dwo_type_sp->GetByteSize(), | |||
188 | NULL__null, LLDB_INVALID_UID(18446744073709551615UL), Type::eEncodingInvalid, | |||
189 | &dwo_type_sp->GetDeclaration(), type, Type::eResolveStateForward)); | |||
190 | ||||
191 | dwarf->GetTypeList()->Insert(type_sp); | |||
192 | dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get(); | |||
193 | clang::TagDecl *tag_decl = ClangASTContext::GetAsTagDecl(type); | |||
194 | if (tag_decl) | |||
195 | LinkDeclContextToDIE(tag_decl, die); | |||
196 | else { | |||
197 | clang::DeclContext *defn_decl_ctx = GetCachedClangDeclContextForDIE(die); | |||
198 | if (defn_decl_ctx) | |||
199 | LinkDeclContextToDIE(defn_decl_ctx, die); | |||
200 | } | |||
201 | ||||
202 | return type_sp; | |||
203 | } | |||
204 | ||||
205 | static void CompleteExternalTagDeclType(ClangASTImporter &ast_importer, | |||
206 | clang::DeclContext *decl_ctx, | |||
207 | DWARFDIE die, | |||
208 | const char *type_name_cstr) { | |||
209 | auto *tag_decl_ctx = clang::dyn_cast<clang::TagDecl>(decl_ctx); | |||
210 | if (!tag_decl_ctx) | |||
211 | return; | |||
212 | ||||
213 | // If this type was not imported from an external AST, there's nothing to do. | |||
214 | CompilerType type = ClangASTContext::GetTypeForDecl(tag_decl_ctx); | |||
215 | if (!type || !ast_importer.CanImport(type)) | |||
216 | return; | |||
217 | ||||
218 | auto qual_type = ClangUtil::GetQualType(type); | |||
219 | if (!ast_importer.RequireCompleteType(qual_type)) { | |||
220 | die.GetDWARF()->GetObjectFile()->GetModule()->ReportError( | |||
221 | "Unable to complete the Decl context for DIE '%s' at offset " | |||
222 | "0x%8.8x.\nPlease file a bug report.", | |||
223 | type_name_cstr ? type_name_cstr : "", die.GetOffset()); | |||
224 | // We need to make the type look complete otherwise, we might crash in | |||
225 | // Clang when adding children. | |||
226 | if (ClangASTContext::StartTagDeclarationDefinition(type)) | |||
227 | ClangASTContext::CompleteTagDeclarationDefinition(type); | |||
228 | } | |||
229 | } | |||
230 | ||||
231 | TypeSP DWARFASTParserClang::ParseTypeFromDWARF(const SymbolContext &sc, | |||
232 | const DWARFDIE &die, Log *log, | |||
233 | bool *type_is_new_ptr) { | |||
234 | TypeSP type_sp; | |||
235 | ||||
236 | if (type_is_new_ptr) | |||
| ||||
237 | *type_is_new_ptr = false; | |||
238 | ||||
239 | AccessType accessibility = eAccessNone; | |||
240 | if (die) { | |||
241 | SymbolFileDWARF *dwarf = die.GetDWARF(); | |||
242 | if (log) { | |||
243 | DWARFDIE context_die; | |||
244 | clang::DeclContext *context = | |||
245 | GetClangDeclContextContainingDIE(die, &context_die); | |||
246 | ||||
247 | dwarf->GetObjectFile()->GetModule()->LogMessage( | |||
248 | log, "SymbolFileDWARF::ParseType (die = 0x%8.8x, decl_ctx = %p (die " | |||
249 | "0x%8.8x)) %s name = '%s')", | |||
250 | die.GetOffset(), static_cast<void *>(context), | |||
251 | context_die.GetOffset(), die.GetTagAsCString(), die.GetName()); | |||
252 | } | |||
253 | Type *type_ptr = dwarf->GetDIEToType().lookup(die.GetDIE()); | |||
254 | TypeList *type_list = dwarf->GetTypeList(); | |||
255 | if (type_ptr == NULL__null) { | |||
256 | if (type_is_new_ptr) | |||
257 | *type_is_new_ptr = true; | |||
258 | ||||
259 | const dw_tag_t tag = die.Tag(); | |||
260 | ||||
261 | bool is_forward_declaration = false; | |||
262 | DWARFAttributes attributes; | |||
263 | const char *type_name_cstr = NULL__null; | |||
264 | const char *mangled_name_cstr = NULL__null; | |||
265 | ConstString type_name_const_str; | |||
266 | Type::ResolveState resolve_state = Type::eResolveStateUnresolved; | |||
267 | uint64_t byte_size = 0; | |||
268 | Declaration decl; | |||
269 | ||||
270 | Type::EncodingDataType encoding_data_type = Type::eEncodingIsUID; | |||
271 | CompilerType clang_type; | |||
272 | DWARFFormValue form_value; | |||
273 | ||||
274 | dw_attr_t attr; | |||
275 | ||||
276 | switch (tag) { | |||
277 | case DW_TAG_typedef: | |||
278 | case DW_TAG_base_type: | |||
279 | case DW_TAG_pointer_type: | |||
280 | case DW_TAG_reference_type: | |||
281 | case DW_TAG_rvalue_reference_type: | |||
282 | case DW_TAG_const_type: | |||
283 | case DW_TAG_restrict_type: | |||
284 | case DW_TAG_volatile_type: | |||
285 | case DW_TAG_unspecified_type: { | |||
286 | // Set a bit that lets us know that we are currently parsing this | |||
287 | dwarf->GetDIEToType()[die.GetDIE()] = DIE_IS_BEING_PARSED((lldb_private::Type *)1); | |||
288 | ||||
289 | const size_t num_attributes = die.GetAttributes(attributes); | |||
290 | uint32_t encoding = 0; | |||
291 | DWARFFormValue encoding_uid; | |||
292 | ||||
293 | if (num_attributes > 0) { | |||
294 | uint32_t i; | |||
295 | for (i = 0; i < num_attributes; ++i) { | |||
296 | attr = attributes.AttributeAtIndex(i); | |||
297 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { | |||
298 | switch (attr) { | |||
299 | case DW_AT_decl_file: | |||
300 | decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex( | |||
301 | form_value.Unsigned())); | |||
302 | break; | |||
303 | case DW_AT_decl_line: | |||
304 | decl.SetLine(form_value.Unsigned()); | |||
305 | break; | |||
306 | case DW_AT_decl_column: | |||
307 | decl.SetColumn(form_value.Unsigned()); | |||
308 | break; | |||
309 | case DW_AT_name: | |||
310 | ||||
311 | type_name_cstr = form_value.AsCString(); | |||
312 | // Work around a bug in llvm-gcc where they give a name to a | |||
313 | // reference type which doesn't include the "&"... | |||
314 | if (tag == DW_TAG_reference_type) { | |||
315 | if (strchr(type_name_cstr, '&') == NULL__null) | |||
316 | type_name_cstr = NULL__null; | |||
317 | } | |||
318 | if (type_name_cstr) | |||
319 | type_name_const_str.SetCString(type_name_cstr); | |||
320 | break; | |||
321 | case DW_AT_byte_size: | |||
322 | byte_size = form_value.Unsigned(); | |||
323 | break; | |||
324 | case DW_AT_encoding: | |||
325 | encoding = form_value.Unsigned(); | |||
326 | break; | |||
327 | case DW_AT_type: | |||
328 | encoding_uid = form_value; | |||
329 | break; | |||
330 | default: | |||
331 | case DW_AT_sibling: | |||
332 | break; | |||
333 | } | |||
334 | } | |||
335 | } | |||
336 | } | |||
337 | ||||
338 | if (tag == DW_TAG_typedef && encoding_uid.IsValid()) { | |||
339 | // Try to parse a typedef from the DWO file first as modules can | |||
340 | // contain typedef'ed structures that have no names like: | |||
341 | // | |||
342 | // typedef struct { int a; } Foo; | |||
343 | // | |||
344 | // In this case we will have a structure with no name and a typedef | |||
345 | // named "Foo" that points to this unnamed structure. The name in the | |||
346 | // typedef is the only identifier for the struct, so always try to | |||
347 | // get typedefs from DWO files if possible. | |||
348 | // | |||
349 | // The type_sp returned will be empty if the typedef doesn't exist in | |||
350 | // a DWO file, so it is cheap to call this function just to check. | |||
351 | // | |||
352 | // If we don't do this we end up creating a TypeSP that says this is | |||
353 | // a typedef to type 0x123 (the DW_AT_type value would be 0x123 in | |||
354 | // the DW_TAG_typedef), and this is the unnamed structure type. We | |||
355 | // will have a hard time tracking down an unnammed structure type in | |||
356 | // the module DWO file, so we make sure we don't get into this | |||
357 | // situation by always resolving typedefs from the DWO file. | |||
358 | const DWARFDIE encoding_die = dwarf->GetDIE(DIERef(encoding_uid)); | |||
359 | ||||
360 | // First make sure that the die that this is typedef'ed to _is_ just | |||
361 | // a declaration (DW_AT_declaration == 1), not a full definition | |||
362 | // since template types can't be represented in modules since only | |||
363 | // concrete instances of templates are ever emitted and modules won't | |||
364 | // contain those | |||
365 | if (encoding_die && | |||
366 | encoding_die.GetAttributeValueAsUnsigned(DW_AT_declaration, 0) == | |||
367 | 1) { | |||
368 | type_sp = ParseTypeFromDWO(die, log); | |||
369 | if (type_sp) | |||
370 | return type_sp; | |||
371 | } | |||
372 | } | |||
373 | ||||
374 | DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\") type => 0x%8.8lx\n", | |||
375 | die.GetID(), DW_TAG_value_to_name(tag), type_name_cstr, | |||
376 | encoding_uid.Reference()); | |||
377 | ||||
378 | switch (tag) { | |||
379 | default: | |||
380 | break; | |||
381 | ||||
382 | case DW_TAG_unspecified_type: | |||
383 | if (strcmp(type_name_cstr, "nullptr_t") == 0 || | |||
| ||||
384 | strcmp(type_name_cstr, "decltype(nullptr)") == 0) { | |||
385 | resolve_state = Type::eResolveStateFull; | |||
386 | clang_type = m_ast.GetBasicType(eBasicTypeNullPtr); | |||
387 | break; | |||
388 | } | |||
389 | // Fall through to base type below in case we can handle the type | |||
390 | // there... | |||
391 | LLVM_FALLTHROUGH[[clang::fallthrough]]; | |||
392 | ||||
393 | case DW_TAG_base_type: | |||
394 | resolve_state = Type::eResolveStateFull; | |||
395 | clang_type = m_ast.GetBuiltinTypeForDWARFEncodingAndBitSize( | |||
396 | type_name_cstr, encoding, byte_size * 8); | |||
397 | break; | |||
398 | ||||
399 | case DW_TAG_pointer_type: | |||
400 | encoding_data_type = Type::eEncodingIsPointerUID; | |||
401 | break; | |||
402 | case DW_TAG_reference_type: | |||
403 | encoding_data_type = Type::eEncodingIsLValueReferenceUID; | |||
404 | break; | |||
405 | case DW_TAG_rvalue_reference_type: | |||
406 | encoding_data_type = Type::eEncodingIsRValueReferenceUID; | |||
407 | break; | |||
408 | case DW_TAG_typedef: | |||
409 | encoding_data_type = Type::eEncodingIsTypedefUID; | |||
410 | break; | |||
411 | case DW_TAG_const_type: | |||
412 | encoding_data_type = Type::eEncodingIsConstUID; | |||
413 | break; | |||
414 | case DW_TAG_restrict_type: | |||
415 | encoding_data_type = Type::eEncodingIsRestrictUID; | |||
416 | break; | |||
417 | case DW_TAG_volatile_type: | |||
418 | encoding_data_type = Type::eEncodingIsVolatileUID; | |||
419 | break; | |||
420 | } | |||
421 | ||||
422 | if (!clang_type && | |||
423 | (encoding_data_type == Type::eEncodingIsPointerUID || | |||
424 | encoding_data_type == Type::eEncodingIsTypedefUID) && | |||
425 | sc.comp_unit != NULL__null) { | |||
426 | if (tag == DW_TAG_pointer_type) { | |||
427 | DWARFDIE target_die = die.GetReferencedDIE(DW_AT_type); | |||
428 | ||||
429 | if (target_die.GetAttributeValueAsUnsigned(DW_AT_APPLE_block, 0)) { | |||
430 | // Blocks have a __FuncPtr inside them which is a pointer to a | |||
431 | // function of the proper type. | |||
432 | ||||
433 | for (DWARFDIE child_die = target_die.GetFirstChild(); | |||
434 | child_die.IsValid(); child_die = child_die.GetSibling()) { | |||
435 | if (!strcmp(child_die.GetAttributeValueAsString(DW_AT_name, ""), | |||
436 | "__FuncPtr")) { | |||
437 | DWARFDIE function_pointer_type = | |||
438 | child_die.GetReferencedDIE(DW_AT_type); | |||
439 | ||||
440 | if (function_pointer_type) { | |||
441 | DWARFDIE function_type = | |||
442 | function_pointer_type.GetReferencedDIE(DW_AT_type); | |||
443 | ||||
444 | bool function_type_is_new_pointer; | |||
445 | TypeSP lldb_function_type_sp = ParseTypeFromDWARF( | |||
446 | sc, function_type, log, &function_type_is_new_pointer); | |||
447 | ||||
448 | if (lldb_function_type_sp) { | |||
449 | clang_type = m_ast.CreateBlockPointerType( | |||
450 | lldb_function_type_sp->GetForwardCompilerType()); | |||
451 | encoding_data_type = Type::eEncodingIsUID; | |||
452 | encoding_uid.Clear(); | |||
453 | resolve_state = Type::eResolveStateFull; | |||
454 | } | |||
455 | } | |||
456 | ||||
457 | break; | |||
458 | } | |||
459 | } | |||
460 | } | |||
461 | } | |||
462 | ||||
463 | bool translation_unit_is_objc = | |||
464 | (sc.comp_unit->GetLanguage() == eLanguageTypeObjC || | |||
465 | sc.comp_unit->GetLanguage() == eLanguageTypeObjC_plus_plus); | |||
466 | ||||
467 | if (translation_unit_is_objc) { | |||
468 | if (type_name_cstr != NULL__null) { | |||
469 | static ConstString g_objc_type_name_id("id"); | |||
470 | static ConstString g_objc_type_name_Class("Class"); | |||
471 | static ConstString g_objc_type_name_selector("SEL"); | |||
472 | ||||
473 | if (type_name_const_str == g_objc_type_name_id) { | |||
474 | if (log) | |||
475 | dwarf->GetObjectFile()->GetModule()->LogMessage( | |||
476 | log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' " | |||
477 | "is Objective-C 'id' built-in type.", | |||
478 | die.GetOffset(), die.GetTagAsCString(), die.GetName()); | |||
479 | clang_type = m_ast.GetBasicType(eBasicTypeObjCID); | |||
480 | encoding_data_type = Type::eEncodingIsUID; | |||
481 | encoding_uid.Clear(); | |||
482 | resolve_state = Type::eResolveStateFull; | |||
483 | ||||
484 | } else if (type_name_const_str == g_objc_type_name_Class) { | |||
485 | if (log) | |||
486 | dwarf->GetObjectFile()->GetModule()->LogMessage( | |||
487 | log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' " | |||
488 | "is Objective-C 'Class' built-in type.", | |||
489 | die.GetOffset(), die.GetTagAsCString(), die.GetName()); | |||
490 | clang_type = m_ast.GetBasicType(eBasicTypeObjCClass); | |||
491 | encoding_data_type = Type::eEncodingIsUID; | |||
492 | encoding_uid.Clear(); | |||
493 | resolve_state = Type::eResolveStateFull; | |||
494 | } else if (type_name_const_str == g_objc_type_name_selector) { | |||
495 | if (log) | |||
496 | dwarf->GetObjectFile()->GetModule()->LogMessage( | |||
497 | log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' " | |||
498 | "is Objective-C 'selector' built-in type.", | |||
499 | die.GetOffset(), die.GetTagAsCString(), die.GetName()); | |||
500 | clang_type = m_ast.GetBasicType(eBasicTypeObjCSel); | |||
501 | encoding_data_type = Type::eEncodingIsUID; | |||
502 | encoding_uid.Clear(); | |||
503 | resolve_state = Type::eResolveStateFull; | |||
504 | } | |||
505 | } else if (encoding_data_type == Type::eEncodingIsPointerUID && | |||
506 | encoding_uid.IsValid()) { | |||
507 | // Clang sometimes erroneously emits id as objc_object*. In that | |||
508 | // case we fix up the type to "id". | |||
509 | ||||
510 | const DWARFDIE encoding_die = dwarf->GetDIE(DIERef(encoding_uid)); | |||
511 | ||||
512 | if (encoding_die && encoding_die.Tag() == DW_TAG_structure_type) { | |||
513 | if (const char *struct_name = encoding_die.GetName()) { | |||
514 | if (!strcmp(struct_name, "objc_object")) { | |||
515 | if (log) | |||
516 | dwarf->GetObjectFile()->GetModule()->LogMessage( | |||
517 | log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s " | |||
518 | "'%s' is 'objc_object*', which we overrode to " | |||
519 | "'id'.", | |||
520 | die.GetOffset(), die.GetTagAsCString(), | |||
521 | die.GetName()); | |||
522 | clang_type = m_ast.GetBasicType(eBasicTypeObjCID); | |||
523 | encoding_data_type = Type::eEncodingIsUID; | |||
524 | encoding_uid.Clear(); | |||
525 | resolve_state = Type::eResolveStateFull; | |||
526 | } | |||
527 | } | |||
528 | } | |||
529 | } | |||
530 | } | |||
531 | } | |||
532 | ||||
533 | type_sp.reset( | |||
534 | new Type(die.GetID(), dwarf, type_name_const_str, byte_size, NULL__null, | |||
535 | DIERef(encoding_uid).GetUID(dwarf), encoding_data_type, | |||
536 | &decl, clang_type, resolve_state)); | |||
537 | ||||
538 | dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get(); | |||
539 | } break; | |||
540 | ||||
541 | case DW_TAG_structure_type: | |||
542 | case DW_TAG_union_type: | |||
543 | case DW_TAG_class_type: { | |||
544 | // Set a bit that lets us know that we are currently parsing this | |||
545 | dwarf->GetDIEToType()[die.GetDIE()] = DIE_IS_BEING_PARSED((lldb_private::Type *)1); | |||
546 | bool byte_size_valid = false; | |||
547 | ||||
548 | LanguageType class_language = eLanguageTypeUnknown; | |||
549 | bool is_complete_objc_class = false; | |||
550 | size_t calling_convention | |||
551 | = llvm::dwarf::CallingConvention::DW_CC_normal; | |||
552 | ||||
553 | const size_t num_attributes = die.GetAttributes(attributes); | |||
554 | if (num_attributes > 0) { | |||
555 | uint32_t i; | |||
556 | for (i = 0; i < num_attributes; ++i) { | |||
557 | attr = attributes.AttributeAtIndex(i); | |||
558 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { | |||
559 | switch (attr) { | |||
560 | case DW_AT_decl_file: | |||
561 | if (die.GetCU()->DW_AT_decl_file_attributes_are_invalid()) { | |||
562 | // llvm-gcc outputs invalid DW_AT_decl_file attributes that | |||
563 | // always point to the compile unit file, so we clear this | |||
564 | // invalid value so that we can still unique types | |||
565 | // efficiently. | |||
566 | decl.SetFile(FileSpec("<invalid>", false)); | |||
567 | } else | |||
568 | decl.SetFile( | |||
569 | sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex( | |||
570 | form_value.Unsigned())); | |||
571 | break; | |||
572 | ||||
573 | case DW_AT_decl_line: | |||
574 | decl.SetLine(form_value.Unsigned()); | |||
575 | break; | |||
576 | ||||
577 | case DW_AT_decl_column: | |||
578 | decl.SetColumn(form_value.Unsigned()); | |||
579 | break; | |||
580 | ||||
581 | case DW_AT_name: | |||
582 | type_name_cstr = form_value.AsCString(); | |||
583 | type_name_const_str.SetCString(type_name_cstr); | |||
584 | break; | |||
585 | ||||
586 | case DW_AT_byte_size: | |||
587 | byte_size = form_value.Unsigned(); | |||
588 | byte_size_valid = true; | |||
589 | break; | |||
590 | ||||
591 | case DW_AT_accessibility: | |||
592 | accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); | |||
593 | break; | |||
594 | ||||
595 | case DW_AT_declaration: | |||
596 | is_forward_declaration = form_value.Boolean(); | |||
597 | break; | |||
598 | ||||
599 | case DW_AT_APPLE_runtime_class: | |||
600 | class_language = (LanguageType)form_value.Signed(); | |||
601 | break; | |||
602 | ||||
603 | case DW_AT_APPLE_objc_complete_type: | |||
604 | is_complete_objc_class = form_value.Signed(); | |||
605 | break; | |||
606 | case DW_AT_calling_convention: | |||
607 | calling_convention = form_value.Unsigned(); | |||
608 | break; | |||
609 | ||||
610 | case DW_AT_allocated: | |||
611 | case DW_AT_associated: | |||
612 | case DW_AT_data_location: | |||
613 | case DW_AT_description: | |||
614 | case DW_AT_start_scope: | |||
615 | case DW_AT_visibility: | |||
616 | default: | |||
617 | case DW_AT_sibling: | |||
618 | break; | |||
619 | } | |||
620 | } | |||
621 | } | |||
622 | } | |||
623 | ||||
624 | // UniqueDWARFASTType is large, so don't create a local variables on | |||
625 | // the stack, put it on the heap. This function is often called | |||
626 | // recursively and clang isn't good and sharing the stack space for | |||
627 | // variables in different blocks. | |||
628 | std::unique_ptr<UniqueDWARFASTType> unique_ast_entry_ap( | |||
629 | new UniqueDWARFASTType()); | |||
630 | ||||
631 | ConstString unique_typename(type_name_const_str); | |||
632 | Declaration unique_decl(decl); | |||
633 | ||||
634 | if (type_name_const_str) { | |||
635 | LanguageType die_language = die.GetLanguage(); | |||
636 | if (Language::LanguageIsCPlusPlus(die_language)) { | |||
637 | // For C++, we rely solely upon the one definition rule that says | |||
638 | // only one thing can exist at a given decl context. We ignore the | |||
639 | // file and line that things are declared on. | |||
640 | std::string qualified_name; | |||
641 | if (die.GetQualifiedName(qualified_name)) | |||
642 | unique_typename = ConstString(qualified_name); | |||
643 | unique_decl.Clear(); | |||
644 | } | |||
645 | ||||
646 | if (dwarf->GetUniqueDWARFASTTypeMap().Find( | |||
647 | unique_typename, die, unique_decl, | |||
648 | byte_size_valid ? byte_size : -1, *unique_ast_entry_ap)) { | |||
649 | type_sp = unique_ast_entry_ap->m_type_sp; | |||
650 | if (type_sp) { | |||
651 | dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get(); | |||
652 | return type_sp; | |||
653 | } | |||
654 | } | |||
655 | } | |||
656 | ||||
657 | DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\")\n", die.GetID(), | |||
658 | DW_TAG_value_to_name(tag), type_name_cstr); | |||
659 | ||||
660 | int tag_decl_kind = -1; | |||
661 | AccessType default_accessibility = eAccessNone; | |||
662 | if (tag == DW_TAG_structure_type) { | |||
663 | tag_decl_kind = clang::TTK_Struct; | |||
664 | default_accessibility = eAccessPublic; | |||
665 | } else if (tag == DW_TAG_union_type) { | |||
666 | tag_decl_kind = clang::TTK_Union; | |||
667 | default_accessibility = eAccessPublic; | |||
668 | } else if (tag == DW_TAG_class_type) { | |||
669 | tag_decl_kind = clang::TTK_Class; | |||
670 | default_accessibility = eAccessPrivate; | |||
671 | } | |||
672 | ||||
673 | if (byte_size_valid && byte_size == 0 && type_name_cstr && | |||
674 | die.HasChildren() == false && | |||
675 | sc.comp_unit->GetLanguage() == eLanguageTypeObjC) { | |||
676 | // Work around an issue with clang at the moment where forward | |||
677 | // declarations for objective C classes are emitted as: | |||
678 | // DW_TAG_structure_type [2] | |||
679 | // DW_AT_name( "ForwardObjcClass" ) | |||
680 | // DW_AT_byte_size( 0x00 ) | |||
681 | // DW_AT_decl_file( "..." ) | |||
682 | // DW_AT_decl_line( 1 ) | |||
683 | // | |||
684 | // Note that there is no DW_AT_declaration and there are no children, | |||
685 | // and the byte size is zero. | |||
686 | is_forward_declaration = true; | |||
687 | } | |||
688 | ||||
689 | if (class_language == eLanguageTypeObjC || | |||
690 | class_language == eLanguageTypeObjC_plus_plus) { | |||
691 | if (!is_complete_objc_class && | |||
692 | die.Supports_DW_AT_APPLE_objc_complete_type()) { | |||
693 | // We have a valid eSymbolTypeObjCClass class symbol whose name | |||
694 | // matches the current objective C class that we are trying to find | |||
695 | // and this DIE isn't the complete definition (we checked | |||
696 | // is_complete_objc_class above and know it is false), so the real | |||
697 | // definition is in here somewhere | |||
698 | type_sp = dwarf->FindCompleteObjCDefinitionTypeForDIE( | |||
699 | die, type_name_const_str, true); | |||
700 | ||||
701 | if (!type_sp) { | |||
702 | SymbolFileDWARFDebugMap *debug_map_symfile = | |||
703 | dwarf->GetDebugMapSymfile(); | |||
704 | if (debug_map_symfile) { | |||
705 | // We weren't able to find a full declaration in this DWARF, | |||
706 | // see if we have a declaration anywhere else... | |||
707 | type_sp = | |||
708 | debug_map_symfile->FindCompleteObjCDefinitionTypeForDIE( | |||
709 | die, type_name_const_str, true); | |||
710 | } | |||
711 | } | |||
712 | ||||
713 | if (type_sp) { | |||
714 | if (log) { | |||
715 | dwarf->GetObjectFile()->GetModule()->LogMessage( | |||
716 | log, "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is an " | |||
717 | "incomplete objc type, complete type is 0x%8.8" PRIx64"l" "x", | |||
718 | static_cast<void *>(this), die.GetOffset(), | |||
719 | DW_TAG_value_to_name(tag), type_name_cstr, | |||
720 | type_sp->GetID()); | |||
721 | } | |||
722 | ||||
723 | // We found a real definition for this type elsewhere so lets use | |||
724 | // it and cache the fact that we found a complete type for this | |||
725 | // die | |||
726 | dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get(); | |||
727 | return type_sp; | |||
728 | } | |||
729 | } | |||
730 | } | |||
731 | ||||
732 | if (is_forward_declaration) { | |||
733 | // We have a forward declaration to a type and we need to try and | |||
734 | // find a full declaration. We look in the current type index just in | |||
735 | // case we have a forward declaration followed by an actual | |||
736 | // declarations in the DWARF. If this fails, we need to look | |||
737 | // elsewhere... | |||
738 | if (log) { | |||
739 | dwarf->GetObjectFile()->GetModule()->LogMessage( | |||
740 | log, "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a " | |||
741 | "forward declaration, trying to find complete type", | |||
742 | static_cast<void *>(this), die.GetOffset(), | |||
743 | DW_TAG_value_to_name(tag), type_name_cstr); | |||
744 | } | |||
745 | ||||
746 | // See if the type comes from a DWO module and if so, track down that | |||
747 | // type. | |||
748 | type_sp = ParseTypeFromDWO(die, log); | |||
749 | if (type_sp) | |||
750 | return type_sp; | |||
751 | ||||
752 | DWARFDeclContext die_decl_ctx; | |||
753 | die.GetDWARFDeclContext(die_decl_ctx); | |||
754 | ||||
755 | // type_sp = FindDefinitionTypeForDIE (dwarf_cu, die, | |||
756 | // type_name_const_str); | |||
757 | type_sp = dwarf->FindDefinitionTypeForDWARFDeclContext(die_decl_ctx); | |||
758 | ||||
759 | if (!type_sp) { | |||
760 | SymbolFileDWARFDebugMap *debug_map_symfile = | |||
761 | dwarf->GetDebugMapSymfile(); | |||
762 | if (debug_map_symfile) { | |||
763 | // We weren't able to find a full declaration in this DWARF, see | |||
764 | // if we have a declaration anywhere else... | |||
765 | type_sp = | |||
766 | debug_map_symfile->FindDefinitionTypeForDWARFDeclContext( | |||
767 | die_decl_ctx); | |||
768 | } | |||
769 | } | |||
770 | ||||
771 | if (type_sp) { | |||
772 | if (log) { | |||
773 | dwarf->GetObjectFile()->GetModule()->LogMessage( | |||
774 | log, "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a " | |||
775 | "forward declaration, complete type is 0x%8.8" PRIx64"l" "x", | |||
776 | static_cast<void *>(this), die.GetOffset(), | |||
777 | DW_TAG_value_to_name(tag), type_name_cstr, type_sp->GetID()); | |||
778 | } | |||
779 | ||||
780 | // We found a real definition for this type elsewhere so lets use | |||
781 | // it and cache the fact that we found a complete type for this die | |||
782 | dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get(); | |||
783 | clang::DeclContext *defn_decl_ctx = GetCachedClangDeclContextForDIE( | |||
784 | dwarf->DebugInfo()->GetDIE(DIERef(type_sp->GetID(), dwarf))); | |||
785 | if (defn_decl_ctx) | |||
786 | LinkDeclContextToDIE(defn_decl_ctx, die); | |||
787 | return type_sp; | |||
788 | } | |||
789 | } | |||
790 | assert(tag_decl_kind != -1)(static_cast <bool> (tag_decl_kind != -1) ? void (0) : __assert_fail ("tag_decl_kind != -1", "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 790, __extension__ __PRETTY_FUNCTION__)); | |||
791 | bool clang_type_was_created = false; | |||
792 | clang_type.SetCompilerType( | |||
793 | &m_ast, dwarf->GetForwardDeclDieToClangType().lookup(die.GetDIE())); | |||
794 | if (!clang_type) { | |||
795 | clang::DeclContext *decl_ctx = | |||
796 | GetClangDeclContextContainingDIE(die, nullptr); | |||
797 | ||||
798 | // If your decl context is a record that was imported from another | |||
799 | // AST context (in the gmodules case), we need to make sure the type | |||
800 | // backing the Decl is complete before adding children to it. This is | |||
801 | // not an issue in the non-gmodules case because the debug info will | |||
802 | // always contain a full definition of parent types in that case. | |||
803 | CompleteExternalTagDeclType(GetClangASTImporter(), decl_ctx, die, | |||
804 | type_name_cstr); | |||
805 | ||||
806 | if (accessibility == eAccessNone && decl_ctx) { | |||
807 | // Check the decl context that contains this class/struct/union. If | |||
808 | // it is a class we must give it an accessibility. | |||
809 | const clang::Decl::Kind containing_decl_kind = | |||
810 | decl_ctx->getDeclKind(); | |||
811 | if (DeclKindIsCXXClass(containing_decl_kind)) | |||
812 | accessibility = default_accessibility; | |||
813 | } | |||
814 | ||||
815 | ClangASTMetadata metadata; | |||
816 | metadata.SetUserID(die.GetID()); | |||
817 | metadata.SetIsDynamicCXXType(dwarf->ClassOrStructIsVirtual(die)); | |||
818 | ||||
819 | if (type_name_cstr && strchr(type_name_cstr, '<')) { | |||
820 | ClangASTContext::TemplateParameterInfos template_param_infos; | |||
821 | if (ParseTemplateParameterInfos(die, template_param_infos)) { | |||
822 | clang::ClassTemplateDecl *class_template_decl = | |||
823 | m_ast.ParseClassTemplateDecl(decl_ctx, accessibility, | |||
824 | type_name_cstr, tag_decl_kind, | |||
825 | template_param_infos); | |||
826 | if (!class_template_decl) { | |||
827 | if (log) { | |||
828 | dwarf->GetObjectFile()->GetModule()->LogMessage( | |||
829 | log, "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" " | |||
830 | "clang::ClassTemplateDecl failed to return a decl.", | |||
831 | static_cast<void *>(this), die.GetOffset(), | |||
832 | DW_TAG_value_to_name(tag), type_name_cstr); | |||
833 | } | |||
834 | return TypeSP(); | |||
835 | } | |||
836 | ||||
837 | clang::ClassTemplateSpecializationDecl | |||
838 | *class_specialization_decl = | |||
839 | m_ast.CreateClassTemplateSpecializationDecl( | |||
840 | decl_ctx, class_template_decl, tag_decl_kind, | |||
841 | template_param_infos); | |||
842 | clang_type = m_ast.CreateClassTemplateSpecializationType( | |||
843 | class_specialization_decl); | |||
844 | clang_type_was_created = true; | |||
845 | ||||
846 | m_ast.SetMetadata(class_template_decl, metadata); | |||
847 | m_ast.SetMetadata(class_specialization_decl, metadata); | |||
848 | } | |||
849 | } | |||
850 | ||||
851 | if (!clang_type_was_created) { | |||
852 | clang_type_was_created = true; | |||
853 | clang_type = m_ast.CreateRecordType(decl_ctx, accessibility, | |||
854 | type_name_cstr, tag_decl_kind, | |||
855 | class_language, &metadata); | |||
856 | } | |||
857 | } | |||
858 | ||||
859 | // Store a forward declaration to this class type in case any | |||
860 | // parameters in any class methods need it for the clang types for | |||
861 | // function prototypes. | |||
862 | LinkDeclContextToDIE(m_ast.GetDeclContextForType(clang_type), die); | |||
863 | type_sp.reset(new Type(die.GetID(), dwarf, type_name_const_str, | |||
864 | byte_size, NULL__null, LLDB_INVALID_UID(18446744073709551615UL), | |||
865 | Type::eEncodingIsUID, &decl, clang_type, | |||
866 | Type::eResolveStateForward)); | |||
867 | ||||
868 | type_sp->SetIsCompleteObjCClass(is_complete_objc_class); | |||
869 | ||||
870 | // Add our type to the unique type map so we don't end up creating many | |||
871 | // copies of the same type over and over in the ASTContext for our | |||
872 | // module | |||
873 | unique_ast_entry_ap->m_type_sp = type_sp; | |||
874 | unique_ast_entry_ap->m_die = die; | |||
875 | unique_ast_entry_ap->m_declaration = unique_decl; | |||
876 | unique_ast_entry_ap->m_byte_size = byte_size; | |||
877 | dwarf->GetUniqueDWARFASTTypeMap().Insert(unique_typename, | |||
878 | *unique_ast_entry_ap); | |||
879 | ||||
880 | if (is_forward_declaration && die.HasChildren()) { | |||
881 | // Check to see if the DIE actually has a definition, some version of | |||
882 | // GCC will | |||
883 | // emit DIEs with DW_AT_declaration set to true, but yet still have | |||
884 | // subprogram, members, or inheritance, so we can't trust it | |||
885 | DWARFDIE child_die = die.GetFirstChild(); | |||
886 | while (child_die) { | |||
887 | switch (child_die.Tag()) { | |||
888 | case DW_TAG_inheritance: | |||
889 | case DW_TAG_subprogram: | |||
890 | case DW_TAG_member: | |||
891 | case DW_TAG_APPLE_property: | |||
892 | case DW_TAG_class_type: | |||
893 | case DW_TAG_structure_type: | |||
894 | case DW_TAG_enumeration_type: | |||
895 | case DW_TAG_typedef: | |||
896 | case DW_TAG_union_type: | |||
897 | child_die.Clear(); | |||
898 | is_forward_declaration = false; | |||
899 | break; | |||
900 | default: | |||
901 | child_die = child_die.GetSibling(); | |||
902 | break; | |||
903 | } | |||
904 | } | |||
905 | } | |||
906 | ||||
907 | if (!is_forward_declaration) { | |||
908 | // Always start the definition for a class type so that if the class | |||
909 | // has child classes or types that require the class to be created | |||
910 | // for use as their decl contexts the class will be ready to accept | |||
911 | // these child definitions. | |||
912 | if (die.HasChildren() == false) { | |||
913 | // No children for this struct/union/class, lets finish it | |||
914 | if (ClangASTContext::StartTagDeclarationDefinition(clang_type)) { | |||
915 | ClangASTContext::CompleteTagDeclarationDefinition(clang_type); | |||
916 | } else { | |||
917 | dwarf->GetObjectFile()->GetModule()->ReportError( | |||
918 | "DWARF DIE at 0x%8.8x named \"%s\" was not able to start its " | |||
919 | "definition.\nPlease file a bug and attach the file at the " | |||
920 | "start of this error message", | |||
921 | die.GetOffset(), type_name_cstr); | |||
922 | } | |||
923 | ||||
924 | if (tag == DW_TAG_structure_type) // this only applies in C | |||
925 | { | |||
926 | clang::RecordDecl *record_decl = | |||
927 | ClangASTContext::GetAsRecordDecl(clang_type); | |||
928 | ||||
929 | if (record_decl) { | |||
930 | GetClangASTImporter().InsertRecordDecl( | |||
931 | record_decl, ClangASTImporter::LayoutInfo()); | |||
932 | } | |||
933 | } | |||
934 | } else if (clang_type_was_created) { | |||
935 | // Start the definition if the class is not objective C since the | |||
936 | // underlying decls respond to isCompleteDefinition(). Objective | |||
937 | // C decls don't respond to isCompleteDefinition() so we can't | |||
938 | // start the declaration definition right away. For C++ | |||
939 | // class/union/structs we want to start the definition in case the | |||
940 | // class is needed as the declaration context for a contained class | |||
941 | // or type without the need to complete that type.. | |||
942 | ||||
943 | if (class_language != eLanguageTypeObjC && | |||
944 | class_language != eLanguageTypeObjC_plus_plus) | |||
945 | ClangASTContext::StartTagDeclarationDefinition(clang_type); | |||
946 | ||||
947 | // Leave this as a forward declaration until we need to know the | |||
948 | // details of the type. lldb_private::Type will automatically call | |||
949 | // the SymbolFile virtual function | |||
950 | // "SymbolFileDWARF::CompleteType(Type *)" When the definition | |||
951 | // needs to be defined. | |||
952 | assert(!dwarf->GetForwardDeclClangTypeToDie().count((static_cast <bool> (!dwarf->GetForwardDeclClangTypeToDie ().count( ClangUtil::RemoveFastQualifiers(clang_type) .GetOpaqueQualType ()) && "Type already in the forward declaration map!" ) ? void (0) : __assert_fail ("!dwarf->GetForwardDeclClangTypeToDie().count( ClangUtil::RemoveFastQualifiers(clang_type) .GetOpaqueQualType()) && \"Type already in the forward declaration map!\"" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 955, __extension__ __PRETTY_FUNCTION__)) | |||
953 | ClangUtil::RemoveFastQualifiers(clang_type)(static_cast <bool> (!dwarf->GetForwardDeclClangTypeToDie ().count( ClangUtil::RemoveFastQualifiers(clang_type) .GetOpaqueQualType ()) && "Type already in the forward declaration map!" ) ? void (0) : __assert_fail ("!dwarf->GetForwardDeclClangTypeToDie().count( ClangUtil::RemoveFastQualifiers(clang_type) .GetOpaqueQualType()) && \"Type already in the forward declaration map!\"" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 955, __extension__ __PRETTY_FUNCTION__)) | |||
954 | .GetOpaqueQualType()) &&(static_cast <bool> (!dwarf->GetForwardDeclClangTypeToDie ().count( ClangUtil::RemoveFastQualifiers(clang_type) .GetOpaqueQualType ()) && "Type already in the forward declaration map!" ) ? void (0) : __assert_fail ("!dwarf->GetForwardDeclClangTypeToDie().count( ClangUtil::RemoveFastQualifiers(clang_type) .GetOpaqueQualType()) && \"Type already in the forward declaration map!\"" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 955, __extension__ __PRETTY_FUNCTION__)) | |||
955 | "Type already in the forward declaration map!")(static_cast <bool> (!dwarf->GetForwardDeclClangTypeToDie ().count( ClangUtil::RemoveFastQualifiers(clang_type) .GetOpaqueQualType ()) && "Type already in the forward declaration map!" ) ? void (0) : __assert_fail ("!dwarf->GetForwardDeclClangTypeToDie().count( ClangUtil::RemoveFastQualifiers(clang_type) .GetOpaqueQualType()) && \"Type already in the forward declaration map!\"" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 955, __extension__ __PRETTY_FUNCTION__)); | |||
956 | // Can't assume m_ast.GetSymbolFile() is actually a | |||
957 | // SymbolFileDWARF, it can be a SymbolFileDWARFDebugMap for Apple | |||
958 | // binaries. | |||
959 | dwarf->GetForwardDeclDieToClangType()[die.GetDIE()] = | |||
960 | clang_type.GetOpaqueQualType(); | |||
961 | dwarf->GetForwardDeclClangTypeToDie() | |||
962 | [ClangUtil::RemoveFastQualifiers(clang_type) | |||
963 | .GetOpaqueQualType()] = die.GetDIERef(); | |||
964 | m_ast.SetHasExternalStorage(clang_type.GetOpaqueQualType(), true); | |||
965 | } | |||
966 | } | |||
967 | ||||
968 | // If we made a clang type, set the trivial abi if applicable: We only | |||
969 | // do this for pass by value - which implies the Trivial ABI. There | |||
970 | // isn't a way to assert that something that would normally be pass by | |||
971 | // value is pass by reference, so we ignore that attribute if set. | |||
972 | if (calling_convention == llvm::dwarf::DW_CC_pass_by_value) { | |||
973 | clang::CXXRecordDecl *record_decl = | |||
974 | m_ast.GetAsCXXRecordDecl(clang_type.GetOpaqueQualType()); | |||
975 | if (record_decl) { | |||
976 | record_decl->setHasTrivialSpecialMemberForCall(); | |||
977 | } | |||
978 | } | |||
979 | ||||
980 | } break; | |||
981 | ||||
982 | case DW_TAG_enumeration_type: { | |||
983 | // Set a bit that lets us know that we are currently parsing this | |||
984 | dwarf->GetDIEToType()[die.GetDIE()] = DIE_IS_BEING_PARSED((lldb_private::Type *)1); | |||
985 | ||||
986 | bool is_scoped = false; | |||
987 | DWARFFormValue encoding_form; | |||
988 | ||||
989 | const size_t num_attributes = die.GetAttributes(attributes); | |||
990 | if (num_attributes > 0) { | |||
991 | uint32_t i; | |||
992 | ||||
993 | for (i = 0; i < num_attributes; ++i) { | |||
994 | attr = attributes.AttributeAtIndex(i); | |||
995 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { | |||
996 | switch (attr) { | |||
997 | case DW_AT_decl_file: | |||
998 | decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex( | |||
999 | form_value.Unsigned())); | |||
1000 | break; | |||
1001 | case DW_AT_decl_line: | |||
1002 | decl.SetLine(form_value.Unsigned()); | |||
1003 | break; | |||
1004 | case DW_AT_decl_column: | |||
1005 | decl.SetColumn(form_value.Unsigned()); | |||
1006 | break; | |||
1007 | case DW_AT_name: | |||
1008 | type_name_cstr = form_value.AsCString(); | |||
1009 | type_name_const_str.SetCString(type_name_cstr); | |||
1010 | break; | |||
1011 | case DW_AT_type: | |||
1012 | encoding_form = form_value; | |||
1013 | break; | |||
1014 | case DW_AT_byte_size: | |||
1015 | byte_size = form_value.Unsigned(); | |||
1016 | break; | |||
1017 | case DW_AT_accessibility: | |||
1018 | break; // accessibility = | |||
1019 | // DW_ACCESS_to_AccessType(form_value.Unsigned()); break; | |||
1020 | case DW_AT_declaration: | |||
1021 | is_forward_declaration = form_value.Boolean(); | |||
1022 | break; | |||
1023 | case DW_AT_enum_class: | |||
1024 | is_scoped = form_value.Boolean(); | |||
1025 | break; | |||
1026 | case DW_AT_allocated: | |||
1027 | case DW_AT_associated: | |||
1028 | case DW_AT_bit_stride: | |||
1029 | case DW_AT_byte_stride: | |||
1030 | case DW_AT_data_location: | |||
1031 | case DW_AT_description: | |||
1032 | case DW_AT_start_scope: | |||
1033 | case DW_AT_visibility: | |||
1034 | case DW_AT_specification: | |||
1035 | case DW_AT_abstract_origin: | |||
1036 | case DW_AT_sibling: | |||
1037 | break; | |||
1038 | } | |||
1039 | } | |||
1040 | } | |||
1041 | ||||
1042 | if (is_forward_declaration) { | |||
1043 | type_sp = ParseTypeFromDWO(die, log); | |||
1044 | if (type_sp) | |||
1045 | return type_sp; | |||
1046 | ||||
1047 | DWARFDeclContext die_decl_ctx; | |||
1048 | die.GetDWARFDeclContext(die_decl_ctx); | |||
1049 | ||||
1050 | type_sp = | |||
1051 | dwarf->FindDefinitionTypeForDWARFDeclContext(die_decl_ctx); | |||
1052 | ||||
1053 | if (!type_sp) { | |||
1054 | SymbolFileDWARFDebugMap *debug_map_symfile = | |||
1055 | dwarf->GetDebugMapSymfile(); | |||
1056 | if (debug_map_symfile) { | |||
1057 | // We weren't able to find a full declaration in this DWARF, | |||
1058 | // see if we have a declaration anywhere else... | |||
1059 | type_sp = | |||
1060 | debug_map_symfile->FindDefinitionTypeForDWARFDeclContext( | |||
1061 | die_decl_ctx); | |||
1062 | } | |||
1063 | } | |||
1064 | ||||
1065 | if (type_sp) { | |||
1066 | if (log) { | |||
1067 | dwarf->GetObjectFile()->GetModule()->LogMessage( | |||
1068 | log, "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a " | |||
1069 | "forward declaration, complete type is 0x%8.8" PRIx64"l" "x", | |||
1070 | static_cast<void *>(this), die.GetOffset(), | |||
1071 | DW_TAG_value_to_name(tag), type_name_cstr, | |||
1072 | type_sp->GetID()); | |||
1073 | } | |||
1074 | ||||
1075 | // We found a real definition for this type elsewhere so lets use | |||
1076 | // it and cache the fact that we found a complete type for this | |||
1077 | // die | |||
1078 | dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get(); | |||
1079 | clang::DeclContext *defn_decl_ctx = | |||
1080 | GetCachedClangDeclContextForDIE(dwarf->DebugInfo()->GetDIE( | |||
1081 | DIERef(type_sp->GetID(), dwarf))); | |||
1082 | if (defn_decl_ctx) | |||
1083 | LinkDeclContextToDIE(defn_decl_ctx, die); | |||
1084 | return type_sp; | |||
1085 | } | |||
1086 | } | |||
1087 | DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\")\n", die.GetID(), | |||
1088 | DW_TAG_value_to_name(tag), type_name_cstr); | |||
1089 | ||||
1090 | CompilerType enumerator_clang_type; | |||
1091 | clang_type.SetCompilerType( | |||
1092 | &m_ast, | |||
1093 | dwarf->GetForwardDeclDieToClangType().lookup(die.GetDIE())); | |||
1094 | if (!clang_type) { | |||
1095 | if (encoding_form.IsValid()) { | |||
1096 | Type *enumerator_type = | |||
1097 | dwarf->ResolveTypeUID(DIERef(encoding_form)); | |||
1098 | if (enumerator_type) | |||
1099 | enumerator_clang_type = enumerator_type->GetFullCompilerType(); | |||
1100 | } | |||
1101 | ||||
1102 | if (!enumerator_clang_type) { | |||
1103 | if (byte_size > 0) { | |||
1104 | enumerator_clang_type = | |||
1105 | m_ast.GetBuiltinTypeForDWARFEncodingAndBitSize( | |||
1106 | NULL__null, DW_ATE_signed, byte_size * 8); | |||
1107 | } else { | |||
1108 | enumerator_clang_type = m_ast.GetBasicType(eBasicTypeInt); | |||
1109 | } | |||
1110 | } | |||
1111 | ||||
1112 | clang_type = m_ast.CreateEnumerationType( | |||
1113 | type_name_cstr, GetClangDeclContextContainingDIE(die, nullptr), | |||
1114 | decl, enumerator_clang_type, is_scoped); | |||
1115 | } else { | |||
1116 | enumerator_clang_type = | |||
1117 | m_ast.GetEnumerationIntegerType(clang_type.GetOpaqueQualType()); | |||
1118 | } | |||
1119 | ||||
1120 | LinkDeclContextToDIE( | |||
1121 | ClangASTContext::GetDeclContextForType(clang_type), die); | |||
1122 | ||||
1123 | type_sp.reset(new Type( | |||
1124 | die.GetID(), dwarf, type_name_const_str, byte_size, NULL__null, | |||
1125 | DIERef(encoding_form).GetUID(dwarf), Type::eEncodingIsUID, &decl, | |||
1126 | clang_type, Type::eResolveStateForward)); | |||
1127 | ||||
1128 | if (ClangASTContext::StartTagDeclarationDefinition(clang_type)) { | |||
1129 | if (die.HasChildren()) { | |||
1130 | SymbolContext cu_sc(die.GetLLDBCompileUnit()); | |||
1131 | bool is_signed = false; | |||
1132 | enumerator_clang_type.IsIntegerType(is_signed); | |||
1133 | ParseChildEnumerators(cu_sc, clang_type, is_signed, | |||
1134 | type_sp->GetByteSize(), die); | |||
1135 | } | |||
1136 | ClangASTContext::CompleteTagDeclarationDefinition(clang_type); | |||
1137 | } else { | |||
1138 | dwarf->GetObjectFile()->GetModule()->ReportError( | |||
1139 | "DWARF DIE at 0x%8.8x named \"%s\" was not able to start its " | |||
1140 | "definition.\nPlease file a bug and attach the file at the " | |||
1141 | "start of this error message", | |||
1142 | die.GetOffset(), type_name_cstr); | |||
1143 | } | |||
1144 | } | |||
1145 | } break; | |||
1146 | ||||
1147 | case DW_TAG_inlined_subroutine: | |||
1148 | case DW_TAG_subprogram: | |||
1149 | case DW_TAG_subroutine_type: { | |||
1150 | // Set a bit that lets us know that we are currently parsing this | |||
1151 | dwarf->GetDIEToType()[die.GetDIE()] = DIE_IS_BEING_PARSED((lldb_private::Type *)1); | |||
1152 | ||||
1153 | DWARFFormValue type_die_form; | |||
1154 | bool is_variadic = false; | |||
1155 | bool is_inline = false; | |||
1156 | bool is_static = false; | |||
1157 | bool is_virtual = false; | |||
1158 | bool is_explicit = false; | |||
1159 | bool is_artificial = false; | |||
1160 | bool has_template_params = false; | |||
1161 | DWARFFormValue specification_die_form; | |||
1162 | DWARFFormValue abstract_origin_die_form; | |||
1163 | dw_offset_t object_pointer_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||
1164 | ||||
1165 | unsigned type_quals = 0; | |||
1166 | clang::StorageClass storage = | |||
1167 | clang::SC_None; //, Extern, Static, PrivateExtern | |||
1168 | ||||
1169 | const size_t num_attributes = die.GetAttributes(attributes); | |||
1170 | if (num_attributes > 0) { | |||
1171 | uint32_t i; | |||
1172 | for (i = 0; i < num_attributes; ++i) { | |||
1173 | attr = attributes.AttributeAtIndex(i); | |||
1174 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { | |||
1175 | switch (attr) { | |||
1176 | case DW_AT_decl_file: | |||
1177 | decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex( | |||
1178 | form_value.Unsigned())); | |||
1179 | break; | |||
1180 | case DW_AT_decl_line: | |||
1181 | decl.SetLine(form_value.Unsigned()); | |||
1182 | break; | |||
1183 | case DW_AT_decl_column: | |||
1184 | decl.SetColumn(form_value.Unsigned()); | |||
1185 | break; | |||
1186 | case DW_AT_name: | |||
1187 | type_name_cstr = form_value.AsCString(); | |||
1188 | type_name_const_str.SetCString(type_name_cstr); | |||
1189 | break; | |||
1190 | ||||
1191 | case DW_AT_linkage_name: | |||
1192 | case DW_AT_MIPS_linkage_name: | |||
1193 | mangled_name_cstr = form_value.AsCString(); | |||
1194 | break; | |||
1195 | case DW_AT_type: | |||
1196 | type_die_form = form_value; | |||
1197 | break; | |||
1198 | case DW_AT_accessibility: | |||
1199 | accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); | |||
1200 | break; | |||
1201 | case DW_AT_declaration: | |||
1202 | break; // is_forward_declaration = form_value.Boolean(); break; | |||
1203 | case DW_AT_inline: | |||
1204 | is_inline = form_value.Boolean(); | |||
1205 | break; | |||
1206 | case DW_AT_virtuality: | |||
1207 | is_virtual = form_value.Boolean(); | |||
1208 | break; | |||
1209 | case DW_AT_explicit: | |||
1210 | is_explicit = form_value.Boolean(); | |||
1211 | break; | |||
1212 | case DW_AT_artificial: | |||
1213 | is_artificial = form_value.Boolean(); | |||
1214 | break; | |||
1215 | ||||
1216 | case DW_AT_external: | |||
1217 | if (form_value.Unsigned()) { | |||
1218 | if (storage == clang::SC_None) | |||
1219 | storage = clang::SC_Extern; | |||
1220 | else | |||
1221 | storage = clang::SC_PrivateExtern; | |||
1222 | } | |||
1223 | break; | |||
1224 | ||||
1225 | case DW_AT_specification: | |||
1226 | specification_die_form = form_value; | |||
1227 | break; | |||
1228 | ||||
1229 | case DW_AT_abstract_origin: | |||
1230 | abstract_origin_die_form = form_value; | |||
1231 | break; | |||
1232 | ||||
1233 | case DW_AT_object_pointer: | |||
1234 | object_pointer_die_offset = form_value.Reference(); | |||
1235 | break; | |||
1236 | ||||
1237 | case DW_AT_allocated: | |||
1238 | case DW_AT_associated: | |||
1239 | case DW_AT_address_class: | |||
1240 | case DW_AT_calling_convention: | |||
1241 | case DW_AT_data_location: | |||
1242 | case DW_AT_elemental: | |||
1243 | case DW_AT_entry_pc: | |||
1244 | case DW_AT_frame_base: | |||
1245 | case DW_AT_high_pc: | |||
1246 | case DW_AT_low_pc: | |||
1247 | case DW_AT_prototyped: | |||
1248 | case DW_AT_pure: | |||
1249 | case DW_AT_ranges: | |||
1250 | case DW_AT_recursive: | |||
1251 | case DW_AT_return_addr: | |||
1252 | case DW_AT_segment: | |||
1253 | case DW_AT_start_scope: | |||
1254 | case DW_AT_static_link: | |||
1255 | case DW_AT_trampoline: | |||
1256 | case DW_AT_visibility: | |||
1257 | case DW_AT_vtable_elem_location: | |||
1258 | case DW_AT_description: | |||
1259 | case DW_AT_sibling: | |||
1260 | break; | |||
1261 | } | |||
1262 | } | |||
1263 | } | |||
1264 | } | |||
1265 | ||||
1266 | std::string object_pointer_name; | |||
1267 | if (object_pointer_die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) { | |||
1268 | DWARFDIE object_pointer_die = die.GetDIE(object_pointer_die_offset); | |||
1269 | if (object_pointer_die) { | |||
1270 | const char *object_pointer_name_cstr = object_pointer_die.GetName(); | |||
1271 | if (object_pointer_name_cstr) | |||
1272 | object_pointer_name = object_pointer_name_cstr; | |||
1273 | } | |||
1274 | } | |||
1275 | ||||
1276 | DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\")\n", die.GetID(), | |||
1277 | DW_TAG_value_to_name(tag), type_name_cstr); | |||
1278 | ||||
1279 | CompilerType return_clang_type; | |||
1280 | Type *func_type = NULL__null; | |||
1281 | ||||
1282 | if (type_die_form.IsValid()) | |||
1283 | func_type = dwarf->ResolveTypeUID(DIERef(type_die_form)); | |||
1284 | ||||
1285 | if (func_type) | |||
1286 | return_clang_type = func_type->GetForwardCompilerType(); | |||
1287 | else | |||
1288 | return_clang_type = m_ast.GetBasicType(eBasicTypeVoid); | |||
1289 | ||||
1290 | std::vector<CompilerType> function_param_types; | |||
1291 | std::vector<clang::ParmVarDecl *> function_param_decls; | |||
1292 | ||||
1293 | // Parse the function children for the parameters | |||
1294 | ||||
1295 | DWARFDIE decl_ctx_die; | |||
1296 | clang::DeclContext *containing_decl_ctx = | |||
1297 | GetClangDeclContextContainingDIE(die, &decl_ctx_die); | |||
1298 | const clang::Decl::Kind containing_decl_kind = | |||
1299 | containing_decl_ctx->getDeclKind(); | |||
1300 | ||||
1301 | bool is_cxx_method = DeclKindIsCXXClass(containing_decl_kind); | |||
1302 | // Start off static. This will be set to false in | |||
1303 | // ParseChildParameters(...) if we find a "this" parameters as the | |||
1304 | // first parameter | |||
1305 | if (is_cxx_method) { | |||
1306 | is_static = true; | |||
1307 | } | |||
1308 | ||||
1309 | if (die.HasChildren()) { | |||
1310 | bool skip_artificial = true; | |||
1311 | ParseChildParameters(sc, containing_decl_ctx, die, skip_artificial, | |||
1312 | is_static, is_variadic, has_template_params, | |||
1313 | function_param_types, function_param_decls, | |||
1314 | type_quals); | |||
1315 | } | |||
1316 | ||||
1317 | bool ignore_containing_context = false; | |||
1318 | // Check for templatized class member functions. If we had any | |||
1319 | // DW_TAG_template_type_parameter or DW_TAG_template_value_parameter | |||
1320 | // the DW_TAG_subprogram DIE, then we can't let this become a method in | |||
1321 | // a class. Why? Because templatized functions are only emitted if one | |||
1322 | // of the templatized methods is used in the current compile unit and | |||
1323 | // we will end up with classes that may or may not include these member | |||
1324 | // functions and this means one class won't match another class | |||
1325 | // definition and it affects our ability to use a class in the clang | |||
1326 | // expression parser. So for the greater good, we currently must not | |||
1327 | // allow any template member functions in a class definition. | |||
1328 | if (is_cxx_method && has_template_params) { | |||
1329 | ignore_containing_context = true; | |||
1330 | is_cxx_method = false; | |||
1331 | } | |||
1332 | ||||
1333 | // clang_type will get the function prototype clang type after this | |||
1334 | // call | |||
1335 | clang_type = m_ast.CreateFunctionType( | |||
1336 | return_clang_type, function_param_types.data(), | |||
1337 | function_param_types.size(), is_variadic, type_quals); | |||
1338 | ||||
1339 | if (type_name_cstr) { | |||
1340 | bool type_handled = false; | |||
1341 | if (tag == DW_TAG_subprogram || tag == DW_TAG_inlined_subroutine) { | |||
1342 | ObjCLanguage::MethodName objc_method(type_name_cstr, true); | |||
1343 | if (objc_method.IsValid(true)) { | |||
1344 | CompilerType class_opaque_type; | |||
1345 | ConstString class_name(objc_method.GetClassName()); | |||
1346 | if (class_name) { | |||
1347 | TypeSP complete_objc_class_type_sp( | |||
1348 | dwarf->FindCompleteObjCDefinitionTypeForDIE( | |||
1349 | DWARFDIE(), class_name, false)); | |||
1350 | ||||
1351 | if (complete_objc_class_type_sp) { | |||
1352 | CompilerType type_clang_forward_type = | |||
1353 | complete_objc_class_type_sp->GetForwardCompilerType(); | |||
1354 | if (ClangASTContext::IsObjCObjectOrInterfaceType( | |||
1355 | type_clang_forward_type)) | |||
1356 | class_opaque_type = type_clang_forward_type; | |||
1357 | } | |||
1358 | } | |||
1359 | ||||
1360 | if (class_opaque_type) { | |||
1361 | // If accessibility isn't set to anything valid, assume public | |||
1362 | // for now... | |||
1363 | if (accessibility == eAccessNone) | |||
1364 | accessibility = eAccessPublic; | |||
1365 | ||||
1366 | clang::ObjCMethodDecl *objc_method_decl = | |||
1367 | m_ast.AddMethodToObjCObjectType( | |||
1368 | class_opaque_type, type_name_cstr, clang_type, | |||
1369 | accessibility, is_artificial, is_variadic); | |||
1370 | type_handled = objc_method_decl != NULL__null; | |||
1371 | if (type_handled) { | |||
1372 | LinkDeclContextToDIE( | |||
1373 | ClangASTContext::GetAsDeclContext(objc_method_decl), die); | |||
1374 | m_ast.SetMetadataAsUserID(objc_method_decl, die.GetID()); | |||
1375 | } else { | |||
1376 | dwarf->GetObjectFile()->GetModule()->ReportError( | |||
1377 | "{0x%8.8x}: invalid Objective-C method 0x%4.4x (%s), " | |||
1378 | "please file a bug and attach the file at the start of " | |||
1379 | "this error message", | |||
1380 | die.GetOffset(), tag, DW_TAG_value_to_name(tag)); | |||
1381 | } | |||
1382 | } | |||
1383 | } else if (is_cxx_method) { | |||
1384 | // Look at the parent of this DIE and see if is is a class or | |||
1385 | // struct and see if this is actually a C++ method | |||
1386 | Type *class_type = dwarf->ResolveType(decl_ctx_die); | |||
1387 | if (class_type) { | |||
1388 | bool alternate_defn = false; | |||
1389 | if (class_type->GetID() != decl_ctx_die.GetID() || | |||
1390 | decl_ctx_die.GetContainingDWOModuleDIE()) { | |||
1391 | alternate_defn = true; | |||
1392 | ||||
1393 | // We uniqued the parent class of this function to another | |||
1394 | // class so we now need to associate all dies under | |||
1395 | // "decl_ctx_die" to DIEs in the DIE for "class_type"... | |||
1396 | SymbolFileDWARF *class_symfile = NULL__null; | |||
1397 | DWARFDIE class_type_die; | |||
1398 | ||||
1399 | SymbolFileDWARFDebugMap *debug_map_symfile = | |||
1400 | dwarf->GetDebugMapSymfile(); | |||
1401 | if (debug_map_symfile) { | |||
1402 | class_symfile = debug_map_symfile->GetSymbolFileByOSOIndex( | |||
1403 | SymbolFileDWARFDebugMap::GetOSOIndexFromUserID( | |||
1404 | class_type->GetID())); | |||
1405 | class_type_die = class_symfile->DebugInfo()->GetDIE( | |||
1406 | DIERef(class_type->GetID(), dwarf)); | |||
1407 | } else { | |||
1408 | class_symfile = dwarf; | |||
1409 | class_type_die = dwarf->DebugInfo()->GetDIE( | |||
1410 | DIERef(class_type->GetID(), dwarf)); | |||
1411 | } | |||
1412 | if (class_type_die) { | |||
1413 | DWARFDIECollection failures; | |||
1414 | ||||
1415 | CopyUniqueClassMethodTypes(decl_ctx_die, class_type_die, | |||
1416 | class_type, failures); | |||
1417 | ||||
1418 | // FIXME do something with these failures that's smarter | |||
1419 | // than | |||
1420 | // just dropping them on the ground. Unfortunately classes | |||
1421 | // don't like having stuff added to them after their | |||
1422 | // definitions are complete... | |||
1423 | ||||
1424 | type_ptr = dwarf->GetDIEToType()[die.GetDIE()]; | |||
1425 | if (type_ptr && type_ptr != DIE_IS_BEING_PARSED((lldb_private::Type *)1)) { | |||
1426 | type_sp = type_ptr->shared_from_this(); | |||
1427 | break; | |||
1428 | } | |||
1429 | } | |||
1430 | } | |||
1431 | ||||
1432 | if (specification_die_form.IsValid()) { | |||
1433 | // We have a specification which we are going to base our | |||
1434 | // function prototype off of, so we need this type to be | |||
1435 | // completed so that the m_die_to_decl_ctx for the method in | |||
1436 | // the specification has a valid clang decl context. | |||
1437 | class_type->GetForwardCompilerType(); | |||
1438 | // If we have a specification, then the function type should | |||
1439 | // have been made with the specification and not with this | |||
1440 | // die. | |||
1441 | DWARFDIE spec_die = dwarf->DebugInfo()->GetDIE( | |||
1442 | DIERef(specification_die_form)); | |||
1443 | clang::DeclContext *spec_clang_decl_ctx = | |||
1444 | GetClangDeclContextForDIE(spec_die); | |||
1445 | if (spec_clang_decl_ctx) { | |||
1446 | LinkDeclContextToDIE(spec_clang_decl_ctx, die); | |||
1447 | } else { | |||
1448 | dwarf->GetObjectFile()->GetModule()->ReportWarning( | |||
1449 | "0x%8.8" PRIx64"l" "x" ": DW_AT_specification(0x%8.8" PRIx64"l" "x" | |||
1450 | ") has no decl\n", | |||
1451 | die.GetID(), specification_die_form.Reference()); | |||
1452 | } | |||
1453 | type_handled = true; | |||
1454 | } else if (abstract_origin_die_form.IsValid()) { | |||
1455 | // We have a specification which we are going to base our | |||
1456 | // function prototype off of, so we need this type to be | |||
1457 | // completed so that the m_die_to_decl_ctx for the method in | |||
1458 | // the abstract origin has a valid clang decl context. | |||
1459 | class_type->GetForwardCompilerType(); | |||
1460 | ||||
1461 | DWARFDIE abs_die = dwarf->DebugInfo()->GetDIE( | |||
1462 | DIERef(abstract_origin_die_form)); | |||
1463 | clang::DeclContext *abs_clang_decl_ctx = | |||
1464 | GetClangDeclContextForDIE(abs_die); | |||
1465 | if (abs_clang_decl_ctx) { | |||
1466 | LinkDeclContextToDIE(abs_clang_decl_ctx, die); | |||
1467 | } else { | |||
1468 | dwarf->GetObjectFile()->GetModule()->ReportWarning( | |||
1469 | "0x%8.8" PRIx64"l" "x" ": DW_AT_abstract_origin(0x%8.8" PRIx64"l" "x" | |||
1470 | ") has no decl\n", | |||
1471 | die.GetID(), abstract_origin_die_form.Reference()); | |||
1472 | } | |||
1473 | type_handled = true; | |||
1474 | } else { | |||
1475 | CompilerType class_opaque_type = | |||
1476 | class_type->GetForwardCompilerType(); | |||
1477 | if (ClangASTContext::IsCXXClassType(class_opaque_type)) { | |||
1478 | if (class_opaque_type.IsBeingDefined() || alternate_defn) { | |||
1479 | if (!is_static && !die.HasChildren()) { | |||
1480 | // We have a C++ member function with no children (this | |||
1481 | // pointer!) and clang will get mad if we try and make | |||
1482 | // a function that isn't well formed in the DWARF, so | |||
1483 | // we will just skip it... | |||
1484 | type_handled = true; | |||
1485 | } else { | |||
1486 | bool add_method = true; | |||
1487 | if (alternate_defn) { | |||
1488 | // If an alternate definition for the class exists, | |||
1489 | // then add the method only if an equivalent is not | |||
1490 | // already present. | |||
1491 | clang::CXXRecordDecl *record_decl = | |||
1492 | m_ast.GetAsCXXRecordDecl( | |||
1493 | class_opaque_type.GetOpaqueQualType()); | |||
1494 | if (record_decl) { | |||
1495 | for (auto method_iter = record_decl->method_begin(); | |||
1496 | method_iter != record_decl->method_end(); | |||
1497 | method_iter++) { | |||
1498 | clang::CXXMethodDecl *method_decl = *method_iter; | |||
1499 | if (method_decl->getNameInfo().getAsString() == | |||
1500 | std::string(type_name_cstr)) { | |||
1501 | if (method_decl->getType() == | |||
1502 | ClangUtil::GetQualType(clang_type)) { | |||
1503 | add_method = false; | |||
1504 | LinkDeclContextToDIE( | |||
1505 | ClangASTContext::GetAsDeclContext( | |||
1506 | method_decl), | |||
1507 | die); | |||
1508 | type_handled = true; | |||
1509 | ||||
1510 | break; | |||
1511 | } | |||
1512 | } | |||
1513 | } | |||
1514 | } | |||
1515 | } | |||
1516 | ||||
1517 | if (add_method) { | |||
1518 | llvm::PrettyStackTraceFormat stack_trace( | |||
1519 | "SymbolFileDWARF::ParseType() is adding a method " | |||
1520 | "%s to class %s in DIE 0x%8.8" PRIx64"l" "x" " from %s", | |||
1521 | type_name_cstr, | |||
1522 | class_type->GetName().GetCString(), die.GetID(), | |||
1523 | dwarf->GetObjectFile() | |||
1524 | ->GetFileSpec() | |||
1525 | .GetPath() | |||
1526 | .c_str()); | |||
1527 | ||||
1528 | const bool is_attr_used = false; | |||
1529 | // Neither GCC 4.2 nor clang++ currently set a valid | |||
1530 | // accessibility in the DWARF for C++ methods... | |||
1531 | // Default to public for now... | |||
1532 | if (accessibility == eAccessNone) | |||
1533 | accessibility = eAccessPublic; | |||
1534 | ||||
1535 | clang::CXXMethodDecl *cxx_method_decl = | |||
1536 | m_ast.AddMethodToCXXRecordType( | |||
1537 | class_opaque_type.GetOpaqueQualType(), | |||
1538 | type_name_cstr, mangled_name_cstr, clang_type, | |||
1539 | accessibility, is_virtual, is_static, | |||
1540 | is_inline, is_explicit, is_attr_used, | |||
1541 | is_artificial); | |||
1542 | ||||
1543 | type_handled = cxx_method_decl != NULL__null; | |||
1544 | ||||
1545 | if (type_handled) { | |||
1546 | LinkDeclContextToDIE( | |||
1547 | ClangASTContext::GetAsDeclContext( | |||
1548 | cxx_method_decl), | |||
1549 | die); | |||
1550 | ||||
1551 | ClangASTMetadata metadata; | |||
1552 | metadata.SetUserID(die.GetID()); | |||
1553 | ||||
1554 | if (!object_pointer_name.empty()) { | |||
1555 | metadata.SetObjectPtrName( | |||
1556 | object_pointer_name.c_str()); | |||
1557 | if (log) | |||
1558 | log->Printf( | |||
1559 | "Setting object pointer name: %s on method " | |||
1560 | "object %p.\n", | |||
1561 | object_pointer_name.c_str(), | |||
1562 | static_cast<void *>(cxx_method_decl)); | |||
1563 | } | |||
1564 | m_ast.SetMetadata(cxx_method_decl, metadata); | |||
1565 | } else { | |||
1566 | ignore_containing_context = true; | |||
1567 | } | |||
1568 | } | |||
1569 | } | |||
1570 | } else { | |||
1571 | // We were asked to parse the type for a method in a | |||
1572 | // class, yet the class hasn't been asked to complete | |||
1573 | // itself through the clang::ExternalASTSource protocol, | |||
1574 | // so we need to just have the class complete itself and | |||
1575 | // do things the right way, then our | |||
1576 | // DIE should then have an entry in the | |||
1577 | // dwarf->GetDIEToType() map. First | |||
1578 | // we need to modify the dwarf->GetDIEToType() so it | |||
1579 | // doesn't think we are trying to parse this DIE | |||
1580 | // anymore... | |||
1581 | dwarf->GetDIEToType()[die.GetDIE()] = NULL__null; | |||
1582 | ||||
1583 | // Now we get the full type to force our class type to | |||
1584 | // complete itself using the clang::ExternalASTSource | |||
1585 | // protocol which will parse all base classes and all | |||
1586 | // methods (including the method for this DIE). | |||
1587 | class_type->GetFullCompilerType(); | |||
1588 | ||||
1589 | // The type for this DIE should have been filled in the | |||
1590 | // function call above | |||
1591 | type_ptr = dwarf->GetDIEToType()[die.GetDIE()]; | |||
1592 | if (type_ptr && type_ptr != DIE_IS_BEING_PARSED((lldb_private::Type *)1)) { | |||
1593 | type_sp = type_ptr->shared_from_this(); | |||
1594 | break; | |||
1595 | } | |||
1596 | ||||
1597 | // FIXME This is fixing some even uglier behavior but we | |||
1598 | // really need to | |||
1599 | // uniq the methods of each class as well as the class | |||
1600 | // itself. <rdar://problem/11240464> | |||
1601 | type_handled = true; | |||
1602 | } | |||
1603 | } | |||
1604 | } | |||
1605 | } | |||
1606 | } | |||
1607 | } | |||
1608 | ||||
1609 | if (!type_handled) { | |||
1610 | clang::FunctionDecl *function_decl = nullptr; | |||
1611 | ||||
1612 | if (abstract_origin_die_form.IsValid()) { | |||
1613 | DWARFDIE abs_die = | |||
1614 | dwarf->DebugInfo()->GetDIE(DIERef(abstract_origin_die_form)); | |||
1615 | ||||
1616 | SymbolContext sc; | |||
1617 | ||||
1618 | if (dwarf->ResolveType(abs_die)) { | |||
1619 | function_decl = llvm::dyn_cast_or_null<clang::FunctionDecl>( | |||
1620 | GetCachedClangDeclContextForDIE(abs_die)); | |||
1621 | ||||
1622 | if (function_decl) { | |||
1623 | LinkDeclContextToDIE(function_decl, die); | |||
1624 | } | |||
1625 | } | |||
1626 | } | |||
1627 | ||||
1628 | if (!function_decl) { | |||
1629 | // We just have a function that isn't part of a class | |||
1630 | function_decl = m_ast.CreateFunctionDeclaration( | |||
1631 | ignore_containing_context ? m_ast.GetTranslationUnitDecl() | |||
1632 | : containing_decl_ctx, | |||
1633 | type_name_cstr, clang_type, storage, is_inline); | |||
1634 | ||||
1635 | if (has_template_params) { | |||
1636 | ClangASTContext::TemplateParameterInfos template_param_infos; | |||
1637 | ParseTemplateParameterInfos(die, template_param_infos); | |||
1638 | clang::FunctionTemplateDecl *func_template_decl = | |||
1639 | m_ast.CreateFunctionTemplateDecl( | |||
1640 | containing_decl_ctx, function_decl, type_name_cstr, | |||
1641 | template_param_infos); | |||
1642 | m_ast.CreateFunctionTemplateSpecializationInfo( | |||
1643 | function_decl, func_template_decl, template_param_infos); | |||
1644 | } | |||
1645 | ||||
1646 | lldbassert(function_decl)lldb_private::lldb_assert(function_decl, "function_decl", __FUNCTION__ , "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 1646); | |||
1647 | ||||
1648 | if (function_decl) { | |||
1649 | LinkDeclContextToDIE(function_decl, die); | |||
1650 | ||||
1651 | if (!function_param_decls.empty()) | |||
1652 | m_ast.SetFunctionParameters(function_decl, | |||
1653 | &function_param_decls.front(), | |||
1654 | function_param_decls.size()); | |||
1655 | ||||
1656 | ClangASTMetadata metadata; | |||
1657 | metadata.SetUserID(die.GetID()); | |||
1658 | ||||
1659 | if (!object_pointer_name.empty()) { | |||
1660 | metadata.SetObjectPtrName(object_pointer_name.c_str()); | |||
1661 | if (log) | |||
1662 | log->Printf("Setting object pointer name: %s on function " | |||
1663 | "object %p.", | |||
1664 | object_pointer_name.c_str(), | |||
1665 | static_cast<void *>(function_decl)); | |||
1666 | } | |||
1667 | m_ast.SetMetadata(function_decl, metadata); | |||
1668 | } | |||
1669 | } | |||
1670 | } | |||
1671 | } | |||
1672 | type_sp.reset(new Type(die.GetID(), dwarf, type_name_const_str, 0, NULL__null, | |||
1673 | LLDB_INVALID_UID(18446744073709551615UL), Type::eEncodingIsUID, &decl, | |||
1674 | clang_type, Type::eResolveStateFull)); | |||
1675 | assert(type_sp.get())(static_cast <bool> (type_sp.get()) ? void (0) : __assert_fail ("type_sp.get()", "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 1675, __extension__ __PRETTY_FUNCTION__)); | |||
1676 | } break; | |||
1677 | ||||
1678 | case DW_TAG_array_type: { | |||
1679 | // Set a bit that lets us know that we are currently parsing this | |||
1680 | dwarf->GetDIEToType()[die.GetDIE()] = DIE_IS_BEING_PARSED((lldb_private::Type *)1); | |||
1681 | ||||
1682 | DWARFFormValue type_die_form; | |||
1683 | int64_t first_index = 0; | |||
1684 | uint32_t byte_stride = 0; | |||
1685 | uint32_t bit_stride = 0; | |||
1686 | bool is_vector = false; | |||
1687 | const size_t num_attributes = die.GetAttributes(attributes); | |||
1688 | ||||
1689 | if (num_attributes > 0) { | |||
1690 | uint32_t i; | |||
1691 | for (i = 0; i < num_attributes; ++i) { | |||
1692 | attr = attributes.AttributeAtIndex(i); | |||
1693 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { | |||
1694 | switch (attr) { | |||
1695 | case DW_AT_decl_file: | |||
1696 | decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex( | |||
1697 | form_value.Unsigned())); | |||
1698 | break; | |||
1699 | case DW_AT_decl_line: | |||
1700 | decl.SetLine(form_value.Unsigned()); | |||
1701 | break; | |||
1702 | case DW_AT_decl_column: | |||
1703 | decl.SetColumn(form_value.Unsigned()); | |||
1704 | break; | |||
1705 | case DW_AT_name: | |||
1706 | type_name_cstr = form_value.AsCString(); | |||
1707 | type_name_const_str.SetCString(type_name_cstr); | |||
1708 | break; | |||
1709 | ||||
1710 | case DW_AT_type: | |||
1711 | type_die_form = form_value; | |||
1712 | break; | |||
1713 | case DW_AT_byte_size: | |||
1714 | break; // byte_size = form_value.Unsigned(); break; | |||
1715 | case DW_AT_byte_stride: | |||
1716 | byte_stride = form_value.Unsigned(); | |||
1717 | break; | |||
1718 | case DW_AT_bit_stride: | |||
1719 | bit_stride = form_value.Unsigned(); | |||
1720 | break; | |||
1721 | case DW_AT_GNU_vector: | |||
1722 | is_vector = form_value.Boolean(); | |||
1723 | break; | |||
1724 | case DW_AT_accessibility: | |||
1725 | break; // accessibility = | |||
1726 | // DW_ACCESS_to_AccessType(form_value.Unsigned()); break; | |||
1727 | case DW_AT_declaration: | |||
1728 | break; // is_forward_declaration = form_value.Boolean(); break; | |||
1729 | case DW_AT_allocated: | |||
1730 | case DW_AT_associated: | |||
1731 | case DW_AT_data_location: | |||
1732 | case DW_AT_description: | |||
1733 | case DW_AT_ordering: | |||
1734 | case DW_AT_start_scope: | |||
1735 | case DW_AT_visibility: | |||
1736 | case DW_AT_specification: | |||
1737 | case DW_AT_abstract_origin: | |||
1738 | case DW_AT_sibling: | |||
1739 | break; | |||
1740 | } | |||
1741 | } | |||
1742 | } | |||
1743 | ||||
1744 | DEBUG_PRINTF("0x%8.8" PRIx64 ": %s (\"%s\")\n", die.GetID(), | |||
1745 | DW_TAG_value_to_name(tag), type_name_cstr); | |||
1746 | ||||
1747 | DIERef type_die_ref(type_die_form); | |||
1748 | Type *element_type = dwarf->ResolveTypeUID(type_die_ref); | |||
1749 | ||||
1750 | if (element_type) { | |||
1751 | std::vector<uint64_t> element_orders; | |||
1752 | ParseChildArrayInfo(sc, die, first_index, element_orders, | |||
1753 | byte_stride, bit_stride); | |||
1754 | if (byte_stride == 0 && bit_stride == 0) | |||
1755 | byte_stride = element_type->GetByteSize(); | |||
1756 | CompilerType array_element_type = | |||
1757 | element_type->GetForwardCompilerType(); | |||
1758 | ||||
1759 | if (ClangASTContext::IsCXXClassType(array_element_type) && | |||
1760 | array_element_type.GetCompleteType() == false) { | |||
1761 | ModuleSP module_sp = die.GetModule(); | |||
1762 | if (module_sp) { | |||
1763 | if (die.GetCU()->GetProducer() == eProducerClang) | |||
1764 | module_sp->ReportError( | |||
1765 | "DWARF DW_TAG_array_type DIE at 0x%8.8x has a " | |||
1766 | "class/union/struct element type DIE 0x%8.8x that is a " | |||
1767 | "forward declaration, not a complete definition.\nTry " | |||
1768 | "compiling the source file with -fstandalone-debug or " | |||
1769 | "disable -gmodules", | |||
1770 | die.GetOffset(), type_die_ref.die_offset); | |||
1771 | else | |||
1772 | module_sp->ReportError( | |||
1773 | "DWARF DW_TAG_array_type DIE at 0x%8.8x has a " | |||
1774 | "class/union/struct element type DIE 0x%8.8x that is a " | |||
1775 | "forward declaration, not a complete definition.\nPlease " | |||
1776 | "file a bug against the compiler and include the " | |||
1777 | "preprocessed output for %s", | |||
1778 | die.GetOffset(), type_die_ref.die_offset, | |||
1779 | die.GetLLDBCompileUnit() | |||
1780 | ? die.GetLLDBCompileUnit()->GetPath().c_str() | |||
1781 | : "the source file"); | |||
1782 | } | |||
1783 | ||||
1784 | // We have no choice other than to pretend that the element class | |||
1785 | // type is complete. If we don't do this, clang will crash when | |||
1786 | // trying to layout the class. Since we provide layout | |||
1787 | // assistance, all ivars in this class and other classes will be | |||
1788 | // fine, this is the best we can do short of crashing. | |||
1789 | if (ClangASTContext::StartTagDeclarationDefinition( | |||
1790 | array_element_type)) { | |||
1791 | ClangASTContext::CompleteTagDeclarationDefinition( | |||
1792 | array_element_type); | |||
1793 | } else { | |||
1794 | module_sp->ReportError("DWARF DIE at 0x%8.8x was not able to " | |||
1795 | "start its definition.\nPlease file a " | |||
1796 | "bug and attach the file at the start " | |||
1797 | "of this error message", | |||
1798 | type_die_ref.die_offset); | |||
1799 | } | |||
1800 | } | |||
1801 | ||||
1802 | uint64_t array_element_bit_stride = byte_stride * 8 + bit_stride; | |||
1803 | if (element_orders.size() > 0) { | |||
1804 | uint64_t num_elements = 0; | |||
1805 | std::vector<uint64_t>::const_reverse_iterator pos; | |||
1806 | std::vector<uint64_t>::const_reverse_iterator end = | |||
1807 | element_orders.rend(); | |||
1808 | for (pos = element_orders.rbegin(); pos != end; ++pos) { | |||
1809 | num_elements = *pos; | |||
1810 | clang_type = m_ast.CreateArrayType(array_element_type, | |||
1811 | num_elements, is_vector); | |||
1812 | array_element_type = clang_type; | |||
1813 | array_element_bit_stride = | |||
1814 | num_elements ? array_element_bit_stride * num_elements | |||
1815 | : array_element_bit_stride; | |||
1816 | } | |||
1817 | } else { | |||
1818 | clang_type = | |||
1819 | m_ast.CreateArrayType(array_element_type, 0, is_vector); | |||
1820 | } | |||
1821 | ConstString empty_name; | |||
1822 | type_sp.reset(new Type( | |||
1823 | die.GetID(), dwarf, empty_name, array_element_bit_stride / 8, | |||
1824 | NULL__null, DIERef(type_die_form).GetUID(dwarf), Type::eEncodingIsUID, | |||
1825 | &decl, clang_type, Type::eResolveStateFull)); | |||
1826 | type_sp->SetEncodingType(element_type); | |||
1827 | } | |||
1828 | } | |||
1829 | } break; | |||
1830 | ||||
1831 | case DW_TAG_ptr_to_member_type: { | |||
1832 | DWARFFormValue type_die_form; | |||
1833 | DWARFFormValue containing_type_die_form; | |||
1834 | ||||
1835 | const size_t num_attributes = die.GetAttributes(attributes); | |||
1836 | ||||
1837 | if (num_attributes > 0) { | |||
1838 | uint32_t i; | |||
1839 | for (i = 0; i < num_attributes; ++i) { | |||
1840 | attr = attributes.AttributeAtIndex(i); | |||
1841 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { | |||
1842 | switch (attr) { | |||
1843 | case DW_AT_type: | |||
1844 | type_die_form = form_value; | |||
1845 | break; | |||
1846 | case DW_AT_containing_type: | |||
1847 | containing_type_die_form = form_value; | |||
1848 | break; | |||
1849 | } | |||
1850 | } | |||
1851 | } | |||
1852 | ||||
1853 | Type *pointee_type = dwarf->ResolveTypeUID(DIERef(type_die_form)); | |||
1854 | Type *class_type = | |||
1855 | dwarf->ResolveTypeUID(DIERef(containing_type_die_form)); | |||
1856 | ||||
1857 | CompilerType pointee_clang_type = | |||
1858 | pointee_type->GetForwardCompilerType(); | |||
1859 | CompilerType class_clang_type = class_type->GetLayoutCompilerType(); | |||
1860 | ||||
1861 | clang_type = ClangASTContext::CreateMemberPointerType( | |||
1862 | class_clang_type, pointee_clang_type); | |||
1863 | ||||
1864 | byte_size = clang_type.GetByteSize(nullptr); | |||
1865 | ||||
1866 | type_sp.reset(new Type(die.GetID(), dwarf, type_name_const_str, | |||
1867 | byte_size, NULL__null, LLDB_INVALID_UID(18446744073709551615UL), | |||
1868 | Type::eEncodingIsUID, NULL__null, clang_type, | |||
1869 | Type::eResolveStateForward)); | |||
1870 | } | |||
1871 | ||||
1872 | break; | |||
1873 | } | |||
1874 | default: | |||
1875 | dwarf->GetObjectFile()->GetModule()->ReportError( | |||
1876 | "{0x%8.8x}: unhandled type tag 0x%4.4x (%s), please file a bug and " | |||
1877 | "attach the file at the start of this error message", | |||
1878 | die.GetOffset(), tag, DW_TAG_value_to_name(tag)); | |||
1879 | break; | |||
1880 | } | |||
1881 | ||||
1882 | if (type_sp.get()) { | |||
1883 | DWARFDIE sc_parent_die = | |||
1884 | SymbolFileDWARF::GetParentSymbolContextDIE(die); | |||
1885 | dw_tag_t sc_parent_tag = sc_parent_die.Tag(); | |||
1886 | ||||
1887 | SymbolContextScope *symbol_context_scope = NULL__null; | |||
1888 | if (sc_parent_tag == DW_TAG_compile_unit || | |||
1889 | sc_parent_tag == DW_TAG_partial_unit) { | |||
1890 | symbol_context_scope = sc.comp_unit; | |||
1891 | } else if (sc.function != NULL__null && sc_parent_die) { | |||
1892 | symbol_context_scope = | |||
1893 | sc.function->GetBlock(true).FindBlockByID(sc_parent_die.GetID()); | |||
1894 | if (symbol_context_scope == NULL__null) | |||
1895 | symbol_context_scope = sc.function; | |||
1896 | } | |||
1897 | ||||
1898 | if (symbol_context_scope != NULL__null) { | |||
1899 | type_sp->SetSymbolContextScope(symbol_context_scope); | |||
1900 | } | |||
1901 | ||||
1902 | // We are ready to put this type into the uniqued list up at the module | |||
1903 | // level | |||
1904 | type_list->Insert(type_sp); | |||
1905 | ||||
1906 | dwarf->GetDIEToType()[die.GetDIE()] = type_sp.get(); | |||
1907 | } | |||
1908 | } else if (type_ptr != DIE_IS_BEING_PARSED((lldb_private::Type *)1)) { | |||
1909 | type_sp = type_ptr->shared_from_this(); | |||
1910 | } | |||
1911 | } | |||
1912 | return type_sp; | |||
1913 | } | |||
1914 | ||||
1915 | // DWARF parsing functions | |||
1916 | ||||
1917 | class DWARFASTParserClang::DelayedAddObjCClassProperty { | |||
1918 | public: | |||
1919 | DelayedAddObjCClassProperty( | |||
1920 | const CompilerType &class_opaque_type, const char *property_name, | |||
1921 | const CompilerType &property_opaque_type, // The property type is only | |||
1922 | // required if you don't have an | |||
1923 | // ivar decl | |||
1924 | clang::ObjCIvarDecl *ivar_decl, const char *property_setter_name, | |||
1925 | const char *property_getter_name, uint32_t property_attributes, | |||
1926 | const ClangASTMetadata *metadata) | |||
1927 | : m_class_opaque_type(class_opaque_type), m_property_name(property_name), | |||
1928 | m_property_opaque_type(property_opaque_type), m_ivar_decl(ivar_decl), | |||
1929 | m_property_setter_name(property_setter_name), | |||
1930 | m_property_getter_name(property_getter_name), | |||
1931 | m_property_attributes(property_attributes) { | |||
1932 | if (metadata != NULL__null) { | |||
1933 | m_metadata_ap.reset(new ClangASTMetadata()); | |||
1934 | *m_metadata_ap = *metadata; | |||
1935 | } | |||
1936 | } | |||
1937 | ||||
1938 | DelayedAddObjCClassProperty(const DelayedAddObjCClassProperty &rhs) { | |||
1939 | *this = rhs; | |||
1940 | } | |||
1941 | ||||
1942 | DelayedAddObjCClassProperty & | |||
1943 | operator=(const DelayedAddObjCClassProperty &rhs) { | |||
1944 | m_class_opaque_type = rhs.m_class_opaque_type; | |||
1945 | m_property_name = rhs.m_property_name; | |||
1946 | m_property_opaque_type = rhs.m_property_opaque_type; | |||
1947 | m_ivar_decl = rhs.m_ivar_decl; | |||
1948 | m_property_setter_name = rhs.m_property_setter_name; | |||
1949 | m_property_getter_name = rhs.m_property_getter_name; | |||
1950 | m_property_attributes = rhs.m_property_attributes; | |||
1951 | ||||
1952 | if (rhs.m_metadata_ap.get()) { | |||
1953 | m_metadata_ap.reset(new ClangASTMetadata()); | |||
1954 | *m_metadata_ap = *rhs.m_metadata_ap; | |||
1955 | } | |||
1956 | return *this; | |||
1957 | } | |||
1958 | ||||
1959 | bool Finalize() { | |||
1960 | return ClangASTContext::AddObjCClassProperty( | |||
1961 | m_class_opaque_type, m_property_name, m_property_opaque_type, | |||
1962 | m_ivar_decl, m_property_setter_name, m_property_getter_name, | |||
1963 | m_property_attributes, m_metadata_ap.get()); | |||
1964 | } | |||
1965 | ||||
1966 | private: | |||
1967 | CompilerType m_class_opaque_type; | |||
1968 | const char *m_property_name; | |||
1969 | CompilerType m_property_opaque_type; | |||
1970 | clang::ObjCIvarDecl *m_ivar_decl; | |||
1971 | const char *m_property_setter_name; | |||
1972 | const char *m_property_getter_name; | |||
1973 | uint32_t m_property_attributes; | |||
1974 | std::unique_ptr<ClangASTMetadata> m_metadata_ap; | |||
1975 | }; | |||
1976 | ||||
1977 | bool DWARFASTParserClang::ParseTemplateDIE( | |||
1978 | const DWARFDIE &die, | |||
1979 | ClangASTContext::TemplateParameterInfos &template_param_infos) { | |||
1980 | const dw_tag_t tag = die.Tag(); | |||
1981 | bool is_template_template_argument = false; | |||
1982 | ||||
1983 | switch (tag) { | |||
1984 | case DW_TAG_GNU_template_parameter_pack: { | |||
1985 | template_param_infos.packed_args.reset( | |||
1986 | new ClangASTContext::TemplateParameterInfos); | |||
1987 | for (DWARFDIE child_die = die.GetFirstChild(); child_die.IsValid(); | |||
1988 | child_die = child_die.GetSibling()) { | |||
1989 | if (!ParseTemplateDIE(child_die, *template_param_infos.packed_args)) | |||
1990 | return false; | |||
1991 | } | |||
1992 | if (const char *name = die.GetName()) { | |||
1993 | template_param_infos.pack_name = name; | |||
1994 | } | |||
1995 | return true; | |||
1996 | } | |||
1997 | case DW_TAG_GNU_template_template_param: | |||
1998 | is_template_template_argument = true; | |||
1999 | LLVM_FALLTHROUGH[[clang::fallthrough]]; | |||
2000 | case DW_TAG_template_type_parameter: | |||
2001 | case DW_TAG_template_value_parameter: { | |||
2002 | DWARFAttributes attributes; | |||
2003 | const size_t num_attributes = die.GetAttributes(attributes); | |||
2004 | const char *name = nullptr; | |||
2005 | const char *template_name = nullptr; | |||
2006 | CompilerType clang_type; | |||
2007 | uint64_t uval64 = 0; | |||
2008 | bool uval64_valid = false; | |||
2009 | if (num_attributes > 0) { | |||
2010 | DWARFFormValue form_value; | |||
2011 | for (size_t i = 0; i < num_attributes; ++i) { | |||
2012 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||
2013 | ||||
2014 | switch (attr) { | |||
2015 | case DW_AT_name: | |||
2016 | if (attributes.ExtractFormValueAtIndex(i, form_value)) | |||
2017 | name = form_value.AsCString(); | |||
2018 | break; | |||
2019 | ||||
2020 | case DW_AT_GNU_template_name: | |||
2021 | if (attributes.ExtractFormValueAtIndex(i, form_value)) | |||
2022 | template_name = form_value.AsCString(); | |||
2023 | break; | |||
2024 | ||||
2025 | case DW_AT_type: | |||
2026 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { | |||
2027 | Type *lldb_type = die.ResolveTypeUID(DIERef(form_value)); | |||
2028 | if (lldb_type) | |||
2029 | clang_type = lldb_type->GetForwardCompilerType(); | |||
2030 | } | |||
2031 | break; | |||
2032 | ||||
2033 | case DW_AT_const_value: | |||
2034 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { | |||
2035 | uval64_valid = true; | |||
2036 | uval64 = form_value.Unsigned(); | |||
2037 | } | |||
2038 | break; | |||
2039 | default: | |||
2040 | break; | |||
2041 | } | |||
2042 | } | |||
2043 | ||||
2044 | clang::ASTContext *ast = m_ast.getASTContext(); | |||
2045 | if (!clang_type) | |||
2046 | clang_type = m_ast.GetBasicType(eBasicTypeVoid); | |||
2047 | ||||
2048 | if (!is_template_template_argument) { | |||
2049 | bool is_signed = false; | |||
2050 | if (name && name[0]) | |||
2051 | template_param_infos.names.push_back(name); | |||
2052 | else | |||
2053 | template_param_infos.names.push_back(NULL__null); | |||
2054 | ||||
2055 | // Get the signed value for any integer or enumeration if available | |||
2056 | clang_type.IsIntegerOrEnumerationType(is_signed); | |||
2057 | ||||
2058 | if (tag == DW_TAG_template_value_parameter && uval64_valid) { | |||
2059 | llvm::APInt apint(clang_type.GetBitSize(nullptr), uval64, is_signed); | |||
2060 | template_param_infos.args.push_back( | |||
2061 | clang::TemplateArgument(*ast, llvm::APSInt(apint, !is_signed), | |||
2062 | ClangUtil::GetQualType(clang_type))); | |||
2063 | } else { | |||
2064 | template_param_infos.args.push_back( | |||
2065 | clang::TemplateArgument(ClangUtil::GetQualType(clang_type))); | |||
2066 | } | |||
2067 | } else { | |||
2068 | auto *tplt_type = m_ast.CreateTemplateTemplateParmDecl(template_name); | |||
2069 | template_param_infos.names.push_back(name); | |||
2070 | template_param_infos.args.push_back( | |||
2071 | clang::TemplateArgument(clang::TemplateName(tplt_type))); | |||
2072 | } | |||
2073 | } | |||
2074 | } | |||
2075 | return true; | |||
2076 | ||||
2077 | default: | |||
2078 | break; | |||
2079 | } | |||
2080 | return false; | |||
2081 | } | |||
2082 | ||||
2083 | bool DWARFASTParserClang::ParseTemplateParameterInfos( | |||
2084 | const DWARFDIE &parent_die, | |||
2085 | ClangASTContext::TemplateParameterInfos &template_param_infos) { | |||
2086 | ||||
2087 | if (!parent_die) | |||
2088 | return false; | |||
2089 | ||||
2090 | for (DWARFDIE die = parent_die.GetFirstChild(); die.IsValid(); | |||
2091 | die = die.GetSibling()) { | |||
2092 | const dw_tag_t tag = die.Tag(); | |||
2093 | ||||
2094 | switch (tag) { | |||
2095 | case DW_TAG_template_type_parameter: | |||
2096 | case DW_TAG_template_value_parameter: | |||
2097 | case DW_TAG_GNU_template_parameter_pack: | |||
2098 | case DW_TAG_GNU_template_template_param: | |||
2099 | ParseTemplateDIE(die, template_param_infos); | |||
2100 | break; | |||
2101 | ||||
2102 | default: | |||
2103 | break; | |||
2104 | } | |||
2105 | } | |||
2106 | if (template_param_infos.args.empty()) | |||
2107 | return false; | |||
2108 | return template_param_infos.args.size() == template_param_infos.names.size(); | |||
2109 | } | |||
2110 | ||||
2111 | // Checks whether m1 is an overload of m2 (as opposed to an override). This is | |||
2112 | // called by addOverridesForMethod to distinguish overrides (which share a | |||
2113 | // vtable entry) from overloads (which require distinct entries). | |||
2114 | static bool isOverload(clang::CXXMethodDecl *m1, clang::CXXMethodDecl *m2) { | |||
2115 | // FIXME: This should detect covariant return types, but currently doesn't. | |||
2116 | lldbassert(&m1->getASTContext() == &m2->getASTContext() &&lldb_private::lldb_assert(&m1->getASTContext() == & m2->getASTContext() && "Methods should have the same AST context" , "&m1->getASTContext() == &m2->getASTContext() && \"Methods should have the same AST context\"" , __FUNCTION__, "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 2117) | |||
2117 | "Methods should have the same AST context")lldb_private::lldb_assert(&m1->getASTContext() == & m2->getASTContext() && "Methods should have the same AST context" , "&m1->getASTContext() == &m2->getASTContext() && \"Methods should have the same AST context\"" , __FUNCTION__, "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 2117); | |||
2118 | clang::ASTContext &context = m1->getASTContext(); | |||
2119 | ||||
2120 | const auto *m1Type = | |||
2121 | llvm::cast<clang::FunctionProtoType>( | |||
2122 | context.getCanonicalType(m1->getType())); | |||
2123 | ||||
2124 | const auto *m2Type = | |||
2125 | llvm::cast<clang::FunctionProtoType>( | |||
2126 | context.getCanonicalType(m2->getType())); | |||
2127 | ||||
2128 | auto compareArgTypes = | |||
2129 | [&context](const clang::QualType &m1p, const clang::QualType &m2p) { | |||
2130 | return context.hasSameType(m1p.getUnqualifiedType(), | |||
2131 | m2p.getUnqualifiedType()); | |||
2132 | }; | |||
2133 | ||||
2134 | // FIXME: In C++14 and later, we can just pass m2Type->param_type_end() | |||
2135 | // as a fourth parameter to std::equal(). | |||
2136 | return (m1->getNumParams() != m2->getNumParams()) || | |||
2137 | !std::equal(m1Type->param_type_begin(), m1Type->param_type_end(), | |||
2138 | m2Type->param_type_begin(), compareArgTypes); | |||
2139 | } | |||
2140 | ||||
2141 | // If decl is a virtual method, walk the base classes looking for methods that | |||
2142 | // decl overrides. This table of overridden methods is used by IRGen to | |||
2143 | // determine the vtable layout for decl's parent class. | |||
2144 | static void addOverridesForMethod(clang::CXXMethodDecl *decl) { | |||
2145 | if (!decl->isVirtual()) | |||
2146 | return; | |||
2147 | ||||
2148 | clang::CXXBasePaths paths; | |||
2149 | ||||
2150 | auto find_overridden_methods = | |||
2151 | [decl](const clang::CXXBaseSpecifier *specifier, clang::CXXBasePath &path) { | |||
2152 | if (auto *base_record = | |||
2153 | llvm::dyn_cast<clang::CXXRecordDecl>( | |||
2154 | specifier->getType()->getAs<clang::RecordType>()->getDecl())) { | |||
2155 | ||||
2156 | clang::DeclarationName name = decl->getDeclName(); | |||
2157 | ||||
2158 | // If this is a destructor, check whether the base class destructor is | |||
2159 | // virtual. | |||
2160 | if (name.getNameKind() == clang::DeclarationName::CXXDestructorName) | |||
2161 | if (auto *baseDtorDecl = base_record->getDestructor()) { | |||
2162 | if (baseDtorDecl->isVirtual()) { | |||
2163 | path.Decls = baseDtorDecl; | |||
2164 | return true; | |||
2165 | } else | |||
2166 | return false; | |||
2167 | } | |||
2168 | ||||
2169 | // Otherwise, search for name in the base class. | |||
2170 | for (path.Decls = base_record->lookup(name); !path.Decls.empty(); | |||
2171 | path.Decls = path.Decls.slice(1)) { | |||
2172 | if (auto *method_decl = | |||
2173 | llvm::dyn_cast<clang::CXXMethodDecl>(path.Decls.front())) | |||
2174 | if (method_decl->isVirtual() && !isOverload(decl, method_decl)) { | |||
2175 | path.Decls = method_decl; | |||
2176 | return true; | |||
2177 | } | |||
2178 | } | |||
2179 | } | |||
2180 | ||||
2181 | return false; | |||
2182 | }; | |||
2183 | ||||
2184 | if (decl->getParent()->lookupInBases(find_overridden_methods, paths)) { | |||
2185 | for (auto *overridden_decl : paths.found_decls()) | |||
2186 | decl->addOverriddenMethod( | |||
2187 | llvm::cast<clang::CXXMethodDecl>(overridden_decl)); | |||
2188 | } | |||
2189 | } | |||
2190 | ||||
2191 | // If clang_type is a CXXRecordDecl, builds the method override list for each | |||
2192 | // of its virtual methods. | |||
2193 | static void addMethodOverrides(ClangASTContext &ast, CompilerType &clang_type) { | |||
2194 | if (auto *record = | |||
2195 | ast.GetAsCXXRecordDecl(clang_type.GetOpaqueQualType())) | |||
2196 | for (auto *method : record->methods()) | |||
2197 | addOverridesForMethod(method); | |||
2198 | } | |||
2199 | ||||
2200 | bool DWARFASTParserClang::CompleteTypeFromDWARF(const DWARFDIE &die, | |||
2201 | lldb_private::Type *type, | |||
2202 | CompilerType &clang_type) { | |||
2203 | SymbolFileDWARF *dwarf = die.GetDWARF(); | |||
2204 | ||||
2205 | std::lock_guard<std::recursive_mutex> guard( | |||
2206 | dwarf->GetObjectFile()->GetModule()->GetMutex()); | |||
2207 | ||||
2208 | // Disable external storage for this type so we don't get anymore | |||
2209 | // clang::ExternalASTSource queries for this type. | |||
2210 | m_ast.SetHasExternalStorage(clang_type.GetOpaqueQualType(), false); | |||
2211 | ||||
2212 | if (!die) | |||
2213 | return false; | |||
2214 | ||||
2215 | #if defined LLDB_CONFIGURATION_DEBUG | |||
2216 | //---------------------------------------------------------------------- | |||
2217 | // For debugging purposes, the LLDB_DWARF_DONT_COMPLETE_TYPENAMES environment | |||
2218 | // variable can be set with one or more typenames separated by ';' | |||
2219 | // characters. This will cause this function to not complete any types whose | |||
2220 | // names match. | |||
2221 | // | |||
2222 | // Examples of setting this environment variable: | |||
2223 | // | |||
2224 | // LLDB_DWARF_DONT_COMPLETE_TYPENAMES=Foo | |||
2225 | // LLDB_DWARF_DONT_COMPLETE_TYPENAMES=Foo;Bar;Baz | |||
2226 | //---------------------------------------------------------------------- | |||
2227 | const char *dont_complete_typenames_cstr = | |||
2228 | getenv("LLDB_DWARF_DONT_COMPLETE_TYPENAMES"); | |||
2229 | if (dont_complete_typenames_cstr && dont_complete_typenames_cstr[0]) { | |||
2230 | const char *die_name = die.GetName(); | |||
2231 | if (die_name && die_name[0]) { | |||
2232 | const char *match = strstr(dont_complete_typenames_cstr, die_name); | |||
2233 | if (match) { | |||
2234 | size_t die_name_length = strlen(die_name); | |||
2235 | while (match) { | |||
2236 | const char separator_char = ';'; | |||
2237 | const char next_char = match[die_name_length]; | |||
2238 | if (next_char == '\0' || next_char == separator_char) { | |||
2239 | if (match == dont_complete_typenames_cstr || | |||
2240 | match[-1] == separator_char) | |||
2241 | return false; | |||
2242 | } | |||
2243 | match = strstr(match + 1, die_name); | |||
2244 | } | |||
2245 | } | |||
2246 | } | |||
2247 | } | |||
2248 | #endif | |||
2249 | ||||
2250 | const dw_tag_t tag = die.Tag(); | |||
2251 | ||||
2252 | Log *log = | |||
2253 | nullptr; // (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO|DWARF_LOG_TYPE_COMPLETION)); | |||
2254 | if (log) | |||
2255 | dwarf->GetObjectFile()->GetModule()->LogMessageVerboseBacktrace( | |||
2256 | log, "0x%8.8" PRIx64"l" "x" ": %s '%s' resolving forward declaration...", | |||
2257 | die.GetID(), die.GetTagAsCString(), type->GetName().AsCString()); | |||
2258 | assert(clang_type)(static_cast <bool> (clang_type) ? void (0) : __assert_fail ("clang_type", "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 2258, __extension__ __PRETTY_FUNCTION__)); | |||
2259 | DWARFAttributes attributes; | |||
2260 | switch (tag) { | |||
2261 | case DW_TAG_structure_type: | |||
2262 | case DW_TAG_union_type: | |||
2263 | case DW_TAG_class_type: { | |||
2264 | ClangASTImporter::LayoutInfo layout_info; | |||
2265 | ||||
2266 | { | |||
2267 | if (die.HasChildren()) { | |||
2268 | LanguageType class_language = eLanguageTypeUnknown; | |||
2269 | if (ClangASTContext::IsObjCObjectOrInterfaceType(clang_type)) { | |||
2270 | class_language = eLanguageTypeObjC; | |||
2271 | // For objective C we don't start the definition when the class is | |||
2272 | // created. | |||
2273 | ClangASTContext::StartTagDeclarationDefinition(clang_type); | |||
2274 | } | |||
2275 | ||||
2276 | int tag_decl_kind = -1; | |||
2277 | AccessType default_accessibility = eAccessNone; | |||
2278 | if (tag == DW_TAG_structure_type) { | |||
2279 | tag_decl_kind = clang::TTK_Struct; | |||
2280 | default_accessibility = eAccessPublic; | |||
2281 | } else if (tag == DW_TAG_union_type) { | |||
2282 | tag_decl_kind = clang::TTK_Union; | |||
2283 | default_accessibility = eAccessPublic; | |||
2284 | } else if (tag == DW_TAG_class_type) { | |||
2285 | tag_decl_kind = clang::TTK_Class; | |||
2286 | default_accessibility = eAccessPrivate; | |||
2287 | } | |||
2288 | ||||
2289 | SymbolContext sc(die.GetLLDBCompileUnit()); | |||
2290 | std::vector<clang::CXXBaseSpecifier *> base_classes; | |||
2291 | std::vector<int> member_accessibilities; | |||
2292 | bool is_a_class = false; | |||
2293 | // Parse members and base classes first | |||
2294 | DWARFDIECollection member_function_dies; | |||
2295 | ||||
2296 | DelayedPropertyList delayed_properties; | |||
2297 | ParseChildMembers(sc, die, clang_type, class_language, base_classes, | |||
2298 | member_accessibilities, member_function_dies, | |||
2299 | delayed_properties, default_accessibility, is_a_class, | |||
2300 | layout_info); | |||
2301 | ||||
2302 | // Now parse any methods if there were any... | |||
2303 | size_t num_functions = member_function_dies.Size(); | |||
2304 | if (num_functions > 0) { | |||
2305 | for (size_t i = 0; i < num_functions; ++i) { | |||
2306 | dwarf->ResolveType(member_function_dies.GetDIEAtIndex(i)); | |||
2307 | } | |||
2308 | } | |||
2309 | ||||
2310 | if (class_language == eLanguageTypeObjC) { | |||
2311 | ConstString class_name(clang_type.GetTypeName()); | |||
2312 | if (class_name) { | |||
2313 | DIEArray method_die_offsets; | |||
2314 | dwarf->GetObjCMethodDIEOffsets(class_name, method_die_offsets); | |||
2315 | ||||
2316 | if (!method_die_offsets.empty()) { | |||
2317 | DWARFDebugInfo *debug_info = dwarf->DebugInfo(); | |||
2318 | ||||
2319 | const size_t num_matches = method_die_offsets.size(); | |||
2320 | for (size_t i = 0; i < num_matches; ++i) { | |||
2321 | const DIERef &die_ref = method_die_offsets[i]; | |||
2322 | DWARFDIE method_die = debug_info->GetDIE(die_ref); | |||
2323 | ||||
2324 | if (method_die) | |||
2325 | method_die.ResolveType(); | |||
2326 | } | |||
2327 | } | |||
2328 | ||||
2329 | for (DelayedPropertyList::iterator pi = delayed_properties.begin(), | |||
2330 | pe = delayed_properties.end(); | |||
2331 | pi != pe; ++pi) | |||
2332 | pi->Finalize(); | |||
2333 | } | |||
2334 | } | |||
2335 | ||||
2336 | // If we have a DW_TAG_structure_type instead of a DW_TAG_class_type we | |||
2337 | // need to tell the clang type it is actually a class. | |||
2338 | if (class_language != eLanguageTypeObjC) { | |||
2339 | if (is_a_class && tag_decl_kind != clang::TTK_Class) | |||
2340 | m_ast.SetTagTypeKind(ClangUtil::GetQualType(clang_type), | |||
2341 | clang::TTK_Class); | |||
2342 | } | |||
2343 | ||||
2344 | // Since DW_TAG_structure_type gets used for both classes and | |||
2345 | // structures, we may need to set any DW_TAG_member fields to have a | |||
2346 | // "private" access if none was specified. When we parsed the child | |||
2347 | // members we tracked that actual accessibility value for each | |||
2348 | // DW_TAG_member in the "member_accessibilities" array. If the value | |||
2349 | // for the member is zero, then it was set to the | |||
2350 | // "default_accessibility" which for structs was "public". Below we | |||
2351 | // correct this by setting any fields to "private" that weren't | |||
2352 | // correctly set. | |||
2353 | if (is_a_class && !member_accessibilities.empty()) { | |||
2354 | // This is a class and all members that didn't have their access | |||
2355 | // specified are private. | |||
2356 | m_ast.SetDefaultAccessForRecordFields( | |||
2357 | m_ast.GetAsRecordDecl(clang_type), eAccessPrivate, | |||
2358 | &member_accessibilities.front(), member_accessibilities.size()); | |||
2359 | } | |||
2360 | ||||
2361 | if (!base_classes.empty()) { | |||
2362 | // Make sure all base classes refer to complete types and not forward | |||
2363 | // declarations. If we don't do this, clang will crash with an | |||
2364 | // assertion in the call to clang_type.SetBaseClassesForClassType() | |||
2365 | for (auto &base_class : base_classes) { | |||
2366 | clang::TypeSourceInfo *type_source_info = | |||
2367 | base_class->getTypeSourceInfo(); | |||
2368 | if (type_source_info) { | |||
2369 | CompilerType base_class_type( | |||
2370 | &m_ast, type_source_info->getType().getAsOpaquePtr()); | |||
2371 | if (base_class_type.GetCompleteType() == false) { | |||
2372 | auto module = dwarf->GetObjectFile()->GetModule(); | |||
2373 | module->ReportError(":: Class '%s' has a base class '%s' which " | |||
2374 | "does not have a complete definition.", | |||
2375 | die.GetName(), | |||
2376 | base_class_type.GetTypeName().GetCString()); | |||
2377 | if (die.GetCU()->GetProducer() == eProducerClang) | |||
2378 | module->ReportError(":: Try compiling the source file with " | |||
2379 | "-fstandalone-debug."); | |||
2380 | ||||
2381 | // We have no choice other than to pretend that the base class | |||
2382 | // is complete. If we don't do this, clang will crash when we | |||
2383 | // call setBases() inside of | |||
2384 | // "clang_type.SetBaseClassesForClassType()" below. Since we | |||
2385 | // provide layout assistance, all ivars in this class and other | |||
2386 | // classes will be fine, this is the best we can do short of | |||
2387 | // crashing. | |||
2388 | if (ClangASTContext::StartTagDeclarationDefinition( | |||
2389 | base_class_type)) { | |||
2390 | ClangASTContext::CompleteTagDeclarationDefinition( | |||
2391 | base_class_type); | |||
2392 | } | |||
2393 | } | |||
2394 | } | |||
2395 | } | |||
2396 | m_ast.SetBaseClassesForClassType(clang_type.GetOpaqueQualType(), | |||
2397 | &base_classes.front(), | |||
2398 | base_classes.size()); | |||
2399 | ||||
2400 | // Clang will copy each CXXBaseSpecifier in "base_classes" so we have | |||
2401 | // to free them all. | |||
2402 | ClangASTContext::DeleteBaseClassSpecifiers(&base_classes.front(), | |||
2403 | base_classes.size()); | |||
2404 | } | |||
2405 | } | |||
2406 | } | |||
2407 | ||||
2408 | addMethodOverrides(m_ast, clang_type); | |||
2409 | ClangASTContext::BuildIndirectFields(clang_type); | |||
2410 | ClangASTContext::CompleteTagDeclarationDefinition(clang_type); | |||
2411 | ||||
2412 | if (!layout_info.field_offsets.empty() || | |||
2413 | !layout_info.base_offsets.empty() || | |||
2414 | !layout_info.vbase_offsets.empty()) { | |||
2415 | if (type) | |||
2416 | layout_info.bit_size = type->GetByteSize() * 8; | |||
2417 | if (layout_info.bit_size == 0) | |||
2418 | layout_info.bit_size = | |||
2419 | die.GetAttributeValueAsUnsigned(DW_AT_byte_size, 0) * 8; | |||
2420 | ||||
2421 | clang::CXXRecordDecl *record_decl = | |||
2422 | m_ast.GetAsCXXRecordDecl(clang_type.GetOpaqueQualType()); | |||
2423 | if (record_decl) { | |||
2424 | if (log) { | |||
2425 | ModuleSP module_sp = dwarf->GetObjectFile()->GetModule(); | |||
2426 | ||||
2427 | if (module_sp) { | |||
2428 | module_sp->LogMessage( | |||
2429 | log, | |||
2430 | "ClangASTContext::CompleteTypeFromDWARF (clang_type = %p) " | |||
2431 | "caching layout info for record_decl = %p, bit_size = %" PRIu64"l" "u" | |||
2432 | ", alignment = %" PRIu64"l" "u" | |||
2433 | ", field_offsets[%u], base_offsets[%u], vbase_offsets[%u])", | |||
2434 | static_cast<void *>(clang_type.GetOpaqueQualType()), | |||
2435 | static_cast<void *>(record_decl), layout_info.bit_size, | |||
2436 | layout_info.alignment, | |||
2437 | static_cast<uint32_t>(layout_info.field_offsets.size()), | |||
2438 | static_cast<uint32_t>(layout_info.base_offsets.size()), | |||
2439 | static_cast<uint32_t>(layout_info.vbase_offsets.size())); | |||
2440 | ||||
2441 | uint32_t idx; | |||
2442 | { | |||
2443 | llvm::DenseMap<const clang::FieldDecl *, uint64_t>::const_iterator | |||
2444 | pos, | |||
2445 | end = layout_info.field_offsets.end(); | |||
2446 | for (idx = 0, pos = layout_info.field_offsets.begin(); pos != end; | |||
2447 | ++pos, ++idx) { | |||
2448 | module_sp->LogMessage( | |||
2449 | log, "ClangASTContext::CompleteTypeFromDWARF (clang_type = " | |||
2450 | "%p) field[%u] = { bit_offset=%u, name='%s' }", | |||
2451 | static_cast<void *>(clang_type.GetOpaqueQualType()), idx, | |||
2452 | static_cast<uint32_t>(pos->second), | |||
2453 | pos->first->getNameAsString().c_str()); | |||
2454 | } | |||
2455 | } | |||
2456 | ||||
2457 | { | |||
2458 | llvm::DenseMap<const clang::CXXRecordDecl *, | |||
2459 | clang::CharUnits>::const_iterator base_pos, | |||
2460 | base_end = layout_info.base_offsets.end(); | |||
2461 | for (idx = 0, base_pos = layout_info.base_offsets.begin(); | |||
2462 | base_pos != base_end; ++base_pos, ++idx) { | |||
2463 | module_sp->LogMessage( | |||
2464 | log, "ClangASTContext::CompleteTypeFromDWARF (clang_type = " | |||
2465 | "%p) base[%u] = { byte_offset=%u, name='%s' }", | |||
2466 | clang_type.GetOpaqueQualType(), idx, | |||
2467 | (uint32_t)base_pos->second.getQuantity(), | |||
2468 | base_pos->first->getNameAsString().c_str()); | |||
2469 | } | |||
2470 | } | |||
2471 | { | |||
2472 | llvm::DenseMap<const clang::CXXRecordDecl *, | |||
2473 | clang::CharUnits>::const_iterator vbase_pos, | |||
2474 | vbase_end = layout_info.vbase_offsets.end(); | |||
2475 | for (idx = 0, vbase_pos = layout_info.vbase_offsets.begin(); | |||
2476 | vbase_pos != vbase_end; ++vbase_pos, ++idx) { | |||
2477 | module_sp->LogMessage( | |||
2478 | log, "ClangASTContext::CompleteTypeFromDWARF (clang_type = " | |||
2479 | "%p) vbase[%u] = { byte_offset=%u, name='%s' }", | |||
2480 | static_cast<void *>(clang_type.GetOpaqueQualType()), idx, | |||
2481 | static_cast<uint32_t>(vbase_pos->second.getQuantity()), | |||
2482 | vbase_pos->first->getNameAsString().c_str()); | |||
2483 | } | |||
2484 | } | |||
2485 | } | |||
2486 | } | |||
2487 | GetClangASTImporter().InsertRecordDecl(record_decl, layout_info); | |||
2488 | } | |||
2489 | } | |||
2490 | } | |||
2491 | ||||
2492 | return (bool)clang_type; | |||
2493 | ||||
2494 | case DW_TAG_enumeration_type: | |||
2495 | if (ClangASTContext::StartTagDeclarationDefinition(clang_type)) { | |||
2496 | if (die.HasChildren()) { | |||
2497 | SymbolContext sc(die.GetLLDBCompileUnit()); | |||
2498 | bool is_signed = false; | |||
2499 | clang_type.IsIntegerType(is_signed); | |||
2500 | ParseChildEnumerators(sc, clang_type, is_signed, type->GetByteSize(), | |||
2501 | die); | |||
2502 | } | |||
2503 | ClangASTContext::CompleteTagDeclarationDefinition(clang_type); | |||
2504 | } | |||
2505 | return (bool)clang_type; | |||
2506 | ||||
2507 | default: | |||
2508 | assert(false && "not a forward clang type decl!")(static_cast <bool> (false && "not a forward clang type decl!" ) ? void (0) : __assert_fail ("false && \"not a forward clang type decl!\"" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 2508, __extension__ __PRETTY_FUNCTION__)); | |||
2509 | break; | |||
2510 | } | |||
2511 | ||||
2512 | return false; | |||
2513 | } | |||
2514 | ||||
2515 | std::vector<DWARFDIE> DWARFASTParserClang::GetDIEForDeclContext( | |||
2516 | lldb_private::CompilerDeclContext decl_context) { | |||
2517 | std::vector<DWARFDIE> result; | |||
2518 | for (auto it = m_decl_ctx_to_die.find( | |||
2519 | (clang::DeclContext *)decl_context.GetOpaqueDeclContext()); | |||
2520 | it != m_decl_ctx_to_die.end(); it++) | |||
2521 | result.push_back(it->second); | |||
2522 | return result; | |||
2523 | } | |||
2524 | ||||
2525 | CompilerDecl DWARFASTParserClang::GetDeclForUIDFromDWARF(const DWARFDIE &die) { | |||
2526 | clang::Decl *clang_decl = GetClangDeclForDIE(die); | |||
2527 | if (clang_decl != nullptr) | |||
2528 | return CompilerDecl(&m_ast, clang_decl); | |||
2529 | return CompilerDecl(); | |||
2530 | } | |||
2531 | ||||
2532 | CompilerDeclContext | |||
2533 | DWARFASTParserClang::GetDeclContextForUIDFromDWARF(const DWARFDIE &die) { | |||
2534 | clang::DeclContext *clang_decl_ctx = GetClangDeclContextForDIE(die); | |||
2535 | if (clang_decl_ctx) | |||
2536 | return CompilerDeclContext(&m_ast, clang_decl_ctx); | |||
2537 | return CompilerDeclContext(); | |||
2538 | } | |||
2539 | ||||
2540 | CompilerDeclContext | |||
2541 | DWARFASTParserClang::GetDeclContextContainingUIDFromDWARF(const DWARFDIE &die) { | |||
2542 | clang::DeclContext *clang_decl_ctx = | |||
2543 | GetClangDeclContextContainingDIE(die, nullptr); | |||
2544 | if (clang_decl_ctx) | |||
2545 | return CompilerDeclContext(&m_ast, clang_decl_ctx); | |||
2546 | return CompilerDeclContext(); | |||
2547 | } | |||
2548 | ||||
2549 | size_t DWARFASTParserClang::ParseChildEnumerators( | |||
2550 | const SymbolContext &sc, lldb_private::CompilerType &clang_type, | |||
2551 | bool is_signed, uint32_t enumerator_byte_size, const DWARFDIE &parent_die) { | |||
2552 | if (!parent_die) | |||
2553 | return 0; | |||
2554 | ||||
2555 | size_t enumerators_added = 0; | |||
2556 | ||||
2557 | for (DWARFDIE die = parent_die.GetFirstChild(); die.IsValid(); | |||
2558 | die = die.GetSibling()) { | |||
2559 | const dw_tag_t tag = die.Tag(); | |||
2560 | if (tag == DW_TAG_enumerator) { | |||
2561 | DWARFAttributes attributes; | |||
2562 | const size_t num_child_attributes = die.GetAttributes(attributes); | |||
2563 | if (num_child_attributes > 0) { | |||
2564 | const char *name = NULL__null; | |||
2565 | bool got_value = false; | |||
2566 | int64_t enum_value = 0; | |||
2567 | Declaration decl; | |||
2568 | ||||
2569 | uint32_t i; | |||
2570 | for (i = 0; i < num_child_attributes; ++i) { | |||
2571 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||
2572 | DWARFFormValue form_value; | |||
2573 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { | |||
2574 | switch (attr) { | |||
2575 | case DW_AT_const_value: | |||
2576 | got_value = true; | |||
2577 | if (is_signed) | |||
2578 | enum_value = form_value.Signed(); | |||
2579 | else | |||
2580 | enum_value = form_value.Unsigned(); | |||
2581 | break; | |||
2582 | ||||
2583 | case DW_AT_name: | |||
2584 | name = form_value.AsCString(); | |||
2585 | break; | |||
2586 | ||||
2587 | case DW_AT_description: | |||
2588 | default: | |||
2589 | case DW_AT_decl_file: | |||
2590 | decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex( | |||
2591 | form_value.Unsigned())); | |||
2592 | break; | |||
2593 | case DW_AT_decl_line: | |||
2594 | decl.SetLine(form_value.Unsigned()); | |||
2595 | break; | |||
2596 | case DW_AT_decl_column: | |||
2597 | decl.SetColumn(form_value.Unsigned()); | |||
2598 | break; | |||
2599 | case DW_AT_sibling: | |||
2600 | break; | |||
2601 | } | |||
2602 | } | |||
2603 | } | |||
2604 | ||||
2605 | if (name && name[0] && got_value) { | |||
2606 | m_ast.AddEnumerationValueToEnumerationType( | |||
2607 | clang_type.GetOpaqueQualType(), | |||
2608 | m_ast.GetEnumerationIntegerType(clang_type.GetOpaqueQualType()), | |||
2609 | decl, name, enum_value, enumerator_byte_size * 8); | |||
2610 | ++enumerators_added; | |||
2611 | } | |||
2612 | } | |||
2613 | } | |||
2614 | } | |||
2615 | return enumerators_added; | |||
2616 | } | |||
2617 | ||||
2618 | #if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE1) | |||
2619 | ||||
2620 | class DIEStack { | |||
2621 | public: | |||
2622 | void Push(const DWARFDIE &die) { m_dies.push_back(die); } | |||
2623 | ||||
2624 | void LogDIEs(Log *log) { | |||
2625 | StreamString log_strm; | |||
2626 | const size_t n = m_dies.size(); | |||
2627 | log_strm.Printf("DIEStack[%" PRIu64"l" "u" "]:\n", (uint64_t)n); | |||
2628 | for (size_t i = 0; i < n; i++) { | |||
2629 | std::string qualified_name; | |||
2630 | const DWARFDIE &die = m_dies[i]; | |||
2631 | die.GetQualifiedName(qualified_name); | |||
2632 | log_strm.Printf("[%" PRIu64"l" "u" "] 0x%8.8x: %s name='%s'\n", (uint64_t)i, | |||
2633 | die.GetOffset(), die.GetTagAsCString(), | |||
2634 | qualified_name.c_str()); | |||
2635 | } | |||
2636 | log->PutCString(log_strm.GetData()); | |||
2637 | } | |||
2638 | void Pop() { m_dies.pop_back(); } | |||
2639 | ||||
2640 | class ScopedPopper { | |||
2641 | public: | |||
2642 | ScopedPopper(DIEStack &die_stack) | |||
2643 | : m_die_stack(die_stack), m_valid(false) {} | |||
2644 | ||||
2645 | void Push(const DWARFDIE &die) { | |||
2646 | m_valid = true; | |||
2647 | m_die_stack.Push(die); | |||
2648 | } | |||
2649 | ||||
2650 | ~ScopedPopper() { | |||
2651 | if (m_valid) | |||
2652 | m_die_stack.Pop(); | |||
2653 | } | |||
2654 | ||||
2655 | protected: | |||
2656 | DIEStack &m_die_stack; | |||
2657 | bool m_valid; | |||
2658 | }; | |||
2659 | ||||
2660 | protected: | |||
2661 | typedef std::vector<DWARFDIE> Stack; | |||
2662 | Stack m_dies; | |||
2663 | }; | |||
2664 | #endif | |||
2665 | ||||
2666 | Function *DWARFASTParserClang::ParseFunctionFromDWARF(const SymbolContext &sc, | |||
2667 | const DWARFDIE &die) { | |||
2668 | DWARFRangeList func_ranges; | |||
2669 | const char *name = NULL__null; | |||
2670 | const char *mangled = NULL__null; | |||
2671 | int decl_file = 0; | |||
2672 | int decl_line = 0; | |||
2673 | int decl_column = 0; | |||
2674 | int call_file = 0; | |||
2675 | int call_line = 0; | |||
2676 | int call_column = 0; | |||
2677 | DWARFExpression frame_base(die.GetCU()); | |||
2678 | ||||
2679 | const dw_tag_t tag = die.Tag(); | |||
2680 | ||||
2681 | if (tag != DW_TAG_subprogram) | |||
2682 | return NULL__null; | |||
2683 | ||||
2684 | if (die.GetDIENamesAndRanges(name, mangled, func_ranges, decl_file, decl_line, | |||
2685 | decl_column, call_file, call_line, call_column, | |||
2686 | &frame_base)) { | |||
2687 | ||||
2688 | // Union of all ranges in the function DIE (if the function is | |||
2689 | // discontiguous) | |||
2690 | AddressRange func_range; | |||
2691 | lldb::addr_t lowest_func_addr = func_ranges.GetMinRangeBase(0); | |||
2692 | lldb::addr_t highest_func_addr = func_ranges.GetMaxRangeEnd(0); | |||
2693 | if (lowest_func_addr != LLDB_INVALID_ADDRESS(18446744073709551615UL) && | |||
2694 | lowest_func_addr <= highest_func_addr) { | |||
2695 | ModuleSP module_sp(die.GetModule()); | |||
2696 | func_range.GetBaseAddress().ResolveAddressUsingFileSections( | |||
2697 | lowest_func_addr, module_sp->GetSectionList()); | |||
2698 | if (func_range.GetBaseAddress().IsValid()) | |||
2699 | func_range.SetByteSize(highest_func_addr - lowest_func_addr); | |||
2700 | } | |||
2701 | ||||
2702 | if (func_range.GetBaseAddress().IsValid()) { | |||
2703 | Mangled func_name; | |||
2704 | if (mangled) | |||
2705 | func_name.SetValue(ConstString(mangled), true); | |||
2706 | else if ((die.GetParent().Tag() == DW_TAG_compile_unit || | |||
2707 | die.GetParent().Tag() == DW_TAG_partial_unit) && | |||
2708 | Language::LanguageIsCPlusPlus(die.GetLanguage()) && name && | |||
2709 | strcmp(name, "main") != 0) { | |||
2710 | // If the mangled name is not present in the DWARF, generate the | |||
2711 | // demangled name using the decl context. We skip if the function is | |||
2712 | // "main" as its name is never mangled. | |||
2713 | bool is_static = false; | |||
2714 | bool is_variadic = false; | |||
2715 | bool has_template_params = false; | |||
2716 | unsigned type_quals = 0; | |||
2717 | std::vector<CompilerType> param_types; | |||
2718 | std::vector<clang::ParmVarDecl *> param_decls; | |||
2719 | DWARFDeclContext decl_ctx; | |||
2720 | StreamString sstr; | |||
2721 | ||||
2722 | die.GetDWARFDeclContext(decl_ctx); | |||
2723 | sstr << decl_ctx.GetQualifiedName(); | |||
2724 | ||||
2725 | clang::DeclContext *containing_decl_ctx = | |||
2726 | GetClangDeclContextContainingDIE(die, nullptr); | |||
2727 | ParseChildParameters(sc, containing_decl_ctx, die, true, is_static, | |||
2728 | is_variadic, has_template_params, param_types, | |||
2729 | param_decls, type_quals); | |||
2730 | sstr << "("; | |||
2731 | for (size_t i = 0; i < param_types.size(); i++) { | |||
2732 | if (i > 0) | |||
2733 | sstr << ", "; | |||
2734 | sstr << param_types[i].GetTypeName(); | |||
2735 | } | |||
2736 | if (is_variadic) | |||
2737 | sstr << ", ..."; | |||
2738 | sstr << ")"; | |||
2739 | if (type_quals & clang::Qualifiers::Const) | |||
2740 | sstr << " const"; | |||
2741 | ||||
2742 | func_name.SetValue(ConstString(sstr.GetString()), false); | |||
2743 | } else | |||
2744 | func_name.SetValue(ConstString(name), false); | |||
2745 | ||||
2746 | FunctionSP func_sp; | |||
2747 | std::unique_ptr<Declaration> decl_ap; | |||
2748 | if (decl_file != 0 || decl_line != 0 || decl_column != 0) | |||
2749 | decl_ap.reset(new Declaration( | |||
2750 | sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(decl_file), | |||
2751 | decl_line, decl_column)); | |||
2752 | ||||
2753 | SymbolFileDWARF *dwarf = die.GetDWARF(); | |||
2754 | // Supply the type _only_ if it has already been parsed | |||
2755 | Type *func_type = dwarf->GetDIEToType().lookup(die.GetDIE()); | |||
2756 | ||||
2757 | assert(func_type == NULL || func_type != DIE_IS_BEING_PARSED)(static_cast <bool> (func_type == __null || func_type != ((lldb_private::Type *)1)) ? void (0) : __assert_fail ("func_type == NULL || func_type != DIE_IS_BEING_PARSED" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 2757, __extension__ __PRETTY_FUNCTION__)); | |||
2758 | ||||
2759 | if (dwarf->FixupAddress(func_range.GetBaseAddress())) { | |||
2760 | const user_id_t func_user_id = die.GetID(); | |||
2761 | func_sp.reset(new Function(sc.comp_unit, | |||
2762 | func_user_id, // UserID is the DIE offset | |||
2763 | func_user_id, func_name, func_type, | |||
2764 | func_range)); // first address range | |||
2765 | ||||
2766 | if (func_sp.get() != NULL__null) { | |||
2767 | if (frame_base.IsValid()) | |||
2768 | func_sp->GetFrameBaseExpression() = frame_base; | |||
2769 | sc.comp_unit->AddFunction(func_sp); | |||
2770 | return func_sp.get(); | |||
2771 | } | |||
2772 | } | |||
2773 | } | |||
2774 | } | |||
2775 | return NULL__null; | |||
2776 | } | |||
2777 | ||||
2778 | bool DWARFASTParserClang::ParseChildMembers( | |||
2779 | const SymbolContext &sc, const DWARFDIE &parent_die, | |||
2780 | CompilerType &class_clang_type, const LanguageType class_language, | |||
2781 | std::vector<clang::CXXBaseSpecifier *> &base_classes, | |||
2782 | std::vector<int> &member_accessibilities, | |||
2783 | DWARFDIECollection &member_function_dies, | |||
2784 | DelayedPropertyList &delayed_properties, AccessType &default_accessibility, | |||
2785 | bool &is_a_class, ClangASTImporter::LayoutInfo &layout_info) { | |||
2786 | if (!parent_die) | |||
2787 | return 0; | |||
2788 | ||||
2789 | // Get the parent byte size so we can verify any members will fit | |||
2790 | const uint64_t parent_byte_size = | |||
2791 | parent_die.GetAttributeValueAsUnsigned(DW_AT_byte_size, UINT64_MAX(18446744073709551615UL)); | |||
2792 | const uint64_t parent_bit_size = | |||
2793 | parent_byte_size == UINT64_MAX(18446744073709551615UL) ? UINT64_MAX(18446744073709551615UL) : parent_byte_size * 8; | |||
2794 | ||||
2795 | uint32_t member_idx = 0; | |||
2796 | BitfieldInfo last_field_info; | |||
2797 | ||||
2798 | ModuleSP module_sp = parent_die.GetDWARF()->GetObjectFile()->GetModule(); | |||
2799 | ClangASTContext *ast = | |||
2800 | llvm::dyn_cast_or_null<ClangASTContext>(class_clang_type.GetTypeSystem()); | |||
2801 | if (ast == nullptr) | |||
2802 | return 0; | |||
2803 | ||||
2804 | for (DWARFDIE die = parent_die.GetFirstChild(); die.IsValid(); | |||
2805 | die = die.GetSibling()) { | |||
2806 | dw_tag_t tag = die.Tag(); | |||
2807 | ||||
2808 | switch (tag) { | |||
2809 | case DW_TAG_member: | |||
2810 | case DW_TAG_APPLE_property: { | |||
2811 | DWARFAttributes attributes; | |||
2812 | const size_t num_attributes = die.GetAttributes(attributes); | |||
2813 | if (num_attributes > 0) { | |||
2814 | Declaration decl; | |||
2815 | // DWARFExpression location; | |||
2816 | const char *name = NULL__null; | |||
2817 | const char *prop_name = NULL__null; | |||
2818 | const char *prop_getter_name = NULL__null; | |||
2819 | const char *prop_setter_name = NULL__null; | |||
2820 | uint32_t prop_attributes = 0; | |||
2821 | ||||
2822 | bool is_artificial = false; | |||
2823 | DWARFFormValue encoding_form; | |||
2824 | AccessType accessibility = eAccessNone; | |||
2825 | uint32_t member_byte_offset = | |||
2826 | (parent_die.Tag() == DW_TAG_union_type) ? 0 : UINT32_MAX(4294967295U); | |||
2827 | size_t byte_size = 0; | |||
2828 | int64_t bit_offset = 0; | |||
2829 | uint64_t data_bit_offset = UINT64_MAX(18446744073709551615UL); | |||
2830 | size_t bit_size = 0; | |||
2831 | bool is_external = | |||
2832 | false; // On DW_TAG_members, this means the member is static | |||
2833 | uint32_t i; | |||
2834 | for (i = 0; i < num_attributes && !is_artificial; ++i) { | |||
2835 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||
2836 | DWARFFormValue form_value; | |||
2837 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { | |||
2838 | switch (attr) { | |||
2839 | case DW_AT_decl_file: | |||
2840 | decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex( | |||
2841 | form_value.Unsigned())); | |||
2842 | break; | |||
2843 | case DW_AT_decl_line: | |||
2844 | decl.SetLine(form_value.Unsigned()); | |||
2845 | break; | |||
2846 | case DW_AT_decl_column: | |||
2847 | decl.SetColumn(form_value.Unsigned()); | |||
2848 | break; | |||
2849 | case DW_AT_name: | |||
2850 | name = form_value.AsCString(); | |||
2851 | break; | |||
2852 | case DW_AT_type: | |||
2853 | encoding_form = form_value; | |||
2854 | break; | |||
2855 | case DW_AT_bit_offset: | |||
2856 | bit_offset = form_value.Signed(); | |||
2857 | break; | |||
2858 | case DW_AT_bit_size: | |||
2859 | bit_size = form_value.Unsigned(); | |||
2860 | break; | |||
2861 | case DW_AT_byte_size: | |||
2862 | byte_size = form_value.Unsigned(); | |||
2863 | break; | |||
2864 | case DW_AT_data_bit_offset: | |||
2865 | data_bit_offset = form_value.Unsigned(); | |||
2866 | break; | |||
2867 | case DW_AT_data_member_location: | |||
2868 | if (form_value.BlockData()) { | |||
2869 | Value initialValue(0); | |||
2870 | Value memberOffset(0); | |||
2871 | const DWARFDataExtractor &debug_info_data = die.GetData(); | |||
2872 | uint32_t block_length = form_value.Unsigned(); | |||
2873 | uint32_t block_offset = | |||
2874 | form_value.BlockData() - debug_info_data.GetDataStart(); | |||
2875 | if (DWARFExpression::Evaluate( | |||
2876 | nullptr, // ExecutionContext * | |||
2877 | nullptr, // RegisterContext * | |||
2878 | module_sp, debug_info_data, die.GetCU(), block_offset, | |||
2879 | block_length, eRegisterKindDWARF, &initialValue, | |||
2880 | nullptr, memberOffset, nullptr)) { | |||
2881 | member_byte_offset = memberOffset.ResolveValue(NULL__null).UInt(); | |||
2882 | } | |||
2883 | } else { | |||
2884 | // With DWARF 3 and later, if the value is an integer constant, | |||
2885 | // this form value is the offset in bytes from the beginning of | |||
2886 | // the containing entity. | |||
2887 | member_byte_offset = form_value.Unsigned(); | |||
2888 | } | |||
2889 | break; | |||
2890 | ||||
2891 | case DW_AT_accessibility: | |||
2892 | accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); | |||
2893 | break; | |||
2894 | case DW_AT_artificial: | |||
2895 | is_artificial = form_value.Boolean(); | |||
2896 | break; | |||
2897 | case DW_AT_APPLE_property_name: | |||
2898 | prop_name = form_value.AsCString(); | |||
2899 | break; | |||
2900 | case DW_AT_APPLE_property_getter: | |||
2901 | prop_getter_name = form_value.AsCString(); | |||
2902 | break; | |||
2903 | case DW_AT_APPLE_property_setter: | |||
2904 | prop_setter_name = form_value.AsCString(); | |||
2905 | break; | |||
2906 | case DW_AT_APPLE_property_attribute: | |||
2907 | prop_attributes = form_value.Unsigned(); | |||
2908 | break; | |||
2909 | case DW_AT_external: | |||
2910 | is_external = form_value.Boolean(); | |||
2911 | break; | |||
2912 | ||||
2913 | default: | |||
2914 | case DW_AT_declaration: | |||
2915 | case DW_AT_description: | |||
2916 | case DW_AT_mutable: | |||
2917 | case DW_AT_visibility: | |||
2918 | case DW_AT_sibling: | |||
2919 | break; | |||
2920 | } | |||
2921 | } | |||
2922 | } | |||
2923 | ||||
2924 | if (prop_name) { | |||
2925 | ConstString fixed_getter; | |||
2926 | ConstString fixed_setter; | |||
2927 | ||||
2928 | // Check if the property getter/setter were provided as full names. | |||
2929 | // We want basenames, so we extract them. | |||
2930 | ||||
2931 | if (prop_getter_name && prop_getter_name[0] == '-') { | |||
2932 | ObjCLanguage::MethodName prop_getter_method(prop_getter_name, true); | |||
2933 | prop_getter_name = prop_getter_method.GetSelector().GetCString(); | |||
2934 | } | |||
2935 | ||||
2936 | if (prop_setter_name && prop_setter_name[0] == '-') { | |||
2937 | ObjCLanguage::MethodName prop_setter_method(prop_setter_name, true); | |||
2938 | prop_setter_name = prop_setter_method.GetSelector().GetCString(); | |||
2939 | } | |||
2940 | ||||
2941 | // If the names haven't been provided, they need to be filled in. | |||
2942 | ||||
2943 | if (!prop_getter_name) { | |||
2944 | prop_getter_name = prop_name; | |||
2945 | } | |||
2946 | if (!prop_setter_name && prop_name[0] && | |||
2947 | !(prop_attributes & DW_APPLE_PROPERTY_readonly)) { | |||
2948 | StreamString ss; | |||
2949 | ||||
2950 | ss.Printf("set%c%s:", toupper(prop_name[0]), &prop_name[1]); | |||
2951 | ||||
2952 | fixed_setter.SetString(ss.GetString()); | |||
2953 | prop_setter_name = fixed_setter.GetCString(); | |||
2954 | } | |||
2955 | } | |||
2956 | ||||
2957 | // Clang has a DWARF generation bug where sometimes it represents | |||
2958 | // fields that are references with bad byte size and bit size/offset | |||
2959 | // information such as: | |||
2960 | // | |||
2961 | // DW_AT_byte_size( 0x00 ) | |||
2962 | // DW_AT_bit_size( 0x40 ) | |||
2963 | // DW_AT_bit_offset( 0xffffffffffffffc0 ) | |||
2964 | // | |||
2965 | // So check the bit offset to make sure it is sane, and if the values | |||
2966 | // are not sane, remove them. If we don't do this then we will end up | |||
2967 | // with a crash if we try to use this type in an expression when clang | |||
2968 | // becomes unhappy with its recycled debug info. | |||
2969 | ||||
2970 | if (byte_size == 0 && bit_offset < 0) { | |||
2971 | bit_size = 0; | |||
2972 | bit_offset = 0; | |||
2973 | } | |||
2974 | ||||
2975 | // FIXME: Make Clang ignore Objective-C accessibility for expressions | |||
2976 | if (class_language == eLanguageTypeObjC || | |||
2977 | class_language == eLanguageTypeObjC_plus_plus) | |||
2978 | accessibility = eAccessNone; | |||
2979 | ||||
2980 | if (member_idx == 0 && !is_artificial && name && | |||
2981 | (strstr(name, "_vptr$") == name)) { | |||
2982 | // Not all compilers will mark the vtable pointer member as | |||
2983 | // artificial (llvm-gcc). We can't have the virtual members in our | |||
2984 | // classes otherwise it throws off all child offsets since we end up | |||
2985 | // having and extra pointer sized member in our class layouts. | |||
2986 | is_artificial = true; | |||
2987 | } | |||
2988 | ||||
2989 | // Handle static members | |||
2990 | if (is_external && member_byte_offset == UINT32_MAX(4294967295U)) { | |||
2991 | Type *var_type = die.ResolveTypeUID(DIERef(encoding_form)); | |||
2992 | ||||
2993 | if (var_type) { | |||
2994 | if (accessibility == eAccessNone) | |||
2995 | accessibility = eAccessPublic; | |||
2996 | ClangASTContext::AddVariableToRecordType( | |||
2997 | class_clang_type, name, var_type->GetLayoutCompilerType(), | |||
2998 | accessibility); | |||
2999 | } | |||
3000 | break; | |||
3001 | } | |||
3002 | ||||
3003 | if (is_artificial == false) { | |||
3004 | Type *member_type = die.ResolveTypeUID(DIERef(encoding_form)); | |||
3005 | ||||
3006 | clang::FieldDecl *field_decl = NULL__null; | |||
3007 | if (tag == DW_TAG_member) { | |||
3008 | if (member_type) { | |||
3009 | if (accessibility == eAccessNone) | |||
3010 | accessibility = default_accessibility; | |||
3011 | member_accessibilities.push_back(accessibility); | |||
3012 | ||||
3013 | uint64_t field_bit_offset = | |||
3014 | (member_byte_offset == UINT32_MAX(4294967295U) ? 0 | |||
3015 | : (member_byte_offset * 8)); | |||
3016 | if (bit_size > 0) { | |||
3017 | ||||
3018 | BitfieldInfo this_field_info; | |||
3019 | this_field_info.bit_offset = field_bit_offset; | |||
3020 | this_field_info.bit_size = bit_size; | |||
3021 | ||||
3022 | ///////////////////////////////////////////////////////////// | |||
3023 | // How to locate a field given the DWARF debug information | |||
3024 | // | |||
3025 | // AT_byte_size indicates the size of the word in which the bit | |||
3026 | // offset must be interpreted. | |||
3027 | // | |||
3028 | // AT_data_member_location indicates the byte offset of the | |||
3029 | // word from the base address of the structure. | |||
3030 | // | |||
3031 | // AT_bit_offset indicates how many bits into the word | |||
3032 | // (according to the host endianness) the low-order bit of the | |||
3033 | // field starts. AT_bit_offset can be negative. | |||
3034 | // | |||
3035 | // AT_bit_size indicates the size of the field in bits. | |||
3036 | ///////////////////////////////////////////////////////////// | |||
3037 | ||||
3038 | if (data_bit_offset != UINT64_MAX(18446744073709551615UL)) { | |||
3039 | this_field_info.bit_offset = data_bit_offset; | |||
3040 | } else { | |||
3041 | if (byte_size == 0) | |||
3042 | byte_size = member_type->GetByteSize(); | |||
3043 | ||||
3044 | ObjectFile *objfile = die.GetDWARF()->GetObjectFile(); | |||
3045 | if (objfile->GetByteOrder() == eByteOrderLittle) { | |||
3046 | this_field_info.bit_offset += byte_size * 8; | |||
3047 | this_field_info.bit_offset -= (bit_offset + bit_size); | |||
3048 | } else { | |||
3049 | this_field_info.bit_offset += bit_offset; | |||
3050 | } | |||
3051 | } | |||
3052 | ||||
3053 | if ((this_field_info.bit_offset >= parent_bit_size) || | |||
3054 | !last_field_info.NextBitfieldOffsetIsValid( | |||
3055 | this_field_info.bit_offset)) { | |||
3056 | ObjectFile *objfile = die.GetDWARF()->GetObjectFile(); | |||
3057 | objfile->GetModule()->ReportWarning( | |||
3058 | "0x%8.8" PRIx64"l" "x" ": %s bitfield named \"%s\" has invalid " | |||
3059 | "bit offset (0x%8.8" PRIx64"l" "x" | |||
3060 | ") member will be ignored. Please file a bug against the " | |||
3061 | "compiler and include the preprocessed output for %s\n", | |||
3062 | die.GetID(), DW_TAG_value_to_name(tag), name, | |||
3063 | this_field_info.bit_offset, | |||
3064 | sc.comp_unit ? sc.comp_unit->GetPath().c_str() | |||
3065 | : "the source file"); | |||
3066 | this_field_info.Clear(); | |||
3067 | continue; | |||
3068 | } | |||
3069 | ||||
3070 | // Update the field bit offset we will report for layout | |||
3071 | field_bit_offset = this_field_info.bit_offset; | |||
3072 | ||||
3073 | // If the member to be emitted did not start on a character | |||
3074 | // boundary and there is empty space between the last field and | |||
3075 | // this one, then we need to emit an anonymous member filling | |||
3076 | // up the space up to its start. There are three cases here: | |||
3077 | // | |||
3078 | // 1 If the previous member ended on a character boundary, then | |||
3079 | // we can emit an | |||
3080 | // anonymous member starting at the most recent character | |||
3081 | // boundary. | |||
3082 | // | |||
3083 | // 2 If the previous member did not end on a character boundary | |||
3084 | // and the distance | |||
3085 | // from the end of the previous member to the current member | |||
3086 | // is less than a | |||
3087 | // word width, then we can emit an anonymous member starting | |||
3088 | // right after the | |||
3089 | // previous member and right before this member. | |||
3090 | // | |||
3091 | // 3 If the previous member did not end on a character boundary | |||
3092 | // and the distance | |||
3093 | // from the end of the previous member to the current member | |||
3094 | // is greater than | |||
3095 | // or equal a word width, then we act as in Case 1. | |||
3096 | ||||
3097 | const uint64_t character_width = 8; | |||
3098 | const uint64_t word_width = 32; | |||
3099 | ||||
3100 | // Objective-C has invalid DW_AT_bit_offset values in older | |||
3101 | // versions of clang, so we have to be careful and only insert | |||
3102 | // unnamed bitfields if we have a new enough clang. | |||
3103 | bool detect_unnamed_bitfields = true; | |||
3104 | ||||
3105 | if (class_language == eLanguageTypeObjC || | |||
3106 | class_language == eLanguageTypeObjC_plus_plus) | |||
3107 | detect_unnamed_bitfields = | |||
3108 | die.GetCU()->Supports_unnamed_objc_bitfields(); | |||
3109 | ||||
3110 | if (detect_unnamed_bitfields) { | |||
3111 | BitfieldInfo anon_field_info; | |||
3112 | ||||
3113 | if ((this_field_info.bit_offset % character_width) != | |||
3114 | 0) // not char aligned | |||
3115 | { | |||
3116 | uint64_t last_field_end = 0; | |||
3117 | ||||
3118 | if (last_field_info.IsValid()) | |||
3119 | last_field_end = | |||
3120 | last_field_info.bit_offset + last_field_info.bit_size; | |||
3121 | ||||
3122 | if (this_field_info.bit_offset != last_field_end) { | |||
3123 | if (((last_field_end % character_width) == 0) || // case 1 | |||
3124 | (this_field_info.bit_offset - last_field_end >= | |||
3125 | word_width)) // case 3 | |||
3126 | { | |||
3127 | anon_field_info.bit_size = | |||
3128 | this_field_info.bit_offset % character_width; | |||
3129 | anon_field_info.bit_offset = | |||
3130 | this_field_info.bit_offset - | |||
3131 | anon_field_info.bit_size; | |||
3132 | } else // case 2 | |||
3133 | { | |||
3134 | anon_field_info.bit_size = | |||
3135 | this_field_info.bit_offset - last_field_end; | |||
3136 | anon_field_info.bit_offset = last_field_end; | |||
3137 | } | |||
3138 | } | |||
3139 | } | |||
3140 | ||||
3141 | if (anon_field_info.IsValid()) { | |||
3142 | clang::FieldDecl *unnamed_bitfield_decl = | |||
3143 | ClangASTContext::AddFieldToRecordType( | |||
3144 | class_clang_type, NULL__null, | |||
3145 | m_ast.GetBuiltinTypeForEncodingAndBitSize( | |||
3146 | eEncodingSint, word_width), | |||
3147 | accessibility, anon_field_info.bit_size); | |||
3148 | ||||
3149 | layout_info.field_offsets.insert(std::make_pair( | |||
3150 | unnamed_bitfield_decl, anon_field_info.bit_offset)); | |||
3151 | } | |||
3152 | } | |||
3153 | last_field_info = this_field_info; | |||
3154 | } else { | |||
3155 | last_field_info.Clear(); | |||
3156 | } | |||
3157 | ||||
3158 | CompilerType member_clang_type = | |||
3159 | member_type->GetLayoutCompilerType(); | |||
3160 | if (!member_clang_type.IsCompleteType()) | |||
3161 | member_clang_type.GetCompleteType(); | |||
3162 | ||||
3163 | { | |||
3164 | // Older versions of clang emit array[0] and array[1] in the | |||
3165 | // same way (<rdar://problem/12566646>). If the current field | |||
3166 | // is at the end of the structure, then there is definitely no | |||
3167 | // room for extra elements and we override the type to | |||
3168 | // array[0]. | |||
3169 | ||||
3170 | CompilerType member_array_element_type; | |||
3171 | uint64_t member_array_size; | |||
3172 | bool member_array_is_incomplete; | |||
3173 | ||||
3174 | if (member_clang_type.IsArrayType( | |||
3175 | &member_array_element_type, &member_array_size, | |||
3176 | &member_array_is_incomplete) && | |||
3177 | !member_array_is_incomplete) { | |||
3178 | uint64_t parent_byte_size = | |||
3179 | parent_die.GetAttributeValueAsUnsigned(DW_AT_byte_size, | |||
3180 | UINT64_MAX(18446744073709551615UL)); | |||
3181 | ||||
3182 | if (member_byte_offset >= parent_byte_size) { | |||
3183 | if (member_array_size != 1 && | |||
3184 | (member_array_size != 0 || | |||
3185 | member_byte_offset > parent_byte_size)) { | |||
3186 | module_sp->ReportError( | |||
3187 | "0x%8.8" PRIx64"l" "x" | |||
3188 | ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64"l" "x" | |||
3189 | " which extends beyond the bounds of 0x%8.8" PRIx64"l" "x", | |||
3190 | die.GetID(), name, encoding_form.Reference(), | |||
3191 | parent_die.GetID()); | |||
3192 | } | |||
3193 | ||||
3194 | member_clang_type = m_ast.CreateArrayType( | |||
3195 | member_array_element_type, 0, false); | |||
3196 | } | |||
3197 | } | |||
3198 | } | |||
3199 | ||||
3200 | if (ClangASTContext::IsCXXClassType(member_clang_type) && | |||
3201 | member_clang_type.GetCompleteType() == false) { | |||
3202 | if (die.GetCU()->GetProducer() == eProducerClang) | |||
3203 | module_sp->ReportError( | |||
3204 | "DWARF DIE at 0x%8.8x (class %s) has a member variable " | |||
3205 | "0x%8.8x (%s) whose type is a forward declaration, not a " | |||
3206 | "complete definition.\nTry compiling the source file " | |||
3207 | "with -fstandalone-debug", | |||
3208 | parent_die.GetOffset(), parent_die.GetName(), | |||
3209 | die.GetOffset(), name); | |||
3210 | else | |||
3211 | module_sp->ReportError( | |||
3212 | "DWARF DIE at 0x%8.8x (class %s) has a member variable " | |||
3213 | "0x%8.8x (%s) whose type is a forward declaration, not a " | |||
3214 | "complete definition.\nPlease file a bug against the " | |||
3215 | "compiler and include the preprocessed output for %s", | |||
3216 | parent_die.GetOffset(), parent_die.GetName(), | |||
3217 | die.GetOffset(), name, | |||
3218 | sc.comp_unit ? sc.comp_unit->GetPath().c_str() | |||
3219 | : "the source file"); | |||
3220 | // We have no choice other than to pretend that the member | |||
3221 | // class is complete. If we don't do this, clang will crash | |||
3222 | // when trying to layout the class. Since we provide layout | |||
3223 | // assistance, all ivars in this class and other classes will | |||
3224 | // be fine, this is the best we can do short of crashing. | |||
3225 | if (ClangASTContext::StartTagDeclarationDefinition( | |||
3226 | member_clang_type)) { | |||
3227 | ClangASTContext::CompleteTagDeclarationDefinition( | |||
3228 | member_clang_type); | |||
3229 | } else { | |||
3230 | module_sp->ReportError( | |||
3231 | "DWARF DIE at 0x%8.8x (class %s) has a member variable " | |||
3232 | "0x%8.8x (%s) whose type claims to be a C++ class but we " | |||
3233 | "were not able to start its definition.\nPlease file a " | |||
3234 | "bug and attach the file at the start of this error " | |||
3235 | "message", | |||
3236 | parent_die.GetOffset(), parent_die.GetName(), | |||
3237 | die.GetOffset(), name); | |||
3238 | } | |||
3239 | } | |||
3240 | ||||
3241 | field_decl = ClangASTContext::AddFieldToRecordType( | |||
3242 | class_clang_type, name, member_clang_type, accessibility, | |||
3243 | bit_size); | |||
3244 | ||||
3245 | m_ast.SetMetadataAsUserID(field_decl, die.GetID()); | |||
3246 | ||||
3247 | layout_info.field_offsets.insert( | |||
3248 | std::make_pair(field_decl, field_bit_offset)); | |||
3249 | } else { | |||
3250 | if (name) | |||
3251 | module_sp->ReportError( | |||
3252 | "0x%8.8" PRIx64"l" "x" | |||
3253 | ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64"l" "x" | |||
3254 | " which was unable to be parsed", | |||
3255 | die.GetID(), name, encoding_form.Reference()); | |||
3256 | else | |||
3257 | module_sp->ReportError( | |||
3258 | "0x%8.8" PRIx64"l" "x" | |||
3259 | ": DW_TAG_member refers to type 0x%8.8" PRIx64"l" "x" | |||
3260 | " which was unable to be parsed", | |||
3261 | die.GetID(), encoding_form.Reference()); | |||
3262 | } | |||
3263 | } | |||
3264 | ||||
3265 | if (prop_name != NULL__null && member_type) { | |||
3266 | clang::ObjCIvarDecl *ivar_decl = NULL__null; | |||
3267 | ||||
3268 | if (field_decl) { | |||
3269 | ivar_decl = clang::dyn_cast<clang::ObjCIvarDecl>(field_decl); | |||
3270 | assert(ivar_decl != NULL)(static_cast <bool> (ivar_decl != __null) ? void (0) : __assert_fail ("ivar_decl != NULL", "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 3270, __extension__ __PRETTY_FUNCTION__)); | |||
3271 | } | |||
3272 | ||||
3273 | ClangASTMetadata metadata; | |||
3274 | metadata.SetUserID(die.GetID()); | |||
3275 | delayed_properties.push_back(DelayedAddObjCClassProperty( | |||
3276 | class_clang_type, prop_name, | |||
3277 | member_type->GetLayoutCompilerType(), ivar_decl, | |||
3278 | prop_setter_name, prop_getter_name, prop_attributes, | |||
3279 | &metadata)); | |||
3280 | ||||
3281 | if (ivar_decl) | |||
3282 | m_ast.SetMetadataAsUserID(ivar_decl, die.GetID()); | |||
3283 | } | |||
3284 | } | |||
3285 | } | |||
3286 | ++member_idx; | |||
3287 | } break; | |||
3288 | ||||
3289 | case DW_TAG_subprogram: | |||
3290 | // Let the type parsing code handle this one for us. | |||
3291 | member_function_dies.Append(die); | |||
3292 | break; | |||
3293 | ||||
3294 | case DW_TAG_inheritance: { | |||
3295 | is_a_class = true; | |||
3296 | if (default_accessibility == eAccessNone) | |||
3297 | default_accessibility = eAccessPrivate; | |||
3298 | // TODO: implement DW_TAG_inheritance type parsing | |||
3299 | DWARFAttributes attributes; | |||
3300 | const size_t num_attributes = die.GetAttributes(attributes); | |||
3301 | if (num_attributes > 0) { | |||
3302 | Declaration decl; | |||
3303 | DWARFExpression location(die.GetCU()); | |||
3304 | DWARFFormValue encoding_form; | |||
3305 | AccessType accessibility = default_accessibility; | |||
3306 | bool is_virtual = false; | |||
3307 | bool is_base_of_class = true; | |||
3308 | off_t member_byte_offset = 0; | |||
3309 | uint32_t i; | |||
3310 | for (i = 0; i < num_attributes; ++i) { | |||
3311 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||
3312 | DWARFFormValue form_value; | |||
3313 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { | |||
3314 | switch (attr) { | |||
3315 | case DW_AT_decl_file: | |||
3316 | decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex( | |||
3317 | form_value.Unsigned())); | |||
3318 | break; | |||
3319 | case DW_AT_decl_line: | |||
3320 | decl.SetLine(form_value.Unsigned()); | |||
3321 | break; | |||
3322 | case DW_AT_decl_column: | |||
3323 | decl.SetColumn(form_value.Unsigned()); | |||
3324 | break; | |||
3325 | case DW_AT_type: | |||
3326 | encoding_form = form_value; | |||
3327 | break; | |||
3328 | case DW_AT_data_member_location: | |||
3329 | if (form_value.BlockData()) { | |||
3330 | Value initialValue(0); | |||
3331 | Value memberOffset(0); | |||
3332 | const DWARFDataExtractor &debug_info_data = die.GetData(); | |||
3333 | uint32_t block_length = form_value.Unsigned(); | |||
3334 | uint32_t block_offset = | |||
3335 | form_value.BlockData() - debug_info_data.GetDataStart(); | |||
3336 | if (DWARFExpression::Evaluate(nullptr, nullptr, module_sp, | |||
3337 | debug_info_data, die.GetCU(), | |||
3338 | block_offset, block_length, | |||
3339 | eRegisterKindDWARF, &initialValue, | |||
3340 | nullptr, memberOffset, nullptr)) { | |||
3341 | member_byte_offset = memberOffset.ResolveValue(NULL__null).UInt(); | |||
3342 | } | |||
3343 | } else { | |||
3344 | // With DWARF 3 and later, if the value is an integer constant, | |||
3345 | // this form value is the offset in bytes from the beginning of | |||
3346 | // the containing entity. | |||
3347 | member_byte_offset = form_value.Unsigned(); | |||
3348 | } | |||
3349 | break; | |||
3350 | ||||
3351 | case DW_AT_accessibility: | |||
3352 | accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); | |||
3353 | break; | |||
3354 | ||||
3355 | case DW_AT_virtuality: | |||
3356 | is_virtual = form_value.Boolean(); | |||
3357 | break; | |||
3358 | ||||
3359 | case DW_AT_sibling: | |||
3360 | break; | |||
3361 | ||||
3362 | default: | |||
3363 | break; | |||
3364 | } | |||
3365 | } | |||
3366 | } | |||
3367 | ||||
3368 | Type *base_class_type = die.ResolveTypeUID(DIERef(encoding_form)); | |||
3369 | if (base_class_type == NULL__null) { | |||
3370 | module_sp->ReportError("0x%8.8x: DW_TAG_inheritance failed to " | |||
3371 | "resolve the base class at 0x%8.8" PRIx64"l" "x" | |||
3372 | " from enclosing type 0x%8.8x. \nPlease file " | |||
3373 | "a bug and attach the file at the start of " | |||
3374 | "this error message", | |||
3375 | die.GetOffset(), encoding_form.Reference(), | |||
3376 | parent_die.GetOffset()); | |||
3377 | break; | |||
3378 | } | |||
3379 | ||||
3380 | CompilerType base_class_clang_type = | |||
3381 | base_class_type->GetFullCompilerType(); | |||
3382 | assert(base_class_clang_type)(static_cast <bool> (base_class_clang_type) ? void (0) : __assert_fail ("base_class_clang_type", "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 3382, __extension__ __PRETTY_FUNCTION__)); | |||
3383 | if (class_language == eLanguageTypeObjC) { | |||
3384 | ast->SetObjCSuperClass(class_clang_type, base_class_clang_type); | |||
3385 | } else { | |||
3386 | base_classes.push_back(ast->CreateBaseClassSpecifier( | |||
3387 | base_class_clang_type.GetOpaqueQualType(), accessibility, | |||
3388 | is_virtual, is_base_of_class)); | |||
3389 | ||||
3390 | if (is_virtual) { | |||
3391 | // Do not specify any offset for virtual inheritance. The DWARF | |||
3392 | // produced by clang doesn't give us a constant offset, but gives | |||
3393 | // us a DWARF expressions that requires an actual object in memory. | |||
3394 | // the DW_AT_data_member_location for a virtual base class looks | |||
3395 | // like: | |||
3396 | // DW_AT_data_member_location( DW_OP_dup, DW_OP_deref, | |||
3397 | // DW_OP_constu(0x00000018), DW_OP_minus, DW_OP_deref, | |||
3398 | // DW_OP_plus ) | |||
3399 | // Given this, there is really no valid response we can give to | |||
3400 | // clang for virtual base class offsets, and this should eventually | |||
3401 | // be removed from LayoutRecordType() in the external | |||
3402 | // AST source in clang. | |||
3403 | } else { | |||
3404 | layout_info.base_offsets.insert(std::make_pair( | |||
3405 | ast->GetAsCXXRecordDecl( | |||
3406 | base_class_clang_type.GetOpaqueQualType()), | |||
3407 | clang::CharUnits::fromQuantity(member_byte_offset))); | |||
3408 | } | |||
3409 | } | |||
3410 | } | |||
3411 | } break; | |||
3412 | ||||
3413 | default: | |||
3414 | break; | |||
3415 | } | |||
3416 | } | |||
3417 | ||||
3418 | return true; | |||
3419 | } | |||
3420 | ||||
3421 | size_t DWARFASTParserClang::ParseChildParameters( | |||
3422 | const SymbolContext &sc, clang::DeclContext *containing_decl_ctx, | |||
3423 | const DWARFDIE &parent_die, bool skip_artificial, bool &is_static, | |||
3424 | bool &is_variadic, bool &has_template_params, | |||
3425 | std::vector<CompilerType> &function_param_types, | |||
3426 | std::vector<clang::ParmVarDecl *> &function_param_decls, | |||
3427 | unsigned &type_quals) { | |||
3428 | if (!parent_die) | |||
3429 | return 0; | |||
3430 | ||||
3431 | size_t arg_idx = 0; | |||
3432 | for (DWARFDIE die = parent_die.GetFirstChild(); die.IsValid(); | |||
3433 | die = die.GetSibling()) { | |||
3434 | const dw_tag_t tag = die.Tag(); | |||
3435 | switch (tag) { | |||
3436 | case DW_TAG_formal_parameter: { | |||
3437 | DWARFAttributes attributes; | |||
3438 | const size_t num_attributes = die.GetAttributes(attributes); | |||
3439 | if (num_attributes > 0) { | |||
3440 | const char *name = NULL__null; | |||
3441 | Declaration decl; | |||
3442 | DWARFFormValue param_type_die_form; | |||
3443 | bool is_artificial = false; | |||
3444 | // one of None, Auto, Register, Extern, Static, PrivateExtern | |||
3445 | ||||
3446 | clang::StorageClass storage = clang::SC_None; | |||
3447 | uint32_t i; | |||
3448 | for (i = 0; i < num_attributes; ++i) { | |||
3449 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||
3450 | DWARFFormValue form_value; | |||
3451 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { | |||
3452 | switch (attr) { | |||
3453 | case DW_AT_decl_file: | |||
3454 | decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex( | |||
3455 | form_value.Unsigned())); | |||
3456 | break; | |||
3457 | case DW_AT_decl_line: | |||
3458 | decl.SetLine(form_value.Unsigned()); | |||
3459 | break; | |||
3460 | case DW_AT_decl_column: | |||
3461 | decl.SetColumn(form_value.Unsigned()); | |||
3462 | break; | |||
3463 | case DW_AT_name: | |||
3464 | name = form_value.AsCString(); | |||
3465 | break; | |||
3466 | case DW_AT_type: | |||
3467 | param_type_die_form = form_value; | |||
3468 | break; | |||
3469 | case DW_AT_artificial: | |||
3470 | is_artificial = form_value.Boolean(); | |||
3471 | break; | |||
3472 | case DW_AT_location: | |||
3473 | case DW_AT_const_value: | |||
3474 | case DW_AT_default_value: | |||
3475 | case DW_AT_description: | |||
3476 | case DW_AT_endianity: | |||
3477 | case DW_AT_is_optional: | |||
3478 | case DW_AT_segment: | |||
3479 | case DW_AT_variable_parameter: | |||
3480 | default: | |||
3481 | case DW_AT_abstract_origin: | |||
3482 | case DW_AT_sibling: | |||
3483 | break; | |||
3484 | } | |||
3485 | } | |||
3486 | } | |||
3487 | ||||
3488 | bool skip = false; | |||
3489 | if (skip_artificial && is_artificial) { | |||
3490 | // In order to determine if a C++ member function is "const" we | |||
3491 | // have to look at the const-ness of "this"... | |||
3492 | if (arg_idx == 0 && | |||
3493 | DeclKindIsCXXClass(containing_decl_ctx->getDeclKind()) && | |||
3494 | // Often times compilers omit the "this" name for the | |||
3495 | // specification DIEs, so we can't rely upon the name being in | |||
3496 | // the formal parameter DIE... | |||
3497 | (name == NULL__null || ::strcmp(name, "this") == 0)) { | |||
3498 | Type *this_type = die.ResolveTypeUID(DIERef(param_type_die_form)); | |||
3499 | if (this_type) { | |||
3500 | uint32_t encoding_mask = this_type->GetEncodingMask(); | |||
3501 | if (encoding_mask & Type::eEncodingIsPointerUID) { | |||
3502 | is_static = false; | |||
3503 | ||||
3504 | if (encoding_mask & (1u << Type::eEncodingIsConstUID)) | |||
3505 | type_quals |= clang::Qualifiers::Const; | |||
3506 | if (encoding_mask & (1u << Type::eEncodingIsVolatileUID)) | |||
3507 | type_quals |= clang::Qualifiers::Volatile; | |||
3508 | } | |||
3509 | } | |||
3510 | } | |||
3511 | skip = true; | |||
3512 | } | |||
3513 | ||||
3514 | if (!skip) { | |||
3515 | Type *type = die.ResolveTypeUID(DIERef(param_type_die_form)); | |||
3516 | if (type) { | |||
3517 | function_param_types.push_back(type->GetForwardCompilerType()); | |||
3518 | ||||
3519 | clang::ParmVarDecl *param_var_decl = | |||
3520 | m_ast.CreateParameterDeclaration( | |||
3521 | name, type->GetForwardCompilerType(), storage); | |||
3522 | assert(param_var_decl)(static_cast <bool> (param_var_decl) ? void (0) : __assert_fail ("param_var_decl", "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 3522, __extension__ __PRETTY_FUNCTION__)); | |||
3523 | function_param_decls.push_back(param_var_decl); | |||
3524 | ||||
3525 | m_ast.SetMetadataAsUserID(param_var_decl, die.GetID()); | |||
3526 | } | |||
3527 | } | |||
3528 | } | |||
3529 | arg_idx++; | |||
3530 | } break; | |||
3531 | ||||
3532 | case DW_TAG_unspecified_parameters: | |||
3533 | is_variadic = true; | |||
3534 | break; | |||
3535 | ||||
3536 | case DW_TAG_template_type_parameter: | |||
3537 | case DW_TAG_template_value_parameter: | |||
3538 | case DW_TAG_GNU_template_parameter_pack: | |||
3539 | // The one caller of this was never using the template_param_infos, and | |||
3540 | // the local variable was taking up a large amount of stack space in | |||
3541 | // SymbolFileDWARF::ParseType() so this was removed. If we ever need the | |||
3542 | // template params back, we can add them back. | |||
3543 | // ParseTemplateDIE (dwarf_cu, die, template_param_infos); | |||
3544 | has_template_params = true; | |||
3545 | break; | |||
3546 | ||||
3547 | default: | |||
3548 | break; | |||
3549 | } | |||
3550 | } | |||
3551 | return arg_idx; | |||
3552 | } | |||
3553 | ||||
3554 | void DWARFASTParserClang::ParseChildArrayInfo( | |||
3555 | const SymbolContext &sc, const DWARFDIE &parent_die, int64_t &first_index, | |||
3556 | std::vector<uint64_t> &element_orders, uint32_t &byte_stride, | |||
3557 | uint32_t &bit_stride) { | |||
3558 | if (!parent_die) | |||
3559 | return; | |||
3560 | ||||
3561 | for (DWARFDIE die = parent_die.GetFirstChild(); die.IsValid(); | |||
3562 | die = die.GetSibling()) { | |||
3563 | const dw_tag_t tag = die.Tag(); | |||
3564 | switch (tag) { | |||
3565 | case DW_TAG_subrange_type: { | |||
3566 | DWARFAttributes attributes; | |||
3567 | const size_t num_child_attributes = die.GetAttributes(attributes); | |||
3568 | if (num_child_attributes > 0) { | |||
3569 | uint64_t num_elements = 0; | |||
3570 | uint64_t lower_bound = 0; | |||
3571 | uint64_t upper_bound = 0; | |||
3572 | bool upper_bound_valid = false; | |||
3573 | uint32_t i; | |||
3574 | for (i = 0; i < num_child_attributes; ++i) { | |||
3575 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||
3576 | DWARFFormValue form_value; | |||
3577 | if (attributes.ExtractFormValueAtIndex(i, form_value)) { | |||
3578 | switch (attr) { | |||
3579 | case DW_AT_name: | |||
3580 | break; | |||
3581 | ||||
3582 | case DW_AT_count: | |||
3583 | num_elements = form_value.Unsigned(); | |||
3584 | break; | |||
3585 | ||||
3586 | case DW_AT_bit_stride: | |||
3587 | bit_stride = form_value.Unsigned(); | |||
3588 | break; | |||
3589 | ||||
3590 | case DW_AT_byte_stride: | |||
3591 | byte_stride = form_value.Unsigned(); | |||
3592 | break; | |||
3593 | ||||
3594 | case DW_AT_lower_bound: | |||
3595 | lower_bound = form_value.Unsigned(); | |||
3596 | break; | |||
3597 | ||||
3598 | case DW_AT_upper_bound: | |||
3599 | upper_bound_valid = true; | |||
3600 | upper_bound = form_value.Unsigned(); | |||
3601 | break; | |||
3602 | ||||
3603 | default: | |||
3604 | case DW_AT_abstract_origin: | |||
3605 | case DW_AT_accessibility: | |||
3606 | case DW_AT_allocated: | |||
3607 | case DW_AT_associated: | |||
3608 | case DW_AT_data_location: | |||
3609 | case DW_AT_declaration: | |||
3610 | case DW_AT_description: | |||
3611 | case DW_AT_sibling: | |||
3612 | case DW_AT_threads_scaled: | |||
3613 | case DW_AT_type: | |||
3614 | case DW_AT_visibility: | |||
3615 | break; | |||
3616 | } | |||
3617 | } | |||
3618 | } | |||
3619 | ||||
3620 | if (num_elements == 0) { | |||
3621 | if (upper_bound_valid && upper_bound >= lower_bound) | |||
3622 | num_elements = upper_bound - lower_bound + 1; | |||
3623 | } | |||
3624 | ||||
3625 | element_orders.push_back(num_elements); | |||
3626 | } | |||
3627 | } break; | |||
3628 | } | |||
3629 | } | |||
3630 | } | |||
3631 | ||||
3632 | Type *DWARFASTParserClang::GetTypeForDIE(const DWARFDIE &die) { | |||
3633 | if (die) { | |||
3634 | SymbolFileDWARF *dwarf = die.GetDWARF(); | |||
3635 | DWARFAttributes attributes; | |||
3636 | const size_t num_attributes = die.GetAttributes(attributes); | |||
3637 | if (num_attributes > 0) { | |||
3638 | DWARFFormValue type_die_form; | |||
3639 | for (size_t i = 0; i < num_attributes; ++i) { | |||
3640 | dw_attr_t attr = attributes.AttributeAtIndex(i); | |||
3641 | DWARFFormValue form_value; | |||
3642 | ||||
3643 | if (attr == DW_AT_type && | |||
3644 | attributes.ExtractFormValueAtIndex(i, form_value)) | |||
3645 | return dwarf->ResolveTypeUID(dwarf->GetDIE(DIERef(form_value)), true); | |||
3646 | } | |||
3647 | } | |||
3648 | } | |||
3649 | ||||
3650 | return nullptr; | |||
3651 | } | |||
3652 | ||||
3653 | clang::Decl *DWARFASTParserClang::GetClangDeclForDIE(const DWARFDIE &die) { | |||
3654 | if (!die) | |||
3655 | return nullptr; | |||
3656 | ||||
3657 | switch (die.Tag()) { | |||
3658 | case DW_TAG_variable: | |||
3659 | case DW_TAG_constant: | |||
3660 | case DW_TAG_formal_parameter: | |||
3661 | case DW_TAG_imported_declaration: | |||
3662 | case DW_TAG_imported_module: | |||
3663 | break; | |||
3664 | default: | |||
3665 | return nullptr; | |||
3666 | } | |||
3667 | ||||
3668 | DIEToDeclMap::iterator cache_pos = m_die_to_decl.find(die.GetDIE()); | |||
3669 | if (cache_pos != m_die_to_decl.end()) | |||
3670 | return cache_pos->second; | |||
3671 | ||||
3672 | if (DWARFDIE spec_die = die.GetReferencedDIE(DW_AT_specification)) { | |||
3673 | clang::Decl *decl = GetClangDeclForDIE(spec_die); | |||
3674 | m_die_to_decl[die.GetDIE()] = decl; | |||
3675 | m_decl_to_die[decl].insert(die.GetDIE()); | |||
3676 | return decl; | |||
3677 | } | |||
3678 | ||||
3679 | if (DWARFDIE abstract_origin_die = | |||
3680 | die.GetReferencedDIE(DW_AT_abstract_origin)) { | |||
3681 | clang::Decl *decl = GetClangDeclForDIE(abstract_origin_die); | |||
3682 | m_die_to_decl[die.GetDIE()] = decl; | |||
3683 | m_decl_to_die[decl].insert(die.GetDIE()); | |||
3684 | return decl; | |||
3685 | } | |||
3686 | ||||
3687 | clang::Decl *decl = nullptr; | |||
3688 | switch (die.Tag()) { | |||
3689 | case DW_TAG_variable: | |||
3690 | case DW_TAG_constant: | |||
3691 | case DW_TAG_formal_parameter: { | |||
3692 | SymbolFileDWARF *dwarf = die.GetDWARF(); | |||
3693 | Type *type = GetTypeForDIE(die); | |||
3694 | if (dwarf && type) { | |||
3695 | const char *name = die.GetName(); | |||
3696 | clang::DeclContext *decl_context = | |||
3697 | ClangASTContext::DeclContextGetAsDeclContext( | |||
3698 | dwarf->GetDeclContextContainingUID(die.GetID())); | |||
3699 | decl = m_ast.CreateVariableDeclaration( | |||
3700 | decl_context, name, | |||
3701 | ClangUtil::GetQualType(type->GetForwardCompilerType())); | |||
3702 | } | |||
3703 | break; | |||
3704 | } | |||
3705 | case DW_TAG_imported_declaration: { | |||
3706 | SymbolFileDWARF *dwarf = die.GetDWARF(); | |||
3707 | DWARFDIE imported_uid = die.GetAttributeValueAsReferenceDIE(DW_AT_import); | |||
3708 | if (imported_uid) { | |||
3709 | CompilerDecl imported_decl = imported_uid.GetDecl(); | |||
3710 | if (imported_decl) { | |||
3711 | clang::DeclContext *decl_context = | |||
3712 | ClangASTContext::DeclContextGetAsDeclContext( | |||
3713 | dwarf->GetDeclContextContainingUID(die.GetID())); | |||
3714 | if (clang::NamedDecl *clang_imported_decl = | |||
3715 | llvm::dyn_cast<clang::NamedDecl>( | |||
3716 | (clang::Decl *)imported_decl.GetOpaqueDecl())) | |||
3717 | decl = | |||
3718 | m_ast.CreateUsingDeclaration(decl_context, clang_imported_decl); | |||
3719 | } | |||
3720 | } | |||
3721 | break; | |||
3722 | } | |||
3723 | case DW_TAG_imported_module: { | |||
3724 | SymbolFileDWARF *dwarf = die.GetDWARF(); | |||
3725 | DWARFDIE imported_uid = die.GetAttributeValueAsReferenceDIE(DW_AT_import); | |||
3726 | ||||
3727 | if (imported_uid) { | |||
3728 | CompilerDeclContext imported_decl_ctx = imported_uid.GetDeclContext(); | |||
3729 | if (imported_decl_ctx) { | |||
3730 | clang::DeclContext *decl_context = | |||
3731 | ClangASTContext::DeclContextGetAsDeclContext( | |||
3732 | dwarf->GetDeclContextContainingUID(die.GetID())); | |||
3733 | if (clang::NamespaceDecl *ns_decl = | |||
3734 | ClangASTContext::DeclContextGetAsNamespaceDecl( | |||
3735 | imported_decl_ctx)) | |||
3736 | decl = m_ast.CreateUsingDirectiveDeclaration(decl_context, ns_decl); | |||
3737 | } | |||
3738 | } | |||
3739 | break; | |||
3740 | } | |||
3741 | default: | |||
3742 | break; | |||
3743 | } | |||
3744 | ||||
3745 | m_die_to_decl[die.GetDIE()] = decl; | |||
3746 | m_decl_to_die[decl].insert(die.GetDIE()); | |||
3747 | ||||
3748 | return decl; | |||
3749 | } | |||
3750 | ||||
3751 | clang::DeclContext * | |||
3752 | DWARFASTParserClang::GetClangDeclContextForDIE(const DWARFDIE &die) { | |||
3753 | if (die) { | |||
3754 | clang::DeclContext *decl_ctx = GetCachedClangDeclContextForDIE(die); | |||
3755 | if (decl_ctx) | |||
3756 | return decl_ctx; | |||
3757 | ||||
3758 | bool try_parsing_type = true; | |||
3759 | switch (die.Tag()) { | |||
3760 | case DW_TAG_compile_unit: | |||
3761 | case DW_TAG_partial_unit: | |||
3762 | decl_ctx = m_ast.GetTranslationUnitDecl(); | |||
3763 | try_parsing_type = false; | |||
3764 | break; | |||
3765 | ||||
3766 | case DW_TAG_namespace: | |||
3767 | decl_ctx = ResolveNamespaceDIE(die); | |||
3768 | try_parsing_type = false; | |||
3769 | break; | |||
3770 | ||||
3771 | case DW_TAG_lexical_block: | |||
3772 | decl_ctx = GetDeclContextForBlock(die); | |||
3773 | try_parsing_type = false; | |||
3774 | break; | |||
3775 | ||||
3776 | default: | |||
3777 | break; | |||
3778 | } | |||
3779 | ||||
3780 | if (decl_ctx == nullptr && try_parsing_type) { | |||
3781 | Type *type = die.GetDWARF()->ResolveType(die); | |||
3782 | if (type) | |||
3783 | decl_ctx = GetCachedClangDeclContextForDIE(die); | |||
3784 | } | |||
3785 | ||||
3786 | if (decl_ctx) { | |||
3787 | LinkDeclContextToDIE(decl_ctx, die); | |||
3788 | return decl_ctx; | |||
3789 | } | |||
3790 | } | |||
3791 | return nullptr; | |||
3792 | } | |||
3793 | ||||
3794 | static bool IsSubroutine(const DWARFDIE &die) { | |||
3795 | switch (die.Tag()) { | |||
3796 | case DW_TAG_subprogram: | |||
3797 | case DW_TAG_inlined_subroutine: | |||
3798 | return true; | |||
3799 | default: | |||
3800 | return false; | |||
3801 | } | |||
3802 | } | |||
3803 | ||||
3804 | static DWARFDIE GetContainingFunctionWithAbstractOrigin(const DWARFDIE &die) { | |||
3805 | for (DWARFDIE candidate = die; candidate; candidate = candidate.GetParent()) { | |||
3806 | if (IsSubroutine(candidate)) { | |||
3807 | if (candidate.GetReferencedDIE(DW_AT_abstract_origin)) { | |||
3808 | return candidate; | |||
3809 | } else { | |||
3810 | return DWARFDIE(); | |||
3811 | } | |||
3812 | } | |||
3813 | } | |||
3814 | assert(0 && "Shouldn't call GetContainingFunctionWithAbstractOrigin on "(static_cast <bool> (0 && "Shouldn't call GetContainingFunctionWithAbstractOrigin on " "something not in a function") ? void (0) : __assert_fail ("0 && \"Shouldn't call GetContainingFunctionWithAbstractOrigin on \" \"something not in a function\"" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 3815, __extension__ __PRETTY_FUNCTION__)) | |||
3815 | "something not in a function")(static_cast <bool> (0 && "Shouldn't call GetContainingFunctionWithAbstractOrigin on " "something not in a function") ? void (0) : __assert_fail ("0 && \"Shouldn't call GetContainingFunctionWithAbstractOrigin on \" \"something not in a function\"" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 3815, __extension__ __PRETTY_FUNCTION__)); | |||
3816 | return DWARFDIE(); | |||
3817 | } | |||
3818 | ||||
3819 | static DWARFDIE FindAnyChildWithAbstractOrigin(const DWARFDIE &context) { | |||
3820 | for (DWARFDIE candidate = context.GetFirstChild(); candidate.IsValid(); | |||
3821 | candidate = candidate.GetSibling()) { | |||
3822 | if (candidate.GetReferencedDIE(DW_AT_abstract_origin)) { | |||
3823 | return candidate; | |||
3824 | } | |||
3825 | } | |||
3826 | return DWARFDIE(); | |||
3827 | } | |||
3828 | ||||
3829 | static DWARFDIE FindFirstChildWithAbstractOrigin(const DWARFDIE &block, | |||
3830 | const DWARFDIE &function) { | |||
3831 | assert(IsSubroutine(function))(static_cast <bool> (IsSubroutine(function)) ? void (0) : __assert_fail ("IsSubroutine(function)", "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 3831, __extension__ __PRETTY_FUNCTION__)); | |||
3832 | for (DWARFDIE context = block; context != function.GetParent(); | |||
3833 | context = context.GetParent()) { | |||
3834 | assert(!IsSubroutine(context) || context == function)(static_cast <bool> (!IsSubroutine(context) || context == function) ? void (0) : __assert_fail ("!IsSubroutine(context) || context == function" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 3834, __extension__ __PRETTY_FUNCTION__)); | |||
3835 | if (DWARFDIE child = FindAnyChildWithAbstractOrigin(context)) { | |||
3836 | return child; | |||
3837 | } | |||
3838 | } | |||
3839 | return DWARFDIE(); | |||
3840 | } | |||
3841 | ||||
3842 | clang::DeclContext * | |||
3843 | DWARFASTParserClang::GetDeclContextForBlock(const DWARFDIE &die) { | |||
3844 | assert(die.Tag() == DW_TAG_lexical_block)(static_cast <bool> (die.Tag() == DW_TAG_lexical_block) ? void (0) : __assert_fail ("die.Tag() == DW_TAG_lexical_block" , "/build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp" , 3844, __extension__ __PRETTY_FUNCTION__)); | |||
3845 | DWARFDIE containing_function_with_abstract_origin = | |||
3846 | GetContainingFunctionWithAbstractOrigin(die); | |||
3847 | if (!containing_function_with_abstract_origin) { | |||
3848 | return (clang::DeclContext *)ResolveBlockDIE(die); | |||
3849 | } | |||
3850 | DWARFDIE child = FindFirstChildWithAbstractOrigin( | |||
3851 | die, containing_function_with_abstract_origin); | |||
3852 | CompilerDeclContext decl_context = | |||
3853 | GetDeclContextContainingUIDFromDWARF(child); | |||
3854 | return (clang::DeclContext *)decl_context.GetOpaqueDeclContext(); | |||
3855 | } | |||
3856 | ||||
3857 | clang::BlockDecl *DWARFASTParserClang::ResolveBlockDIE(const DWARFDIE &die) { | |||
3858 | if (die && die.Tag() == DW_TAG_lexical_block) { | |||
3859 | clang::BlockDecl *decl = | |||
3860 | llvm::cast_or_null<clang::BlockDecl>(m_die_to_decl_ctx[die.GetDIE()]); | |||
3861 | ||||
3862 | if (!decl) { | |||
3863 | DWARFDIE decl_context_die; | |||
3864 | clang::DeclContext *decl_context = | |||
3865 | GetClangDeclContextContainingDIE(die, &decl_context_die); | |||
3866 | decl = m_ast.CreateBlockDeclaration(decl_context); | |||
3867 | ||||
3868 | if (decl) | |||
3869 | LinkDeclContextToDIE((clang::DeclContext *)decl, die); | |||
3870 | } | |||
3871 | ||||
3872 | return decl; | |||
3873 | } | |||
3874 | return nullptr; | |||
3875 | } | |||
3876 | ||||
3877 | clang::NamespaceDecl * | |||
3878 | DWARFASTParserClang::ResolveNamespaceDIE(const DWARFDIE &die) { | |||
3879 | if (die && die.Tag() == DW_TAG_namespace) { | |||
3880 | // See if we already parsed this namespace DIE and associated it with a | |||
3881 | // uniqued namespace declaration | |||
3882 | clang::NamespaceDecl *namespace_decl = | |||
3883 | static_cast<clang::NamespaceDecl *>(m_die_to_decl_ctx[die.GetDIE()]); | |||
3884 | if (namespace_decl) | |||
3885 | return namespace_decl; | |||
3886 | else { | |||
3887 | const char *namespace_name = die.GetName(); | |||
3888 | clang::DeclContext *containing_decl_ctx = | |||
3889 | GetClangDeclContextContainingDIE(die, nullptr); | |||
3890 | namespace_decl = m_ast.GetUniqueNamespaceDeclaration(namespace_name, | |||
3891 | containing_decl_ctx); | |||
3892 | Log *log = | |||
3893 | nullptr; // (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO)); | |||
3894 | if (log) { | |||
3895 | SymbolFileDWARF *dwarf = die.GetDWARF(); | |||
3896 | if (namespace_name) { | |||
3897 | dwarf->GetObjectFile()->GetModule()->LogMessage( | |||
3898 | log, "ASTContext => %p: 0x%8.8" PRIx64"l" "x" | |||
3899 | ": DW_TAG_namespace with DW_AT_name(\"%s\") => " | |||
3900 | "clang::NamespaceDecl *%p (original = %p)", | |||
3901 | static_cast<void *>(m_ast.getASTContext()), die.GetID(), | |||
3902 | namespace_name, static_cast<void *>(namespace_decl), | |||
3903 | static_cast<void *>(namespace_decl->getOriginalNamespace())); | |||
3904 | } else { | |||
3905 | dwarf->GetObjectFile()->GetModule()->LogMessage( | |||
3906 | log, "ASTContext => %p: 0x%8.8" PRIx64"l" "x" | |||
3907 | ": DW_TAG_namespace (anonymous) => clang::NamespaceDecl *%p " | |||
3908 | "(original = %p)", | |||
3909 | static_cast<void *>(m_ast.getASTContext()), die.GetID(), | |||
3910 | static_cast<void *>(namespace_decl), | |||
3911 | static_cast<void *>(namespace_decl->getOriginalNamespace())); | |||
3912 | } | |||
3913 | } | |||
3914 | ||||
3915 | if (namespace_decl) | |||
3916 | LinkDeclContextToDIE((clang::DeclContext *)namespace_decl, die); | |||
3917 | return namespace_decl; | |||
3918 | } | |||
3919 | } | |||
3920 | return nullptr; | |||
3921 | } | |||
3922 | ||||
3923 | clang::DeclContext *DWARFASTParserClang::GetClangDeclContextContainingDIE( | |||
3924 | const DWARFDIE &die, DWARFDIE *decl_ctx_die_copy) { | |||
3925 | SymbolFileDWARF *dwarf = die.GetDWARF(); | |||
3926 | ||||
3927 | DWARFDIE decl_ctx_die = dwarf->GetDeclContextDIEContainingDIE(die); | |||
3928 | ||||
3929 | if (decl_ctx_die_copy) | |||
3930 | *decl_ctx_die_copy = decl_ctx_die; | |||
3931 | ||||
3932 | if (decl_ctx_die) { | |||
3933 | clang::DeclContext *clang_decl_ctx = | |||
3934 | GetClangDeclContextForDIE(decl_ctx_die); | |||
3935 | if (clang_decl_ctx) | |||
3936 | return clang_decl_ctx; | |||
3937 | } | |||
3938 | return m_ast.GetTranslationUnitDecl(); | |||
3939 | } | |||
3940 | ||||
3941 | clang::DeclContext * | |||
3942 | DWARFASTParserClang::GetCachedClangDeclContextForDIE(const DWARFDIE &die) { | |||
3943 | if (die) { | |||
3944 | DIEToDeclContextMap::iterator pos = m_die_to_decl_ctx.find(die.GetDIE()); | |||
3945 | if (pos != m_die_to_decl_ctx.end()) | |||
3946 | return pos->second; | |||
3947 | } | |||
3948 | return nullptr; | |||
3949 | } | |||
3950 | ||||
3951 | void DWARFASTParserClang::LinkDeclContextToDIE(clang::DeclContext *decl_ctx, | |||
3952 | const DWARFDIE &die) { | |||
3953 | m_die_to_decl_ctx[die.GetDIE()] = decl_ctx; | |||
3954 | // There can be many DIEs for a single decl context | |||
3955 | // m_decl_ctx_to_die[decl_ctx].insert(die.GetDIE()); | |||
3956 | m_decl_ctx_to_die.insert(std::make_pair(decl_ctx, die)); | |||
3957 | } | |||
3958 | ||||
3959 | bool DWARFASTParserClang::CopyUniqueClassMethodTypes( | |||
3960 | const DWARFDIE &src_class_die, const DWARFDIE &dst_class_die, | |||
3961 | lldb_private::Type *class_type, DWARFDIECollection &failures) { | |||
3962 | if (!class_type || !src_class_die || !dst_class_die) | |||
3963 | return false; | |||
3964 | if (src_class_die.Tag() != dst_class_die.Tag()) | |||
3965 | return false; | |||
3966 | ||||
3967 | // We need to complete the class type so we can get all of the method types | |||
3968 | // parsed so we can then unique those types to their equivalent counterparts | |||
3969 | // in "dst_cu" and "dst_class_die" | |||
3970 | class_type->GetFullCompilerType(); | |||
3971 | ||||
3972 | DWARFDIE src_die; | |||
3973 | DWARFDIE dst_die; | |||
3974 | UniqueCStringMap<DWARFDIE> src_name_to_die; | |||
3975 | UniqueCStringMap<DWARFDIE> dst_name_to_die; | |||
3976 | UniqueCStringMap<DWARFDIE> src_name_to_die_artificial; | |||
3977 | UniqueCStringMap<DWARFDIE> dst_name_to_die_artificial; | |||
3978 | for (src_die = src_class_die.GetFirstChild(); src_die.IsValid(); | |||
3979 | src_die = src_die.GetSibling()) { | |||
3980 | if (src_die.Tag() == DW_TAG_subprogram) { | |||
3981 | // Make sure this is a declaration and not a concrete instance by looking | |||
3982 | // for DW_AT_declaration set to 1. Sometimes concrete function instances | |||
3983 | // are placed inside the class definitions and shouldn't be included in | |||
3984 | // the list of things are are tracking here. | |||
3985 | if (src_die.GetAttributeValueAsUnsigned(DW_AT_declaration, 0) == 1) { | |||
3986 | const char *src_name = src_die.GetMangledName(); | |||
3987 | if (src_name) { | |||
3988 | ConstString src_const_name(src_name); | |||
3989 | if (src_die.GetAttributeValueAsUnsigned(DW_AT_artificial, 0)) | |||
3990 | src_name_to_die_artificial.Append(src_const_name, src_die); | |||
3991 | else | |||
3992 | src_name_to_die.Append(src_const_name, src_die); | |||
3993 | } | |||
3994 | } | |||
3995 | } | |||
3996 | } | |||
3997 | for (dst_die = dst_class_die.GetFirstChild(); dst_die.IsValid(); | |||
3998 | dst_die = dst_die.GetSibling()) { | |||
3999 | if (dst_die.Tag() == DW_TAG_subprogram) { | |||
4000 | // Make sure this is a declaration and not a concrete instance by looking | |||
4001 | // for DW_AT_declaration set to 1. Sometimes concrete function instances | |||
4002 | // are placed inside the class definitions and shouldn't be included in | |||
4003 | // the list of things are are tracking here. | |||
4004 | if (dst_die.GetAttributeValueAsUnsigned(DW_AT_declaration, 0) == 1) { | |||
4005 | const char *dst_name = dst_die.GetMangledName(); | |||
4006 | if (dst_name) { | |||
4007 | ConstString dst_const_name(dst_name); | |||
4008 | if (dst_die.GetAttributeValueAsUnsigned(DW_AT_artificial, 0)) | |||
4009 | dst_name_to_die_artificial.Append(dst_const_name, dst_die); | |||
4010 | else | |||
4011 | dst_name_to_die.Append(dst_const_name, dst_die); | |||
4012 | } | |||
4013 | } | |||
4014 | } | |||
4015 | } | |||
4016 | const uint32_t src_size = src_name_to_die.GetSize(); | |||
4017 | const uint32_t dst_size = dst_name_to_die.GetSize(); | |||
4018 | Log *log = nullptr; // (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO | | |||
4019 | // DWARF_LOG_TYPE_COMPLETION)); | |||
4020 | ||||
4021 | // Is everything kosher so we can go through the members at top speed? | |||
4022 | bool fast_path = true; | |||
4023 | ||||
4024 | if (src_size != dst_size) { | |||
4025 | if (src_size != 0 && dst_size != 0) { | |||
4026 | if (log) | |||
4027 | log->Printf("warning: trying to unique class DIE 0x%8.8x to 0x%8.8x, " | |||
4028 | "but they didn't have the same size (src=%d, dst=%d)", | |||
4029 | src_class_die.GetOffset(), dst_class_die.GetOffset(), | |||
4030 | src_size, dst_size); | |||
4031 | } | |||
4032 | ||||
4033 | fast_path = false; | |||
4034 | } | |||
4035 | ||||
4036 | uint32_t idx; | |||
4037 | ||||
4038 | if (fast_path) { | |||
4039 | for (idx = 0; idx < src_size; ++idx) { | |||
4040 | src_die = src_name_to_die.GetValueAtIndexUnchecked(idx); | |||
4041 | dst_die = dst_name_to_die.GetValueAtIndexUnchecked(idx); | |||
4042 | ||||
4043 | if (src_die.Tag() != dst_die.Tag()) { | |||
4044 | if (log) | |||
4045 | log->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, " | |||
4046 | "but 0x%8.8x (%s) tags didn't match 0x%8.8x (%s)", | |||
4047 | src_class_die.GetOffset(), dst_class_die.GetOffset(), | |||
4048 | src_die.GetOffset(), src_die.GetTagAsCString(), | |||
4049 | dst_die.GetOffset(), dst_die.GetTagAsCString()); | |||
4050 | fast_path = false; | |||
4051 | } | |||
4052 | ||||
4053 | const char *src_name = src_die.GetMangledName(); | |||
4054 | const char *dst_name = dst_die.GetMangledName(); | |||
4055 | ||||
4056 | // Make sure the names match | |||
4057 | if (src_name == dst_name || (strcmp(src_name, dst_name) == 0)) | |||
4058 | continue; | |||
4059 | ||||
4060 | if (log) | |||
4061 | log->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, " | |||
4062 | "but 0x%8.8x (%s) names didn't match 0x%8.8x (%s)", | |||
4063 | src_class_die.GetOffset(), dst_class_die.GetOffset(), | |||
4064 | src_die.GetOffset(), src_name, dst_die.GetOffset(), | |||
4065 | dst_name); | |||
4066 | ||||
4067 | fast_path = false; | |||
4068 | } | |||
4069 | } | |||
4070 | ||||
4071 | DWARFASTParserClang *src_dwarf_ast_parser = | |||
4072 | (DWARFASTParserClang *)src_die.GetDWARFParser(); | |||
4073 | DWARFASTParserClang *dst_dwarf_ast_parser = | |||
4074 | (DWARFASTParserClang *)dst_die.GetDWARFParser(); | |||
4075 | ||||
4076 | // Now do the work of linking the DeclContexts and Types. | |||
4077 | if (fast_path) { | |||
4078 | // We can do this quickly. Just run across the tables index-for-index | |||
4079 | // since we know each node has matching names and tags. | |||
4080 | for (idx = 0; idx < src_size; ++idx) { | |||
4081 | src_die = src_name_to_die.GetValueAtIndexUnchecked(idx); | |||
4082 | dst_die = dst_name_to_die.GetValueAtIndexUnchecked(idx); | |||
4083 | ||||
4084 | clang::DeclContext *src_decl_ctx = | |||
4085 | src_dwarf_ast_parser->m_die_to_decl_ctx[src_die.GetDIE()]; | |||
4086 | if (src_decl_ctx) { | |||
4087 | if (log) | |||
4088 | log->Printf("uniquing decl context %p from 0x%8.8x for 0x%8.8x", | |||
4089 | static_cast<void *>(src_decl_ctx), src_die.GetOffset(), | |||
4090 | dst_die.GetOffset()); | |||
4091 | dst_dwarf_ast_parser->LinkDeclContextToDIE(src_decl_ctx, dst_die); | |||
4092 | } else { | |||
4093 | if (log) | |||
4094 | log->Printf("warning: tried to unique decl context from 0x%8.8x for " | |||
4095 | "0x%8.8x, but none was found", | |||
4096 | src_die.GetOffset(), dst_die.GetOffset()); | |||
4097 | } | |||
4098 | ||||
4099 | Type *src_child_type = | |||
4100 | dst_die.GetDWARF()->GetDIEToType()[src_die.GetDIE()]; | |||
4101 | if (src_child_type) { | |||
4102 | if (log) | |||
4103 | log->Printf( | |||
4104 | "uniquing type %p (uid=0x%" PRIx64"l" "x" ") from 0x%8.8x for 0x%8.8x", | |||
4105 | static_cast<void *>(src_child_type), src_child_type->GetID(), | |||
4106 | src_die.GetOffset(), dst_die.GetOffset()); | |||
4107 | dst_die.GetDWARF()->GetDIEToType()[dst_die.GetDIE()] = src_child_type; | |||
4108 | } else { | |||
4109 | if (log) | |||
4110 | log->Printf("warning: tried to unique lldb_private::Type from " | |||
4111 | "0x%8.8x for 0x%8.8x, but none was found", | |||
4112 | src_die.GetOffset(), dst_die.GetOffset()); | |||
4113 | } | |||
4114 | } | |||
4115 | } else { | |||
4116 | // We must do this slowly. For each member of the destination, look up a | |||
4117 | // member in the source with the same name, check its tag, and unique them | |||
4118 | // if everything matches up. Report failures. | |||
4119 | ||||
4120 | if (!src_name_to_die.IsEmpty() && !dst_name_to_die.IsEmpty()) { | |||
4121 | src_name_to_die.Sort(); | |||
4122 | ||||
4123 | for (idx = 0; idx < dst_size; ++idx) { | |||
4124 | ConstString dst_name = dst_name_to_die.GetCStringAtIndex(idx); | |||
4125 | dst_die = dst_name_to_die.GetValueAtIndexUnchecked(idx); | |||
4126 | src_die = src_name_to_die.Find(dst_name, DWARFDIE()); | |||
4127 | ||||
4128 | if (src_die && (src_die.Tag() == dst_die.Tag())) { | |||
4129 | clang::DeclContext *src_decl_ctx = | |||
4130 | src_dwarf_ast_parser->m_die_to_decl_ctx[src_die.GetDIE()]; | |||
4131 | if (src_decl_ctx) { | |||
4132 | if (log) | |||
4133 | log->Printf("uniquing decl context %p from 0x%8.8x for 0x%8.8x", | |||
4134 | static_cast<void *>(src_decl_ctx), | |||
4135 | src_die.GetOffset(), dst_die.GetOffset()); | |||
4136 | dst_dwarf_ast_parser->LinkDeclContextToDIE(src_decl_ctx, dst_die); | |||
4137 | } else { | |||
4138 | if (log) | |||
4139 | log->Printf("warning: tried to unique decl context from 0x%8.8x " | |||
4140 | "for 0x%8.8x, but none was found", | |||
4141 | src_die.GetOffset(), dst_die.GetOffset()); | |||
4142 | } | |||
4143 | ||||
4144 | Type *src_child_type = | |||
4145 | dst_die.GetDWARF()->GetDIEToType()[src_die.GetDIE()]; | |||
4146 | if (src_child_type) { | |||
4147 | if (log) | |||
4148 | log->Printf("uniquing type %p (uid=0x%" PRIx64"l" "x" | |||
4149 | ") from 0x%8.8x for 0x%8.8x", | |||
4150 | static_cast<void *>(src_child_type), | |||
4151 | src_child_type->GetID(), src_die.GetOffset(), | |||
4152 | dst_die.GetOffset()); | |||
4153 | dst_die.GetDWARF()->GetDIEToType()[dst_die.GetDIE()] = | |||
4154 | src_child_type; | |||
4155 | } else { | |||
4156 | if (log) | |||
4157 | log->Printf("warning: tried to unique lldb_private::Type from " | |||
4158 | "0x%8.8x for 0x%8.8x, but none was found", | |||
4159 | src_die.GetOffset(), dst_die.GetOffset()); | |||
4160 | } | |||
4161 | } else { | |||
4162 | if (log) | |||
4163 | log->Printf("warning: couldn't find a match for 0x%8.8x", | |||
4164 | dst_die.GetOffset()); | |||
4165 | ||||
4166 | failures.Append(dst_die); | |||
4167 | } | |||
4168 | } | |||
4169 | } | |||
4170 | } | |||
4171 | ||||
4172 | const uint32_t src_size_artificial = src_name_to_die_artificial.GetSize(); | |||
4173 | const uint32_t dst_size_artificial = dst_name_to_die_artificial.GetSize(); | |||
4174 | ||||
4175 | if (src_size_artificial && dst_size_artificial) { | |||
4176 | dst_name_to_die_artificial.Sort(); | |||
4177 | ||||
4178 | for (idx = 0; idx < src_size_artificial; ++idx) { | |||
4179 | ConstString src_name_artificial = | |||
4180 | src_name_to_die_artificial.GetCStringAtIndex(idx); | |||
4181 | src_die = src_name_to_die_artificial.GetValueAtIndexUnchecked(idx); | |||
4182 | dst_die = | |||
4183 | dst_name_to_die_artificial.Find(src_name_artificial, DWARFDIE()); | |||
4184 | ||||
4185 | if (dst_die) { | |||
4186 | // Both classes have the artificial types, link them | |||
4187 | clang::DeclContext *src_decl_ctx = | |||
4188 | src_dwarf_ast_parser->m_die_to_decl_ctx[src_die.GetDIE()]; | |||
4189 | if (src_decl_ctx) { | |||
4190 | if (log) | |||
4191 | log->Printf("uniquing decl context %p from 0x%8.8x for 0x%8.8x", | |||
4192 | static_cast<void *>(src_decl_ctx), src_die.GetOffset(), | |||
4193 | dst_die.GetOffset()); | |||
4194 | dst_dwarf_ast_parser->LinkDeclContextToDIE(src_decl_ctx, dst_die); | |||
4195 | } else { | |||
4196 | if (log) | |||
4197 | log->Printf("warning: tried to unique decl context from 0x%8.8x " | |||
4198 | "for 0x%8.8x, but none was found", | |||
4199 | src_die.GetOffset(), dst_die.GetOffset()); | |||
4200 | } | |||
4201 | ||||
4202 | Type *src_child_type = | |||
4203 | dst_die.GetDWARF()->GetDIEToType()[src_die.GetDIE()]; | |||
4204 | if (src_child_type) { | |||
4205 | if (log) | |||
4206 | log->Printf( | |||
4207 | "uniquing type %p (uid=0x%" PRIx64"l" "x" ") from 0x%8.8x for 0x%8.8x", | |||
4208 | static_cast<void *>(src_child_type), src_child_type->GetID(), | |||
4209 | src_die.GetOffset(), dst_die.GetOffset()); | |||
4210 | dst_die.GetDWARF()->GetDIEToType()[dst_die.GetDIE()] = src_child_type; | |||
4211 | } else { | |||
4212 | if (log) | |||
4213 | log->Printf("warning: tried to unique lldb_private::Type from " | |||
4214 | "0x%8.8x for 0x%8.8x, but none was found", | |||
4215 | src_die.GetOffset(), dst_die.GetOffset()); | |||
4216 | } | |||
4217 | } | |||
4218 | } | |||
4219 | } | |||
4220 | ||||
4221 | if (dst_size_artificial) { | |||
4222 | for (idx = 0; idx < dst_size_artificial; ++idx) { | |||
4223 | ConstString dst_name_artificial = | |||
4224 | dst_name_to_die_artificial.GetCStringAtIndex(idx); | |||
4225 | dst_die = dst_name_to_die_artificial.GetValueAtIndexUnchecked(idx); | |||
4226 | if (log) | |||
4227 | log->Printf("warning: need to create artificial method for 0x%8.8x for " | |||
4228 | "method '%s'", | |||
4229 | dst_die.GetOffset(), dst_name_artificial.GetCString()); | |||
4230 | ||||
4231 | failures.Append(dst_die); | |||
4232 | } | |||
4233 | } | |||
4234 | ||||
4235 | return (failures.Size() != 0); | |||
4236 | } |