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223e47cc LB |
1 | //===-- DWARFDebugInfoEntry.cpp -------------------------------------------===// |
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 | ||
85aaf69f SL |
10 | #include "SyntaxHighlighting.h" |
11 | #include "llvm/DebugInfo/DWARFCompileUnit.h" | |
12 | #include "llvm/DebugInfo/DWARFContext.h" | |
13 | #include "llvm/DebugInfo/DWARFDebugAbbrev.h" | |
14 | #include "llvm/DebugInfo/DWARFDebugInfoEntry.h" | |
1a4d82fc | 15 | #include "llvm/DebugInfo/DWARFFormValue.h" |
85aaf69f | 16 | #include "llvm/Support/DataTypes.h" |
970d7e83 | 17 | #include "llvm/Support/Debug.h" |
223e47cc LB |
18 | #include "llvm/Support/Dwarf.h" |
19 | #include "llvm/Support/Format.h" | |
20 | #include "llvm/Support/raw_ostream.h" | |
21 | using namespace llvm; | |
22 | using namespace dwarf; | |
85aaf69f | 23 | using namespace syntax; |
1a4d82fc JJ |
24 | |
25 | // Small helper to extract a DIE pointed by a reference | |
26 | // attribute. It looks up the Unit containing the DIE and calls | |
27 | // DIE.extractFast with the right unit. Returns new unit on success, | |
28 | // nullptr otherwise. | |
29 | static const DWARFUnit *findUnitAndExtractFast(DWARFDebugInfoEntryMinimal &DIE, | |
30 | const DWARFUnit *Unit, | |
31 | uint32_t *Offset) { | |
32 | Unit = Unit->getUnitSection().getUnitForOffset(*Offset); | |
33 | return (Unit && DIE.extractFast(Unit, Offset)) ? Unit : nullptr; | |
34 | } | |
223e47cc | 35 | |
1a4d82fc | 36 | void DWARFDebugInfoEntryMinimal::dump(raw_ostream &OS, DWARFUnit *u, |
223e47cc LB |
37 | unsigned recurseDepth, |
38 | unsigned indent) const { | |
1a4d82fc | 39 | DataExtractor debug_info_data = u->getDebugInfoExtractor(); |
223e47cc LB |
40 | uint32_t offset = Offset; |
41 | ||
42 | if (debug_info_data.isValidOffset(offset)) { | |
43 | uint32_t abbrCode = debug_info_data.getULEB128(&offset); | |
85aaf69f | 44 | WithColor(OS, syntax::Address).get() << format("\n0x%8.8x: ", Offset); |
223e47cc | 45 | |
223e47cc LB |
46 | if (abbrCode) { |
47 | if (AbbrevDecl) { | |
85aaf69f SL |
48 | const char *tagString = TagString(getTag()); |
49 | if (tagString) | |
50 | WithColor(OS, syntax::Tag).get().indent(indent) << tagString; | |
51 | else | |
52 | WithColor(OS, syntax::Tag).get().indent(indent) << | |
53 | format("DW_TAG_Unknown_%x", getTag()); | |
54 | ||
223e47cc LB |
55 | OS << format(" [%u] %c\n", abbrCode, |
56 | AbbrevDecl->hasChildren() ? '*' : ' '); | |
57 | ||
970d7e83 | 58 | // Dump all data in the DIE for the attributes. |
1a4d82fc JJ |
59 | for (const auto &AttrSpec : AbbrevDecl->attributes()) { |
60 | dumpAttribute(OS, u, &offset, AttrSpec.Attr, AttrSpec.Form, indent); | |
223e47cc LB |
61 | } |
62 | ||
63 | const DWARFDebugInfoEntryMinimal *child = getFirstChild(); | |
64 | if (recurseDepth > 0 && child) { | |
65 | while (child) { | |
1a4d82fc | 66 | child->dump(OS, u, recurseDepth-1, indent+2); |
223e47cc LB |
67 | child = child->getSibling(); |
68 | } | |
69 | } | |
70 | } else { | |
71 | OS << "Abbreviation code not found in 'debug_abbrev' class for code: " | |
72 | << abbrCode << '\n'; | |
73 | } | |
74 | } else { | |
75 | OS.indent(indent) << "NULL\n"; | |
76 | } | |
77 | } | |
78 | } | |
79 | ||
85aaf69f SL |
80 | static void dumpApplePropertyAttribute(raw_ostream &OS, uint64_t Val) { |
81 | OS << " ("; | |
82 | do { | |
83 | uint64_t Shift = countTrailingZeros(Val); | |
84 | assert(Shift < 64 && "undefined behavior"); | |
85 | uint64_t Bit = 1ULL << Shift; | |
86 | if (const char *PropName = ApplePropertyString(Bit)) | |
87 | OS << PropName; | |
88 | else | |
89 | OS << format("DW_APPLE_PROPERTY_0x%" PRIx64, Bit); | |
90 | if (!(Val ^= Bit)) | |
91 | break; | |
92 | OS << ", "; | |
93 | } while (true); | |
94 | OS << ")"; | |
95 | } | |
96 | ||
97 | static void dumpRanges(raw_ostream &OS, const DWARFAddressRangesVector& Ranges, | |
98 | unsigned AddressSize, unsigned Indent) { | |
99 | if (Ranges.empty()) | |
100 | return; | |
101 | ||
102 | for (const auto &Range: Ranges) { | |
103 | OS << '\n'; | |
104 | OS.indent(Indent); | |
105 | OS << format("[0x%0*" PRIx64 " - 0x%0*" PRIx64 ")", | |
106 | AddressSize*2, Range.first, | |
107 | AddressSize*2, Range.second); | |
108 | } | |
109 | } | |
110 | ||
223e47cc | 111 | void DWARFDebugInfoEntryMinimal::dumpAttribute(raw_ostream &OS, |
1a4d82fc JJ |
112 | DWARFUnit *u, |
113 | uint32_t *offset_ptr, | |
114 | uint16_t attr, uint16_t form, | |
223e47cc | 115 | unsigned indent) const { |
85aaf69f SL |
116 | const char BaseIndent[] = " "; |
117 | OS << BaseIndent; | |
223e47cc LB |
118 | OS.indent(indent+2); |
119 | const char *attrString = AttributeString(attr); | |
120 | if (attrString) | |
85aaf69f | 121 | WithColor(OS, syntax::Attribute) << attrString; |
223e47cc | 122 | else |
85aaf69f SL |
123 | WithColor(OS, syntax::Attribute).get() << format("DW_AT_Unknown_%x", attr); |
124 | ||
223e47cc LB |
125 | const char *formString = FormEncodingString(form); |
126 | if (formString) | |
127 | OS << " [" << formString << ']'; | |
128 | else | |
129 | OS << format(" [DW_FORM_Unknown_%x]", form); | |
130 | ||
131 | DWARFFormValue formValue(form); | |
132 | ||
1a4d82fc | 133 | if (!formValue.extractValue(u->getDebugInfoExtractor(), offset_ptr, u)) |
223e47cc LB |
134 | return; |
135 | ||
136 | OS << "\t("; | |
1a4d82fc JJ |
137 | |
138 | const char *Name = nullptr; | |
139 | std::string File; | |
85aaf69f | 140 | auto Color = syntax::Enumerator; |
1a4d82fc | 141 | if (attr == DW_AT_decl_file || attr == DW_AT_call_file) { |
85aaf69f | 142 | Color = syntax::String; |
1a4d82fc JJ |
143 | if (const auto *LT = u->getContext().getLineTableForUnit(u)) |
144 | if (LT->getFileNameByIndex( | |
145 | formValue.getAsUnsignedConstant().getValue(), | |
146 | u->getCompilationDir(), | |
147 | DILineInfoSpecifier::FileLineInfoKind::AbsoluteFilePath, File)) { | |
148 | File = '"' + File + '"'; | |
149 | Name = File.c_str(); | |
223e47cc | 150 | } |
1a4d82fc JJ |
151 | } else if (Optional<uint64_t> Val = formValue.getAsUnsignedConstant()) |
152 | Name = AttributeValueString(attr, *Val); | |
153 | ||
85aaf69f SL |
154 | if (Name) |
155 | WithColor(OS, Color) << Name; | |
156 | else if (attr == DW_AT_decl_line || attr == DW_AT_call_line) | |
1a4d82fc | 157 | OS << *formValue.getAsUnsignedConstant(); |
85aaf69f | 158 | else |
1a4d82fc | 159 | formValue.dump(OS, u); |
85aaf69f SL |
160 | |
161 | // We have dumped the attribute raw value. For some attributes | |
162 | // having both the raw value and the pretty-printed value is | |
163 | // interesting. These attributes are handled below. | |
164 | if ((attr == DW_AT_specification || attr == DW_AT_abstract_origin) && | |
165 | // The signature references aren't handled. | |
166 | formValue.getForm() != DW_FORM_ref_sig8) { | |
167 | uint32_t Ref = formValue.getAsReference(u).getValue(); | |
168 | DWARFDebugInfoEntryMinimal DIE; | |
169 | if (const DWARFUnit *RefU = findUnitAndExtractFast(DIE, u, &Ref)) | |
170 | if (const char *Ref = DIE.getName(RefU, DINameKind::LinkageName)) | |
171 | OS << " \"" << Ref << '\"'; | |
172 | } else if (attr == DW_AT_APPLE_property_attribute) { | |
173 | if (Optional<uint64_t> OptVal = formValue.getAsUnsignedConstant()) | |
174 | dumpApplePropertyAttribute(OS, *OptVal); | |
175 | } else if (attr == DW_AT_ranges) { | |
176 | dumpRanges(OS, getAddressRanges(u), u->getAddressByteSize(), | |
177 | sizeof(BaseIndent)+indent+4); | |
223e47cc | 178 | } |
223e47cc | 179 | |
1a4d82fc JJ |
180 | OS << ")\n"; |
181 | } | |
223e47cc | 182 | |
1a4d82fc JJ |
183 | bool DWARFDebugInfoEntryMinimal::extractFast(const DWARFUnit *U, |
184 | uint32_t *OffsetPtr) { | |
185 | Offset = *OffsetPtr; | |
186 | DataExtractor DebugInfoData = U->getDebugInfoExtractor(); | |
187 | uint32_t UEndOffset = U->getNextUnitOffset(); | |
188 | if (Offset >= UEndOffset || !DebugInfoData.isValidOffset(Offset)) | |
189 | return false; | |
190 | uint64_t AbbrCode = DebugInfoData.getULEB128(OffsetPtr); | |
191 | if (0 == AbbrCode) { | |
192 | // NULL debug tag entry. | |
193 | AbbrevDecl = nullptr; | |
194 | return true; | |
195 | } | |
196 | AbbrevDecl = U->getAbbreviations()->getAbbreviationDeclaration(AbbrCode); | |
197 | if (nullptr == AbbrevDecl) { | |
198 | // Restore the original offset. | |
199 | *OffsetPtr = Offset; | |
200 | return false; | |
201 | } | |
202 | ArrayRef<uint8_t> FixedFormSizes = DWARFFormValue::getFixedFormSizes( | |
203 | U->getAddressByteSize(), U->getVersion()); | |
204 | assert(FixedFormSizes.size() > 0); | |
205 | ||
206 | // Skip all data in the .debug_info for the attributes | |
207 | for (const auto &AttrSpec : AbbrevDecl->attributes()) { | |
208 | uint16_t Form = AttrSpec.Form; | |
209 | ||
210 | uint8_t FixedFormSize = | |
211 | (Form < FixedFormSizes.size()) ? FixedFormSizes[Form] : 0; | |
212 | if (FixedFormSize) | |
213 | *OffsetPtr += FixedFormSize; | |
214 | else if (!DWARFFormValue::skipValue(Form, DebugInfoData, OffsetPtr, U)) { | |
215 | // Restore the original offset. | |
216 | *OffsetPtr = Offset; | |
217 | return false; | |
223e47cc LB |
218 | } |
219 | } | |
1a4d82fc | 220 | return true; |
223e47cc LB |
221 | } |
222 | ||
223 | bool DWARFDebugInfoEntryMinimal::isSubprogramDIE() const { | |
224 | return getTag() == DW_TAG_subprogram; | |
225 | } | |
226 | ||
227 | bool DWARFDebugInfoEntryMinimal::isSubroutineDIE() const { | |
228 | uint32_t Tag = getTag(); | |
229 | return Tag == DW_TAG_subprogram || | |
230 | Tag == DW_TAG_inlined_subroutine; | |
231 | } | |
232 | ||
1a4d82fc JJ |
233 | bool DWARFDebugInfoEntryMinimal::getAttributeValue( |
234 | const DWARFUnit *U, const uint16_t Attr, DWARFFormValue &FormValue) const { | |
235 | if (!AbbrevDecl) | |
236 | return false; | |
237 | ||
238 | uint32_t AttrIdx = AbbrevDecl->findAttributeIndex(Attr); | |
239 | if (AttrIdx == -1U) | |
240 | return false; | |
241 | ||
242 | DataExtractor DebugInfoData = U->getDebugInfoExtractor(); | |
243 | uint32_t DebugInfoOffset = getOffset(); | |
244 | ||
245 | // Skip the abbreviation code so we are at the data for the attributes | |
246 | DebugInfoData.getULEB128(&DebugInfoOffset); | |
247 | ||
248 | // Skip preceding attribute values. | |
249 | for (uint32_t i = 0; i < AttrIdx; ++i) { | |
250 | DWARFFormValue::skipValue(AbbrevDecl->getFormByIndex(i), | |
251 | DebugInfoData, &DebugInfoOffset, U); | |
223e47cc LB |
252 | } |
253 | ||
1a4d82fc JJ |
254 | FormValue = DWARFFormValue(AbbrevDecl->getFormByIndex(AttrIdx)); |
255 | return FormValue.extractValue(DebugInfoData, &DebugInfoOffset, U); | |
223e47cc LB |
256 | } |
257 | ||
1a4d82fc JJ |
258 | const char *DWARFDebugInfoEntryMinimal::getAttributeValueAsString( |
259 | const DWARFUnit *U, const uint16_t Attr, const char *FailValue) const { | |
260 | DWARFFormValue FormValue; | |
261 | if (!getAttributeValue(U, Attr, FormValue)) | |
262 | return FailValue; | |
263 | Optional<const char *> Result = FormValue.getAsCString(U); | |
264 | return Result.hasValue() ? Result.getValue() : FailValue; | |
223e47cc LB |
265 | } |
266 | ||
1a4d82fc JJ |
267 | uint64_t DWARFDebugInfoEntryMinimal::getAttributeValueAsAddress( |
268 | const DWARFUnit *U, const uint16_t Attr, uint64_t FailValue) const { | |
269 | DWARFFormValue FormValue; | |
270 | if (!getAttributeValue(U, Attr, FormValue)) | |
271 | return FailValue; | |
272 | Optional<uint64_t> Result = FormValue.getAsAddress(U); | |
273 | return Result.hasValue() ? Result.getValue() : FailValue; | |
223e47cc LB |
274 | } |
275 | ||
1a4d82fc JJ |
276 | uint64_t DWARFDebugInfoEntryMinimal::getAttributeValueAsUnsignedConstant( |
277 | const DWARFUnit *U, const uint16_t Attr, uint64_t FailValue) const { | |
278 | DWARFFormValue FormValue; | |
279 | if (!getAttributeValue(U, Attr, FormValue)) | |
280 | return FailValue; | |
281 | Optional<uint64_t> Result = FormValue.getAsUnsignedConstant(); | |
282 | return Result.hasValue() ? Result.getValue() : FailValue; | |
223e47cc LB |
283 | } |
284 | ||
1a4d82fc JJ |
285 | uint64_t DWARFDebugInfoEntryMinimal::getAttributeValueAsReference( |
286 | const DWARFUnit *U, const uint16_t Attr, uint64_t FailValue) const { | |
287 | DWARFFormValue FormValue; | |
288 | if (!getAttributeValue(U, Attr, FormValue)) | |
289 | return FailValue; | |
290 | Optional<uint64_t> Result = FormValue.getAsReference(U); | |
291 | return Result.hasValue() ? Result.getValue() : FailValue; | |
223e47cc LB |
292 | } |
293 | ||
1a4d82fc JJ |
294 | uint64_t DWARFDebugInfoEntryMinimal::getAttributeValueAsSectionOffset( |
295 | const DWARFUnit *U, const uint16_t Attr, uint64_t FailValue) const { | |
296 | DWARFFormValue FormValue; | |
297 | if (!getAttributeValue(U, Attr, FormValue)) | |
298 | return FailValue; | |
299 | Optional<uint64_t> Result = FormValue.getAsSectionOffset(); | |
300 | return Result.hasValue() ? Result.getValue() : FailValue; | |
223e47cc LB |
301 | } |
302 | ||
1a4d82fc JJ |
303 | uint64_t |
304 | DWARFDebugInfoEntryMinimal::getRangesBaseAttribute(const DWARFUnit *U, | |
305 | uint64_t FailValue) const { | |
306 | uint64_t Result = | |
307 | getAttributeValueAsSectionOffset(U, DW_AT_ranges_base, -1ULL); | |
308 | if (Result != -1ULL) | |
309 | return Result; | |
310 | return getAttributeValueAsSectionOffset(U, DW_AT_GNU_ranges_base, FailValue); | |
311 | } | |
223e47cc | 312 | |
1a4d82fc JJ |
313 | bool DWARFDebugInfoEntryMinimal::getLowAndHighPC(const DWARFUnit *U, |
314 | uint64_t &LowPC, | |
315 | uint64_t &HighPC) const { | |
316 | LowPC = getAttributeValueAsAddress(U, DW_AT_low_pc, -1ULL); | |
317 | if (LowPC == -1ULL) | |
318 | return false; | |
319 | HighPC = getAttributeValueAsAddress(U, DW_AT_high_pc, -1ULL); | |
320 | if (HighPC == -1ULL) { | |
321 | // Since DWARF4, DW_AT_high_pc may also be of class constant, in which case | |
322 | // it represents function size. | |
323 | HighPC = getAttributeValueAsUnsignedConstant(U, DW_AT_high_pc, -1ULL); | |
324 | if (HighPC != -1ULL) | |
325 | HighPC += LowPC; | |
223e47cc | 326 | } |
1a4d82fc | 327 | return (HighPC != -1ULL); |
223e47cc LB |
328 | } |
329 | ||
1a4d82fc JJ |
330 | DWARFAddressRangesVector |
331 | DWARFDebugInfoEntryMinimal::getAddressRanges(const DWARFUnit *U) const { | |
223e47cc | 332 | if (isNULL()) |
1a4d82fc JJ |
333 | return DWARFAddressRangesVector(); |
334 | // Single range specified by low/high PC. | |
223e47cc | 335 | uint64_t LowPC, HighPC; |
1a4d82fc JJ |
336 | if (getLowAndHighPC(U, LowPC, HighPC)) { |
337 | return DWARFAddressRangesVector(1, std::make_pair(LowPC, HighPC)); | |
338 | } | |
339 | // Multiple ranges from .debug_ranges section. | |
340 | uint32_t RangesOffset = | |
341 | getAttributeValueAsSectionOffset(U, DW_AT_ranges, -1U); | |
223e47cc LB |
342 | if (RangesOffset != -1U) { |
343 | DWARFDebugRangeList RangeList; | |
1a4d82fc JJ |
344 | if (U->extractRangeList(RangesOffset, RangeList)) |
345 | return RangeList.getAbsoluteRanges(U->getBaseAddress()); | |
346 | } | |
347 | return DWARFAddressRangesVector(); | |
348 | } | |
349 | ||
350 | void DWARFDebugInfoEntryMinimal::collectChildrenAddressRanges( | |
351 | const DWARFUnit *U, DWARFAddressRangesVector& Ranges) const { | |
352 | if (isNULL()) | |
353 | return; | |
354 | if (isSubprogramDIE()) { | |
355 | const auto &DIERanges = getAddressRanges(U); | |
356 | Ranges.insert(Ranges.end(), DIERanges.begin(), DIERanges.end()); | |
357 | } | |
358 | ||
359 | const DWARFDebugInfoEntryMinimal *Child = getFirstChild(); | |
360 | while (Child) { | |
361 | Child->collectChildrenAddressRanges(U, Ranges); | |
362 | Child = Child->getSibling(); | |
363 | } | |
364 | } | |
365 | ||
366 | bool DWARFDebugInfoEntryMinimal::addressRangeContainsAddress( | |
367 | const DWARFUnit *U, const uint64_t Address) const { | |
368 | for (const auto& R : getAddressRanges(U)) { | |
369 | if (R.first <= Address && Address < R.second) | |
370 | return true; | |
223e47cc LB |
371 | } |
372 | return false; | |
373 | } | |
374 | ||
1a4d82fc JJ |
375 | const char * |
376 | DWARFDebugInfoEntryMinimal::getSubroutineName(const DWARFUnit *U, | |
85aaf69f SL |
377 | DINameKind Kind) const { |
378 | if (!isSubroutineDIE()) | |
379 | return nullptr; | |
380 | return getName(U, Kind); | |
381 | } | |
382 | ||
383 | const char * | |
384 | DWARFDebugInfoEntryMinimal::getName(const DWARFUnit *U, | |
385 | DINameKind Kind) const { | |
386 | if (Kind == DINameKind::None) | |
1a4d82fc JJ |
387 | return nullptr; |
388 | // Try to get mangled name only if it was asked for. | |
85aaf69f | 389 | if (Kind == DINameKind::LinkageName) { |
1a4d82fc JJ |
390 | if (const char *name = |
391 | getAttributeValueAsString(U, DW_AT_MIPS_linkage_name, nullptr)) | |
392 | return name; | |
393 | if (const char *name = | |
394 | getAttributeValueAsString(U, DW_AT_linkage_name, nullptr)) | |
395 | return name; | |
396 | } | |
397 | if (const char *name = getAttributeValueAsString(U, DW_AT_name, nullptr)) | |
223e47cc LB |
398 | return name; |
399 | // Try to get name from specification DIE. | |
400 | uint32_t spec_ref = | |
1a4d82fc | 401 | getAttributeValueAsReference(U, DW_AT_specification, -1U); |
223e47cc LB |
402 | if (spec_ref != -1U) { |
403 | DWARFDebugInfoEntryMinimal spec_die; | |
1a4d82fc | 404 | if (const DWARFUnit *RefU = findUnitAndExtractFast(spec_die, U, &spec_ref)) { |
85aaf69f | 405 | if (const char *name = spec_die.getName(RefU, Kind)) |
223e47cc LB |
406 | return name; |
407 | } | |
408 | } | |
409 | // Try to get name from abstract origin DIE. | |
410 | uint32_t abs_origin_ref = | |
1a4d82fc | 411 | getAttributeValueAsReference(U, DW_AT_abstract_origin, -1U); |
223e47cc LB |
412 | if (abs_origin_ref != -1U) { |
413 | DWARFDebugInfoEntryMinimal abs_origin_die; | |
1a4d82fc JJ |
414 | if (const DWARFUnit *RefU = findUnitAndExtractFast(abs_origin_die, U, |
415 | &abs_origin_ref)) { | |
85aaf69f | 416 | if (const char *name = abs_origin_die.getName(RefU, Kind)) |
223e47cc LB |
417 | return name; |
418 | } | |
419 | } | |
1a4d82fc | 420 | return nullptr; |
223e47cc LB |
421 | } |
422 | ||
1a4d82fc | 423 | void DWARFDebugInfoEntryMinimal::getCallerFrame(const DWARFUnit *U, |
970d7e83 LB |
424 | uint32_t &CallFile, |
425 | uint32_t &CallLine, | |
426 | uint32_t &CallColumn) const { | |
1a4d82fc JJ |
427 | CallFile = getAttributeValueAsUnsignedConstant(U, DW_AT_call_file, 0); |
428 | CallLine = getAttributeValueAsUnsignedConstant(U, DW_AT_call_line, 0); | |
429 | CallColumn = getAttributeValueAsUnsignedConstant(U, DW_AT_call_column, 0); | |
223e47cc LB |
430 | } |
431 | ||
1a4d82fc | 432 | DWARFDebugInfoEntryInlinedChain |
223e47cc | 433 | DWARFDebugInfoEntryMinimal::getInlinedChainForAddress( |
1a4d82fc JJ |
434 | const DWARFUnit *U, const uint64_t Address) const { |
435 | DWARFDebugInfoEntryInlinedChain InlinedChain; | |
436 | InlinedChain.U = U; | |
223e47cc LB |
437 | if (isNULL()) |
438 | return InlinedChain; | |
439 | for (const DWARFDebugInfoEntryMinimal *DIE = this; DIE; ) { | |
440 | // Append current DIE to inlined chain only if it has correct tag | |
441 | // (e.g. it is not a lexical block). | |
442 | if (DIE->isSubroutineDIE()) { | |
1a4d82fc | 443 | InlinedChain.DIEs.push_back(*DIE); |
223e47cc LB |
444 | } |
445 | // Try to get child which also contains provided address. | |
446 | const DWARFDebugInfoEntryMinimal *Child = DIE->getFirstChild(); | |
447 | while (Child) { | |
1a4d82fc | 448 | if (Child->addressRangeContainsAddress(U, Address)) { |
223e47cc LB |
449 | // Assume there is only one such child. |
450 | break; | |
451 | } | |
452 | Child = Child->getSibling(); | |
453 | } | |
454 | DIE = Child; | |
455 | } | |
456 | // Reverse the obtained chain to make the root of inlined chain last. | |
1a4d82fc | 457 | std::reverse(InlinedChain.DIEs.begin(), InlinedChain.DIEs.end()); |
223e47cc LB |
458 | return InlinedChain; |
459 | } |