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-rw-r--r--llvm/lib/DebugInfo/DWARFContext.cpp64
-rw-r--r--llvm/lib/DebugInfo/DWARFUnit.cpp15
-rw-r--r--llvm/lib/DebugInfo/DWARFUnit.h33
3 files changed, 50 insertions, 62 deletions
diff --git a/llvm/lib/DebugInfo/DWARFContext.cpp b/llvm/lib/DebugInfo/DWARFContext.cpp
index 819fc142e50..39799f0b235 100644
--- a/llvm/lib/DebugInfo/DWARFContext.cpp
+++ b/llvm/lib/DebugInfo/DWARFContext.cpp
@@ -314,84 +314,28 @@ DWARFContext::getLineTableForUnit(DWARFUnit *cu) {
}
void DWARFContext::parseCompileUnits() {
- if (!CUs.empty())
- return;
- uint32_t offset = 0;
- const DataExtractor &DIData = DataExtractor(getInfoSection().Data,
- isLittleEndian(), 0);
- while (DIData.isValidOffset(offset)) {
- std::unique_ptr<DWARFCompileUnit> CU(new DWARFCompileUnit(*this,
- getDebugAbbrev(), getInfoSection().Data, getRangeSection(),
- getStringSection(), StringRef(), getAddrSection(),
- &getInfoSection().Relocs, isLittleEndian(), CUs));
- if (!CU->extract(DIData, &offset)) {
- break;
- }
- CUs.push_back(std::move(CU));
- offset = CUs.back()->getNextUnitOffset();
- }
+ CUs.parse(*this, getInfoSection().Data, getInfoSection().Relocs);
}
void DWARFContext::parseTypeUnits() {
if (!TUs.empty())
return;
for (const auto &I : getTypesSections()) {
- uint32_t offset = 0;
- const DataExtractor &DIData =
- DataExtractor(I.second.Data, isLittleEndian(), 0);
TUs.push_back(DWARFUnitSection<DWARFTypeUnit>());
- auto &TUS = TUs.back();
- while (DIData.isValidOffset(offset)) {
- std::unique_ptr<DWARFTypeUnit> TU(new DWARFTypeUnit(*this,
- getDebugAbbrev(), I.second.Data, getRangeSection(),
- getStringSection(), StringRef(), getAddrSection(),
- &I.second.Relocs, isLittleEndian(), TUS));
- if (!TU->extract(DIData, &offset))
- break;
- TUS.push_back(std::move(TU));
- offset = TUS.back()->getNextUnitOffset();
- }
+ TUs.back().parse(*this, I.second.Data, I.second.Relocs);
}
}
void DWARFContext::parseDWOCompileUnits() {
- if (!DWOCUs.empty())
- return;
- uint32_t offset = 0;
- const DataExtractor &DIData =
- DataExtractor(getInfoDWOSection().Data, isLittleEndian(), 0);
- while (DIData.isValidOffset(offset)) {
- std::unique_ptr<DWARFCompileUnit> DWOCU(new DWARFCompileUnit(*this,
- getDebugAbbrevDWO(), getInfoDWOSection().Data, getRangeDWOSection(),
- getStringDWOSection(), getStringOffsetDWOSection(), getAddrSection(),
- &getInfoDWOSection().Relocs, isLittleEndian(), DWOCUs));
- if (!DWOCU->extract(DIData, &offset)) {
- break;
- }
- DWOCUs.push_back(std::move(DWOCU));
- offset = DWOCUs.back()->getNextUnitOffset();
- }
+ DWOCUs.parseDWO(*this, getInfoDWOSection().Data, getInfoDWOSection().Relocs);
}
void DWARFContext::parseDWOTypeUnits() {
if (!DWOTUs.empty())
return;
for (const auto &I : getTypesDWOSections()) {
- uint32_t offset = 0;
- const DataExtractor &DIData =
- DataExtractor(I.second.Data, isLittleEndian(), 0);
DWOTUs.push_back(DWARFUnitSection<DWARFTypeUnit>());
- auto &TUS = DWOTUs.back();
- while (DIData.isValidOffset(offset)) {
- std::unique_ptr<DWARFTypeUnit> TU(new DWARFTypeUnit(*this,
- getDebugAbbrevDWO(), I.second.Data, getRangeDWOSection(),
- getStringDWOSection(), getStringOffsetDWOSection(), getAddrSection(),
- &I.second.Relocs, isLittleEndian(), TUS));
- if (!TU->extract(DIData, &offset))
- break;
- TUS.push_back(std::move(TU));
- offset = TUS.back()->getNextUnitOffset();
- }
+ DWOTUs.back().parseDWO(*this, I.second.Data, I.second.Relocs);
}
}
diff --git a/llvm/lib/DebugInfo/DWARFUnit.cpp b/llvm/lib/DebugInfo/DWARFUnit.cpp
index faf385c1474..46a765c7046 100644
--- a/llvm/lib/DebugInfo/DWARFUnit.cpp
+++ b/llvm/lib/DebugInfo/DWARFUnit.cpp
@@ -17,6 +17,21 @@
using namespace llvm;
using namespace dwarf;
+
+void DWARFUnitSectionBase::parse(DWARFContext &C, StringRef SectionData,
+ const RelocAddrMap &Map) {
+ parseImpl(C, C.getDebugAbbrev(), SectionData, C.getRangeSection(),
+ C.getStringSection(), StringRef(), C.getAddrSection(), Map,
+ C.isLittleEndian());
+}
+
+void DWARFUnitSectionBase::parseDWO(DWARFContext &C, StringRef SectionData,
+ const RelocAddrMap &Map) {
+ parseImpl(C, C.getDebugAbbrevDWO(), SectionData, C.getRangeDWOSection(),
+ C.getStringDWOSection(), C.getStringOffsetDWOSection(),
+ C.getAddrSection(), Map, C.isLittleEndian());
+}
+
DWARFUnit::DWARFUnit(DWARFContext &DC, const DWARFDebugAbbrev *DA,
StringRef IS, StringRef RS, StringRef SS, StringRef SOS,
StringRef AOS, const RelocAddrMap *M, bool LE,
diff --git a/llvm/lib/DebugInfo/DWARFUnit.h b/llvm/lib/DebugInfo/DWARFUnit.h
index 9762f65491b..a57bead4750 100644
--- a/llvm/lib/DebugInfo/DWARFUnit.h
+++ b/llvm/lib/DebugInfo/DWARFUnit.h
@@ -36,7 +36,15 @@ public:
/// same section this Unit originated from.
virtual DWARFUnit *getUnitForOffset(uint32_t Offset) const = 0;
+ void parse(DWARFContext &C, StringRef SectionData, const RelocAddrMap &Map);
+ void parseDWO(DWARFContext &C, StringRef SectionData, const RelocAddrMap &Map);
+
protected:
+ virtual void parseImpl(DWARFContext &Context, const DWARFDebugAbbrev *DA,
+ StringRef Section, StringRef RS, StringRef SS,
+ StringRef SOS, StringRef AOS, const RelocAddrMap &M,
+ bool isLittleEndian) = 0;
+
~DWARFUnitSectionBase() {}
};
@@ -52,10 +60,12 @@ class DWARFUnitSection final : public SmallVector<std::unique_ptr<UnitType>, 1>,
}
};
+ bool Parsed;
+
public:
- DWARFUnitSection() {}
+ DWARFUnitSection() : Parsed(false) {}
DWARFUnitSection(DWARFUnitSection &&DUS) :
- SmallVector<std::unique_ptr<UnitType>, 1>(std::move(DUS)) {}
+ SmallVector<std::unique_ptr<UnitType>, 1>(std::move(DUS)), Parsed(DUS.Parsed) {}
typedef llvm::SmallVectorImpl<std::unique_ptr<UnitType>> UnitVector;
typedef typename UnitVector::iterator iterator;
@@ -68,6 +78,25 @@ public:
return CU->get();
return nullptr;
}
+
+ private:
+ void parseImpl(DWARFContext &Context, const DWARFDebugAbbrev *DA,
+ StringRef Section, StringRef RS, StringRef SS, StringRef SOS,
+ StringRef AOS, const RelocAddrMap &M, bool LE) override {
+ if (Parsed)
+ return;
+ DataExtractor Data(Section, LE, 0);
+ uint32_t Offset = 0;
+ while (Data.isValidOffset(Offset)) {
+ auto U = make_unique<UnitType>(Context, DA, Section, RS, SS, SOS, AOS, &M,
+ Data.isLittleEndian(), *this);
+ if (!U->extract(Data, &Offset))
+ break;
+ this->push_back(std::move(U));
+ Offset = this->back()->getNextUnitOffset();
+ }
+ Parsed = true;
+ }
};
class DWARFUnit {
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