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llvm-dwarfdump: type unit dwo support

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198850 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2014-01-09 05:08:24 +00:00
parent 3ca4db23ed
commit a34ec4a961
4 changed files with 62 additions and 3 deletions
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39
lib/DebugInfo/DWARFContext.cpp
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@ -91,6 +91,13 @@ void DWARFContext::dump(raw_ostream &OS, DIDumpType DumpType) {
getTypeUnitAtIndex(i)->dump(OS);
}
if (DumpType == DIDT_All || DumpType == DIDT_TypesDwo)
if (getNumDWOTypeUnits()) {
OS << "\n.debug_types.dwo contents:\n";
for (unsigned i = 0, e = getNumDWOTypeUnits(); i != e; ++i)
getDWOTypeUnitAtIndex(i)->dump(OS);
}
if (DumpType == DIDT_All || DumpType == DIDT_Loc) {
OS << "\n.debug_loc contents:\n";
getDebugLoc()->dump(OS);
@ -333,6 +340,27 @@ void DWARFContext::parseDWOCompileUnits() {
}
}
void DWARFContext::parseDWOTypeUnits() {
const TypeSectionMap &Sections = getTypesDWOSections();
for (TypeSectionMap::const_iterator I = Sections.begin(), E = Sections.end();
I != E; ++I) {
uint32_t offset = 0;
const DataExtractor &DIData =
DataExtractor(I->second.Data, isLittleEndian(), 0);
while (DIData.isValidOffset(offset)) {
OwningPtr<DWARFTypeUnit> TU(new DWARFTypeUnit(
getDebugAbbrevDWO(), I->second.Data, getAbbrevDWOSection(),
getRangeDWOSection(), getStringDWOSection(),
getStringOffsetDWOSection(), getAddrSection(), &I->second.Relocs,
isLittleEndian()));
if (!TU->extract(DIData, &offset))
break;
DWOTUs.push_back(TU.take());
offset = DWOTUs.back()->getNextUnitOffset();
}
}
}
namespace {
struct OffsetComparator {
bool operator()(const DWARFCompileUnit *LHS,
@ -632,6 +660,8 @@ DWARFContextInMemory::DWARFContextInMemory(object::ObjectFile *Obj) :
// Find debug_types data by section rather than name as there are
// multiple, comdat grouped, debug_types sections.
TypesSections[*i].Data = data;
} else if (name == "debug_types.dwo") {
TypesDWOSections[*i].Data = data;
}
section_iterator RelocatedSection = i->getRelocatedSection();
@ -652,11 +682,14 @@ DWARFContextInMemory::DWARFContextInMemory(object::ObjectFile *Obj) :
.Case("debug_line", &LineSection.Relocs)
.Default(0);
if (!Map) {
if (RelSecName != "debug_types")
continue;
// Find debug_types relocs by section rather than name as there are
// multiple, comdat grouped, debug_types sections.
Map = &TypesSections[*RelocatedSection].Relocs;
if (RelSecName == "debug_types")
Map = &TypesSections[*RelocatedSection].Relocs;
else if (RelSecName == "debug_types.dwo")
Map = &TypesDWOSections[*RelocatedSection].Relocs;
else
continue;
}
if (i->begin_relocations() != i->end_relocations()) {