uint64_t DWARFDebugInfoEntryMinimal::getAttributeValueAsUnsignedConstant(
const DWARFUnit *U, const uint16_t Attr, uint64_t FailValue) const {
DWARFFormValue FormValue;
if (!getAttributeValue(U, Attr, FormValue))
return FailValue;
Optional<uint64_t> Result = FormValue.getAsUnsignedConstant();
return Result.hasValue() ? Result.getValue() : FailValue;
}
static void dumpAttribute(raw_ostream &OS, const DWARFDie &Die,
uint32_t *OffsetPtr, dwarf::Attribute Attr,
dwarf::Form Form, unsigned Indent,
DIDumpOptions DumpOpts) {
if (!Die.isValid())
return;
const char BaseIndent[] = " ";
OS << BaseIndent;
OS.indent(Indent + 2);
WithColor(OS, HighlightColor::Attribute) << formatv("{0}", Attr);
if (DumpOpts.Verbose || DumpOpts.ShowForm)
OS << formatv(" [{0}]", Form);
DWARFUnit *U = Die.getDwarfUnit();
DWARFFormValue FormValue = DWARFFormValue::createFromUnit(Form, U, OffsetPtr);
OS << "\t(";
StringRef Name;
std::string File;
auto Color = HighlightColor::Enumerator;
if (Attr == DW_AT_decl_file || Attr == DW_AT_call_file) {
Color = HighlightColor::String;
if (const auto *LT = U->getContext().getLineTableForUnit(U))
if (LT->getFileNameByIndex(
FormValue.getAsUnsignedConstant().getValue(),
U->getCompilationDir(),
DILineInfoSpecifier::FileLineInfoKind::AbsoluteFilePath, File)) {
File = '"' + File + '"';
Name = File;
}
} else if (Optional<uint64_t> Val = FormValue.getAsUnsignedConstant())
Name = AttributeValueString(Attr, *Val);
if (!Name.empty())
WithColor(OS, Color) << Name;
else if (Attr == DW_AT_decl_line || Attr == DW_AT_call_line)
OS << *FormValue.getAsUnsignedConstant();
else if (Attr == DW_AT_high_pc && !DumpOpts.ShowForm && !DumpOpts.Verbose &&
FormValue.getAsUnsignedConstant()) {
if (DumpOpts.ShowAddresses) {
// Print the actual address rather than the offset.
uint64_t LowPC, HighPC, Index;
if (Die.getLowAndHighPC(LowPC, HighPC, Index))
OS << format("0x%016" PRIx64, HighPC);
else
FormValue.dump(OS, DumpOpts);
}
} else if (DWARFAttribute::mayHaveLocationDescription(Attr))
dumpLocation(OS, FormValue, U, sizeof(BaseIndent) + Indent + 4, DumpOpts);
else
FormValue.dump(OS, DumpOpts);
std::string Space = DumpOpts.ShowAddresses ? " " : "";
// We have dumped the attribute raw value. For some attributes
// having both the raw value and the pretty-printed value is
// interesting. These attributes are handled below.
if (Attr == DW_AT_specification || Attr == DW_AT_abstract_origin) {
if (const char *Name =
Die.getAttributeValueAsReferencedDie(FormValue).getName(
DINameKind::LinkageName))
OS << Space << "\"" << Name << '\"';
} else if (Attr == DW_AT_type) {
OS << Space << "\"";
dumpTypeName(OS, Die.getAttributeValueAsReferencedDie(FormValue));
OS << '"';
} else if (Attr == DW_AT_APPLE_property_attribute) {
if (Optional<uint64_t> OptVal = FormValue.getAsUnsignedConstant())
dumpApplePropertyAttribute(OS, *OptVal);
} else if (Attr == DW_AT_ranges) {
const DWARFObject &Obj = Die.getDwarfUnit()->getContext().getDWARFObj();
// For DW_FORM_rnglistx we need to dump the offset separately, since
// we have only dumped the index so far.
if (FormValue.getForm() == DW_FORM_rnglistx)
if (auto RangeListOffset =
U->getRnglistOffset(*FormValue.getAsSectionOffset())) {
DWARFFormValue FV = DWARFFormValue::createFromUValue(
dwarf::DW_FORM_sec_offset, *RangeListOffset);
FV.dump(OS, DumpOpts);
}
if (auto RangesOrError = Die.getAddressRanges())
dumpRanges(Obj, OS, RangesOrError.get(), U->getAddressByteSize(),
sizeof(BaseIndent) + Indent + 4, DumpOpts);
else
WithColor::error() << "decoding address ranges: "
<< toString(RangesOrError.takeError()) << '\n';
}
OS << ")\n";
}
