static void dumpLocation(raw_ostream &OS, DWARFFormValue &FormValue,
DWARFUnit *U, unsigned Indent,
DIDumpOptions DumpOpts) {
DWARFContext &Ctx = U->getContext();
const DWARFObject &Obj = Ctx.getDWARFObj();
const MCRegisterInfo *MRI = Ctx.getRegisterInfo();
if (FormValue.isFormClass(DWARFFormValue::FC_Block) ||
FormValue.isFormClass(DWARFFormValue::FC_Exprloc)) {
ArrayRef<uint8_t> Expr = *FormValue.getAsBlock();
DataExtractor Data(StringRef((const char *)Expr.data(), Expr.size()),
Ctx.isLittleEndian(), 0);
DWARFExpression(Data, U->getVersion(), U->getAddressByteSize())
.print(OS, MRI);
return;
}
FormValue.dump(OS, DumpOpts);
if (FormValue.isFormClass(DWARFFormValue::FC_SectionOffset)) {
const DWARFSection &LocSection = Obj.getLocSection();
const DWARFSection &LocDWOSection = Obj.getLocDWOSection();
uint32_t Offset = *FormValue.getAsSectionOffset();
if (!LocSection.Data.empty()) {
DWARFDebugLoc DebugLoc;
DWARFDataExtractor Data(Obj, LocSection, Ctx.isLittleEndian(),
Obj.getAddressSize());
auto LL = DebugLoc.parseOneLocationList(Data, &Offset);
if (LL) {
uint64_t BaseAddr = 0;
if (Optional<BaseAddress> BA = U->getBaseAddress())
BaseAddr = BA->Address;
LL->dump(OS, Ctx.isLittleEndian(), Obj.getAddressSize(), MRI, BaseAddr,
Indent);
} else
OS << "error extracting location list.";
} else if (!LocDWOSection.Data.empty()) {
DataExtractor Data(LocDWOSection.Data, Ctx.isLittleEndian(), 0);
auto LL = DWARFDebugLocDWO::parseOneLocationList(Data, &Offset);
if (LL)
LL->dump(OS, Ctx.isLittleEndian(), Obj.getAddressSize(), MRI, Indent);
else
OS << "error extracting location list.";
}
}
}
static void dumpLocation(raw_ostream &OS, DWARFFormValue &FormValue,
DWARFUnit *U, unsigned Indent,
DIDumpOptions DumpOpts) {
DWARFContext &Ctx = U->getContext();
const DWARFObject &Obj = Ctx.getDWARFObj();
const MCRegisterInfo *MRI = Ctx.getRegisterInfo();
if (FormValue.isFormClass(DWARFFormValue::FC_Block) ||
FormValue.isFormClass(DWARFFormValue::FC_Exprloc)) {
ArrayRef<uint8_t> Expr = *FormValue.getAsBlock();
DataExtractor Data(StringRef((const char *)Expr.data(), Expr.size()),
Ctx.isLittleEndian(), 0);
DWARFExpression(Data, U->getVersion(), U->getAddressByteSize())
.print(OS, MRI, U);
return;
}
FormValue.dump(OS, DumpOpts);
if (FormValue.isFormClass(DWARFFormValue::FC_SectionOffset)) {
uint32_t Offset = *FormValue.getAsSectionOffset();
if (!U->isDWOUnit() && !U->getLocSection()->Data.empty()) {
DWARFDebugLoc DebugLoc;
DWARFDataExtractor Data(Obj, *U->getLocSection(), Ctx.isLittleEndian(),
Obj.getAddressSize());
auto LL = DebugLoc.parseOneLocationList(Data, &Offset);
if (LL) {
uint64_t BaseAddr = 0;
if (Optional<object::SectionedAddress> BA = U->getBaseAddress())
BaseAddr = BA->Address;
LL->dump(OS, Ctx.isLittleEndian(), Obj.getAddressSize(), MRI, U,
BaseAddr, Indent);
} else
OS << "error extracting location list.";
return;
}
bool UseLocLists = !U->isDWOUnit();
StringRef LoclistsSectionData =
UseLocLists ? Obj.getLoclistsSection().Data : U->getLocSectionData();
if (!LoclistsSectionData.empty()) {
DataExtractor Data(LoclistsSectionData, Ctx.isLittleEndian(),
Obj.getAddressSize());
// Old-style location list were used in DWARF v4 (.debug_loc.dwo section).
// Modern locations list (.debug_loclists) are used starting from v5.
// Ideally we should take the version from the .debug_loclists section
// header, but using CU's version for simplicity.
auto LL = DWARFDebugLoclists::parseOneLocationList(
Data, &Offset, UseLocLists ? U->getVersion() : 4);
uint64_t BaseAddr = 0;
if (Optional<object::SectionedAddress> BA = U->getBaseAddress())
BaseAddr = BA->Address;
if (LL)
LL->dump(OS, BaseAddr, Ctx.isLittleEndian(), Obj.getAddressSize(), MRI,
U, Indent);
else
OS << "error extracting location list.";
}
}
}
