When getting the file name form the line table prologue we assume that a
valid string form value can always be extracted as a string. If you look
at the implementation of DWARFormValue this is not necessarily true. I
hit this assertion from LLDB when I create a "dummy" DWARFContext that
was missing the string section.
if (Kind == FileLineInfoKind::None || !hasFileAtIndex(FileIndex))
return false;
const FileNameEntry &Entry = getFileNameEntry(FileIndex);
- StringRef FileName = Entry.Name.getAsCString().getValue();
+ Optional<const char *> Name = Entry.Name.getAsCString();
+ if (!Name)
+ return false;
+ StringRef FileName = *Name;
if (Kind != FileLineInfoKind::AbsoluteFilePath ||
isPathAbsoluteOnWindowsOrPosix(FileName)) {
Result = FileName;