On Mon, Dec 16, 2013 at 07:40:16PM +0100, Jakub Jelinek wrote:
It can be the last thing, sure. I think the still unimplemented and
potentially useful are the floating point overflow sanitization (haven't
looked yet what exactly it is, I suppose casts from floating point to
integers where the values are out of range, but dunno exactly) and
they have also some __builtin_object_size based bounds checking.
Oh, and then there is sanitization of nonnull arguments and returns_nonnull
return values which ideally we should add, clang doesn't have it (yet?), but
it is really desirable when we aggressively optimize based on those
attributes. We need to discuss with compiler-rt ubsan upstream first
though, unless we want to add the entrypoint as a GCC only libubsan addition.