On 12 September 2016 at 16:04, Markus Armbruster <arm...@redhat.com> wrote: > If I remember correctly, we discussed -fno-strict-overflow (which the > kernel uses), but in the end opted for the more stringent -fwrapv.
Yep. -fno-strict-overflow just says "don't do bad things on integer overflow (but it's still a bug in the program if it happens)", so overflows are still program bugs and the compiler/sanitizer will still complain about them. You need -fwrapv to say "overflows aren't bugs at all". thanks -- PMM
