https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82694
--- Comment #10 from amker at gcc dot gnu.org --- (In reply to amker from comment #9) > (In reply to Markus Trippelsdorf from comment #8) > > I think -fno-strict-overflow/-fwrapv should use the old behavior. > > The kernel really needs a flag to control pointer wrapping. > > Well, GCC doesn't provide such a flag now. Before the change, it was > -fno-strict-overflow/-fwrapv. And the support for wrapping pointer is far > from complete, that's one point of the change. Oh, sorry for mis-understanding, now I see you prefer to revert the change :)