Dave Hansen <dave.han...@linux.intel.com> writes: > On 12/29/2014 04:52 PM, Andy Lutomirski wrote: >> This has the benefit the it avoids cluttering prctl with more >> arch-specific functionality. The down side is that arch_prctl will >> need to be wired up as a 32-bit syscall to add 32-bit support for >> MPX. > > There is existing userspace out there which depends on the existing > prctl() setup. There isn't a _lot_ and it might still be able to be > changed easily, but this isn't a given. > > I'll check in with the folks doing the gcc (runtime) part of this next > week and see what they think.
It'll be quite messy for 32bit because they would need to use syscall(), as glibc won't have a arch_prctl stub. -Andi -- a...@linux.intel.com -- Speaking for myself only -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
