[PATCH] Y2038: provide kernel support indication

[Joseph Myers]

On Tue, 25 Sep 2018, Arnd Bergmann wrote:

> riscv32 falls into this category: there is preliminary kernel support
> for it, but no upstream glibc. The riscv maintainers have indicated a
> preference that they would actually want to drop the 32-bit time_t
> syscalls from the kernel as well, since nobody is relying on them
> today. I don't think it makes a difference to glibc, so we'll discuss this
> among the kernel folks.
> 
> In general, we don't break established user ABIs as a rule, but we
> also have lots of precedent for changing interfaces when we are
> sure that there are no users that would complain about the change.

Depending on how long the glibc ports take to be ready (previously 
submitted, but without all the other upstream toolchain components being 
ready at the time), it could also apply to ARC and NDS32.  In the ARC 
case, the kernel port has been there for years, so unlike riscv32 I 
presume you couldn't remove the old syscalls from the kernel.

-- 
Joseph S. Myers
joseph@codesourcery.com