[PATCH] provide y2038 safe socket constants

[Joseph Myers]

On Tue, 31 Mar 2020, Florian Weimer wrote:

> What about the parallel changes to the sysdeps overrides?  I would
> expect changes for hppa, mips, powerpc.  (Not sure about the alpha
> situation.)

This fix is only about the case where the *default* ABI in glibc requires 
these different values.

The header will need further changes (to use a conditional not based on 
__TIMESIZE) when _TIME_BITS=64 is supported on platforms that currently 
have 32-bit time_t.  That's the point at which changes for other 
architectures are needed - once we have an appropriate conditional for 
"the current compilation uses 64-bit time but kernel long is 32-bit" (or 
something like that).

I'm concerned the present patch is wrong for x32, however; that has 
__TIMESIZE == 64 && __WORDSIZE == 32 but should use the old values; the 
patch should be using __SYSCALL_WORDSIZE when available in place of 
__WORDSIZE.

-- 
Joseph S. Myers
joseph@codesourcery.com