64-bit time_t and __WORDSIZE_TIME64_COMPAT32

[Thorsten Kukuk]

On Wed, Feb 08, Andreas Schwab wrote:

> On Feb 08 2023, Thorsten Kukuk via Libc-alpha wrote:
> 
> > I think the only solution would be additional functions like for other
> > 32bit time_t functions and use symbol versioning for it?
> 
> That won't work as is because struct lastlog and struct utmp describe
> the layout of the lastlog and utmp/wtmp files.  That's the whole reason
> for the existence of the __WORDSIZE_TIME64_COMPAT32 knob.

That's solveable with e.g. creating a new name for them (.e.g
/run/utmp64 instead of /run/utmp)

  Thorsten

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Thorsten Kukuk, Distinguished Engineer, Senior Architect, Future Technologies
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