[LinuxPPS] glibc STA_NANO fixes are now in glibc git

[Hal V. Engel]

On Thursday 07 May 2009 10:14:43 am Hal V. Engel wrote:
> On Thursday 07 May 2009 09:57:22 am Magnus Danielson wrote:
> > Udo van den Heuvel skrev:
snip
> > >
> > > PS: What about the sys/timex.h (glibc) changes needed for nano? Does
> > > anybody know if they 'landed' with the maintainer?
> >
> > I was just recalling this issue too. On the other hand one should maybe
> > ask the question if it is reasnoble that the linux-kernel and glibc
> > should require coordination like that. Wouldn't it be a better solution
> > to adjust the kernel timex.h such that glibc timex.h can wrap it with a
> > suitable #define such that copy-n-paste issues can be avoided?
> > This way would the actual definitions be in the linux kernel tree and
> > only conveyed thru to user-space programmers.
> > The glibc would then only need to supply the call wrappers and they
> > would require updates more rarely.
> >
> > Cheers,
> > Magnus
>
> I opened a bug report with the glibc maintainers about the middle of last
> year.  So they are aware of this but seem unable to figure out how to deal
> with the issue.  The bug is still open so at least they have not decided
> that it is invalid and I know that the maintainer has at least looked at in
> some detail.  I do agree with Magnus that the current way this is setup is
> probably a design flaw and this is probably why it is taking so long to
> resolve.  In addition any fix has the potential to cause issues in existing
> user land applications so they are being very careful about making any
> changes (after this code has not be changed since kernel version 2.2).
>
> The other thing is that as far as I can determine the only user land app
> that uses this API is ntp so perhaps the best solution is to modify the ntp
> build so that it no longer uses glibc and instead builds against the kernel
> directly.
>
> Hal
 

The bug report has been closed as resolved and says that the changes went in 
April 21.  I had a look at glibc git and the STA_NANO changes are in 
sysdeps/unix/sysv/linux/sys/timex.h.  This should appear in new releases of 
glibc at some point down the road.

Hal