pthread_getaffinity_np issue

Jason Schulz schulz.j at gmail.com
Tue Sep 29 04:30:55 UTC 2015


On Fri, Sep 25, 2015 at 09:37:55AM -0700, John Baldwin wrote:
> On Thursday, September 24, 2015 10:26:23 PM Konstantin Belousov wrote:
> > So your issue only appears when you specify _XOPEN_SOURCE.  This is reasonable,
> > because __bitcount stuff in sys/types.h was put under _BSD_VISIBLE protection.
> > I am not sure why and I Cc:ed the author of the change.
> > 
> > IMO all symbols from __bitcount* are in the private namespace and could
> > be made unconditionally accessible, to avoid surprises.  I put the patch
> > at the end of the message which does this.
> 
> It was not on purpose, more to put it in the section with other "doodads".
> If it is safe to move out from under BSD_VISIBLE then your patch is fine
> with me.  The only person I can think to ask would be bde@, but my guess
> is your change is correct.
> 
> -- 
> John Baldwin


I tried the patch with _XOPEN_SOURCE=700 and the non-posix CPU_COUNT macro does
compile correctly now.  I didn't try with _POSIX_SOURCE, but I would guess it
should also compile.

If anyone wants me to test anything else with the patch, just let me know.  

-J


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