svn commit: r273601 - head/lib/libc/gen

Baptiste Daroussin bapt at FreeBSD.org
Sun Oct 26 00:17:10 UTC 2014


On Sat, Oct 25, 2014 at 07:42:44AM +0400, Andrey Chernov wrote:
> On 25.10.2014 6:21, Andrey Chernov wrote:
> > On 24.10.2014 23:55, John Baldwin wrote:
> >> Author: jhb
> >> Date: Fri Oct 24 19:55:49 2014
> >> New Revision: 273601
> >> URL: https://svnweb.freebsd.org/changeset/base/273601
> >>
> >> Log:
> >>   Don't reference sem(4) from the POSIX semaphore pages.  POSIX semaphores
> >>   were reimplemented using umtx in FreeBSD 9 and no longer use sem(4).
> > 
> > sem kernel module referenced in sem(4) uses the same uipc_sem.c file as
> > kernel's P1003_1B_SEMAPHORES option, so they both use the same code and
> > better be cross-linked since sem(4) explains how to turn it on.
> > 
> 
> From the first glance I can't determine, is libc implementation better
> than kernel one or not. BTW, firefox port still recommends sem_load="YES"
> 
Firefox still recommands sem_load because we still support FreeBSD 8.

regards,
Bapt
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