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From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Thu, 15 Oct 2020 05:53:50 -0700
Message-ID: <CAMe9rOpK-d_0u08j7b5PecErpM+FDxK0cSYXwxG776RMXB8o0Q@mail.gmail.com>
Subject: PING^2: V4 [PATCH] x86: Initialize CPU info via IFUNC relocation [BZ
 26203]
To: Florian Weimer <fweimer@redhat.com>
Cc: "H.J. Lu via Libc-alpha" <libc-alpha@sourceware.org>
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On Thu, Oct 8, 2020 at 6:22 AM H.J. Lu <hjl.tools@gmail.com> wrote:
>
> On Thu, Oct 1, 2020 at 12:50 PM H.J. Lu <hjl.tools@gmail.com> wrote:
> >
> > On Thu, Oct 1, 2020 at 1:46 AM Florian Weimer <fweimer@redhat.com> wrot=
e:
> > >
> > > * H. J. Lu:
> > >
> > > > diff --git a/sysdeps/x86/cacheinfo.c b/sysdeps/x86/cacheinfo.c
> > > > index dadec5d58f..65ab29123d 100644
> > > > --- a/sysdeps/x86/cacheinfo.c
> > > > +++ b/sysdeps/x86/cacheinfo.c
> > > > @@ -16,7 +16,9 @@
> > > >     License along with the GNU C Library; if not, see
> > > >     <https://www.gnu.org/licenses/>.  */
> > > >
> > > > -#if IS_IN (libc)
> > > > +/* NB: In libc.a, this file is included in libc-static.c.  In libc=
.so,
> > > > +   this file is standalone.  */
> > > > +#if IS_IN (libc) && (defined SHARED || defined _PRIVATE_CPU_FEATUR=
ES_H)
> > >
> > > libc-static.c should be libc-start.c, I believe.  The =E2=80=9Cdefine=
d
> > > _PRIVATE_CPU_FEATURES_H=E2=80=9D part seems rather indirect.  What ex=
actly are
> > > you trying to accomplish here?
> > >
> > > It looks to me as if this file should included in libc.so, but not
> > > pulled into ld.so via the rebuild, so maybe you can add an empty
> > > sysdeps/x86/rtld-cacheinfo.c file instead?
> > >
> >
> > Here is the updated patch.   I also moved files around to prepare
> > for moving x86 processor cache info to cpu_features in ld.so to
> > support --list-tunables.
> >
>
> PING:
>
> https://sourceware.org/pipermail/libc-alpha/2020-October/118228.html
>

I will check it in tomorrow if there are no objections.

Thanks.

--=20
H.J.