Re: [PATCH v1 3/8] selftests/nolibc: select_null: fix up for big endian powerpc64

From: Willy Tarreau
Date: Wed Jul 19 2023 - 16:25:24 EST


Hi Zhangjin,

On Wed, Jul 19, 2023 at 02:49:12PM +0800, Zhangjin Wu wrote:
> Hi, Willy
>
> > Hi Zhangjin,
> >
> > On Wed, Jul 19, 2023 at 07:56:37AM +0800, Zhangjin Wu wrote:
> > > It made me recalled I have at last disabled (not enabled for tinyconfig) the following options:
> > >
> > > CONFIG_ALTIVEC
> > > CONFIG_VSX --> This option enables kernel support for the Vector Scaler extensions
> > >
> > > Or we can disable the vsx instructions explicitly:
> > >
> > > -mno-vsx
> > >
> > > Both of them work well, but I prefer -mno-vsx for to get a faster build, what about you?
> > >
> > > +CFLAGS_powerpc64 = -m64 -mbig-endian -Wl,-EB,-melf64ppc -mno-vsx
> > > +CFLAGS_powerpc64le = -m64 -mlittle-endian -Wl,-EL,-melf64ppc -mno-vsx
> > >
> > > So, this patch itself is wrong, let's drop it from the next revision.
> >
> > Better explicitly disable it in the CFLAGS (2nd option) if we want to
> > make sure we don't want to rely on this, at least for portability
> > purposes.
>
> Ok, thanks, have updated CFLAGS in these two patches locally:
>
> [PATCH v1 7/8] selftests/nolibc: add test support for powerpc64le
> [PATCH v1 8/8] selftests/nolibc: add test support for powerpc64
>
> what about the other ones? I'm ready to send v2 ;-)

I have not had the time to review them yet. Please just don't send
another series yet, that just adds more noise and makes it hard to
distinguish all of them. I hope to be able to check these and hopefully
the tinyconfig series by the week-end.

Thanks,
Willy