linux-kernel - Re: [PATCH rcu 15/18] torture: Add init-program support for loongarch

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Message-ID: <b6283b82-8a65-4455-8bbf-d597efc26402@paulmck-laptop>
Date:   Tue, 18 Jul 2023 11:41:50 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     Feiyang Chen <chris.chenfeiyang@...il.com>
Cc:     rcu@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-team@...a.com, rostedt@...dmis.org,
        Feiyang Chen <chenfeiyang@...ngson.cn>,
        Huacai Chen <chenhuacai@...ngson.cn>, Willy Tarreau <w@....eu>
Subject: Re: [PATCH rcu 15/18] torture: Add init-program support for loongarch

On Tue, Jul 18, 2023 at 10:56:06AM +0800, Feiyang Chen wrote:
> On Tue, Jul 18, 2023 at 2:23 AM Paul E. McKenney <paulmck@...nel.org> wrote:
> >
> > This commit adds the __loongarch__, __loongarch_lp64, and
> > __loongarch_double_float targets to rcutorture's mkinitrd.sh
> > script in order to allow nolibc init programs for loongarch.
> >
> > Cc: Feiyang Chen <chenfeiyang@...ngson.cn>
> > Cc: Huacai Chen <chenhuacai@...ngson.cn>
> > Cc: Willy Tarreau <w@....eu>
> > Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
> > ---
> >  tools/testing/selftests/rcutorture/bin/mkinitrd.sh | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/tools/testing/selftests/rcutorture/bin/mkinitrd.sh b/tools/testing/selftests/rcutorture/bin/mkinitrd.sh
> > index 3af3a86a0091..e7e23615dbe3 100755
> > --- a/tools/testing/selftests/rcutorture/bin/mkinitrd.sh
> > +++ b/tools/testing/selftests/rcutorture/bin/mkinitrd.sh
> > @@ -63,7 +63,8 @@ ___EOF___
> >  # build using nolibc on supported archs (smaller executable) and fall
> >  # back to regular glibc on other ones.
> >  if echo -e "#if __x86_64__||__i386__||__i486__||__i586__||__i686__" \
> > -           "||__ARM_EABI__||__aarch64__||__s390x__\nyes\n#endif" \
> > +           "||__ARM_EABI__||__aarch64__||__s390x__"\
> > +          "||__loongarch__||__loongarch_lp64||__loongarch_double_float\nyes\n#endif" \
> 
> Hi, Paul,
> 
> Thank you for the patch, but I believe adding only the __loongarch__
> should be sufficient.

Very well, I will remove the others on my next rebase with attribution.

And thank you for looking this over!  Especially as I have no way
to test it.  ;-)

							Thanx, Paul

> Thanks,
> Feiyang
> 
> >     | ${CROSS_COMPILE}gcc -E -nostdlib -xc - \
> >     | grep -q '^yes'; then
> >         # architecture supported by nolibc
> > --
> > 2.40.1