linux-kernel - Re: [PATCH] m68k: Wire up clone3() syscall

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Message-ID: <CACz-3riWp1fWCaAJtMgRx9VRVAJ+ktdbAqHBobQUXR9XpHrVcQ@mail.gmail.com>
Date:   Tue, 26 Nov 2019 16:29:06 +0100
From:   Kars de Jong <jongk@...ux-m68k.org>
To:     Christian Brauner <christian.brauner@...ntu.com>
Cc:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "Linux/m68k" <linux-m68k@...r.kernel.org>
Subject: Re: [PATCH] m68k: Wire up clone3() syscall

Hi Christian!

Op di 26 nov. 2019 om 15:41 schreef Christian Brauner
<christian.brauner@...ntu.com>:
>
> On Mon, Nov 25, 2019 at 10:12:25AM +0100, Geert Uytterhoeven wrote:
> > Hi Kars,
> >
> > On Sun, Nov 24, 2019 at 8:52 PM Kars de Jong <jongk@...ux-m68k.org> wrote:
> > > Wire up the clone3() syscall for m68k. The special entry point is done in
> > > assembler as was done for clone() as well. This is needed because all
> > > registers need to be saved. The C wrapper then calls the generic
> > > sys_clone3() with the correct arguments.
> > >
> > > Tested on A1200 using the simple test program from:
> > >
> > >   https://lore.kernel.org/lkml/20190716130631.tohj4ub54md25dys@brauner.io/
>
> Please note that we now have a growing test-suite for the clone3()
> syscall under
> tools/testing/selftests/clone3/*
>
> You can test on a suitable kernel with
>
> make TARGETS=clone3 kselftest

I'm afraid my user space is almost prehistoric. I have a homebrewn
root filesystem of about 2001 vintage, and another one with Debian
3.1.
So until I have bootstrapped a more recent one, I'll leave that to others ;-)

Thanks for checking!

Kind regards,

Kars.