linux-kernel - Re: [PATCH] x86: Deprecate a.out support

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Message-ID: <CAEdQ38ESK4mz6T4=fO_1Zyg-jJfhR3A+jg2Nw0rMKq-p_1U0UA@mail.gmail.com>
Date:   Mon, 11 Mar 2019 11:58:26 -0700
From:   Matt Turner <mattst88@...il.com>
To:     Måns Rullgård <mans@...sr.com>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Borislav Petkov <bp@...en8.de>,
        Alan Cox <gnomes@...rguk.ukuu.org.uk>,
        Matthew Wilcox <willy@...radead.org>,
        Jann Horn <jannh@...gle.com>,
        Al Viro <viro@...iv.linux.org.uk>,
        Thomas Gleixner <tglx@...utronix.de>,
        kernel list <linux-kernel@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        Linux API <linux-api@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Richard Weinberger <richard@....at>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        linux-alpha <linux-alpha@...r.kernel.org>,
        linux-m68k@...ts.linux-m68k.org
Subject: Re: [PATCH] x86: Deprecate a.out support

On Mon, Mar 11, 2019 at 9:26 AM Måns Rullgård <mans@...sr.com> wrote:
>
> Linus Torvalds <torvalds@...ux-foundation.org> writes:
>
> > On Sun, Mar 10, 2019 at 2:37 PM Matt Turner <mattst88@...il.com> wrote:
> >>
> >> I'm not aware of a reason to keep a.out support on alpha.
> >
> > Hmm. I was looking at removing a.out support entirely, but it's
> > actually fairly incestuous on alpha.
> >
> > For example, arch/alpha/boot/tools/objstrip.c very much has some a.out
> > support in it. Maybe it can just be removed entirely.
> >
> > There's also an a.out.h include in arch/alpha/kernel/binfmt_loader.c.
> >
> > Finally, note that CONFIG_OSF4_COMPAT also no longer makes sense
> > without a.out support.
>
> Anyone running an Alpha machine likely also has some old OSF/1 binaries
> they may wish to use.  It would be a shame to remove this feature, IMO.

Tru64 5.1 uses ECOFF binaries, I believe. Do you know when OSF/1 /
Digital UNIX / Tru64 switched from a.out to ECOFF?