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From:   Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sun, 10 Mar 2019 15:40:20 -0700
Message-ID: <CAHk-=wgt7M6yA5BJCJo0nF22WgPJnN8CvViL9CAJmd+S+Civ6w@mail.gmail.com>
Subject: Re: [PATCH] x86: Deprecate a.out support
To:     Matt Turner <mattst88@gmail.com>
Cc:     Borislav Petkov <bp@alien8.de>,
        Alan Cox <gnomes@lxorguk.ukuu.org.uk>,
        Matthew Wilcox <willy@infradead.org>,
        Jann Horn <jannh@google.com>,
        Al Viro <viro@zeniv.linux.org.uk>,
        Thomas Gleixner <tglx@linutronix.de>,
        kernel list <linux-kernel@vger.kernel.org>,
        linux-fsdevel <linux-fsdevel@vger.kernel.org>,
        "the arch/x86 maintainers" <x86@kernel.org>,
        Linux API <linux-api@vger.kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Richard Weinberger <richard@nod.at>,
        Anton Ivanov <anton.ivanov@cambridgegreys.com>,
        linux-alpha <linux-alpha@vger.kernel.org>,
        linux-m68k@lists.linux-m68k.org
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--0000000000000c01730583c5259c
Content-Type: text/plain; charset="UTF-8"

On Sun, Mar 10, 2019 at 2:37 PM Matt Turner <mattst88@gmail.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.

So this attached patch does not compile on alpha, but it's been many
many years since I had an alpha to test with, so I'm stuck.

Matt, can you fill in the details and complete this patch?

                      Linus

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