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From: Arnd Bergmann <arnd@arndb.de>
To: Greg Ungerer <gregungerer00@gmail.com>
Cc: Jann Horn <jannh@google.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>,
	kernel list <linux-kernel@vger.kernel.org>,
	Kees Cook <keescook@chromium.org>,
	Nicolas Pitre <nicolas.pitre@linaro.org>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Linux/m68k <linux-m68k@vger.kernel.org>,
	Russell King <linux@armlinux.org.uk>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	Sergei Poselenov <sposelenov@emcraft.com>
Subject: Re: [PATCH] binfmt_flat: make load_flat_shared_library() work
Date: Wed, 29 May 2019 15:41:31 +0200	[thread overview]
Message-ID: <CAK8P3a0zj126XSGjMbiDJDkY8sF+6JNWH0VsJEUAga6OGHV0vg@mail.gmail.com> (raw)
In-Reply-To: <889fc718-b662-8235-5d60-9d330e77cf18@linux-m68k.org>

On Wed, May 29, 2019 at 2:29 PM Greg Ungerer <gregungerer00@gmail.com> wrote:
> On 29/5/19 10:05 pm, Arnd Bergmann wrote:
> > On Tue, May 28, 2019 at 12:56 PM Greg Ungerer <gerg@linux-m68k.org> wrote:
> >> On 27/5/19 11:38 pm, Jann Horn wrote:
> >>> On Sat, May 25, 2019 at 11:43 PM Andrew Morton
> >>> <akpm@linux-foundation.org> wrote:
> >>> Maybe... but I didn't want to rip it out without having one of the
> >>> maintainers confirm that this really isn't likely to be used anymore.
> >>
> >> I have not used shared libraries on m68k non-mmu setups for
> >> a very long time. At least 10 years I would think.
> >
> > I think Emcraft have a significant customer base running ARM NOMMU
> > Linux, I wonder whether they would have run into this (adding
> > Sergei to Cc).
> > My suspicion is that they use only binfmt-elf-fdpic, not binfmt-flat.
> >
> > The only architectures I see that enable binfmt-flat are sh, xtensa
> > and h8300, but only arch/sh uses CONFIG_BINFMT_SHARED_FLAT
>
> m68k uses enables it too. It is the only binary format supported
> when running no-mmu on m68k. (You can use it with MMU enabled too
> if you really want too).

My mistake, I meant to write 'the only architectures /other than m68k/",
which you had already mentioned above.

    Arnd

  reply	other threads:[~2019-05-29 13:41 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20190524201817.16509-1-jannh@google.com>
2019-05-25 21:43 ` [PATCH] binfmt_flat: make load_flat_shared_library() work Andrew Morton
2019-05-27 13:38   ` Jann Horn
2019-05-27 14:37     ` Nicolas Pitre
2019-05-28 10:56     ` Greg Ungerer
2019-05-29 11:52       ` Arnd Bergmann
2019-05-28 10:56     ` Greg Ungerer
2019-05-29 12:05       ` Arnd Bergmann
2019-05-29 12:29         ` Greg Ungerer
2019-05-29 13:41           ` Arnd Bergmann [this message]
2019-06-02  7:21         ` Sergei Poselenov
2019-05-29 12:32       ` John Paul Adrian Glaubitz
2019-05-29 12:38         ` Jann Horn
2019-05-29 12:47           ` John Paul Adrian Glaubitz
2019-05-29 12:40         ` Greg Ungerer
2019-05-29 13:16         ` Andreas Schwab
2019-05-29 13:18           ` John Paul Adrian Glaubitz

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