linux-kernel - Re: [PATCH] binfmt_flat: make load_flat_shared

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Message-ID: <7203be4f-cd4d-ef1a-f50f-223e17c8ca98@physik.fu-berlin.de>
Date:   Wed, 29 May 2019 14:47:13 +0200
From:   John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
To:     Jann Horn <jannh@...gle.com>
Cc:     Greg Ungerer <gerg@...ux-m68k.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        kernel list <linux-kernel@...r.kernel.org>,
        Kees Cook <keescook@...omium.org>,
        Nicolas Pitre <nicolas.pitre@...aro.org>,
        Arnd Bergmann <arnd@...db.de>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        linux-m68k@...r.kernel.org, Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] binfmt_flat: make load_flat_shared_library() work

On 5/29/19 2:38 PM, Jann Horn wrote:
>>> I have not used shared libraries on m68k non-mmu setups for
>>> a very long time. At least 10 years I would think.
>> We use shared libraries in Debian on m68k and Andreas Schwab uses them
>> on openSUSE/m68k.
> 
> And you're using FLAT shared libraries, not ELF / FDPIC ELF shared
> libraries? See <https://lore.kernel.org/lkml/20190524201817.16509-1-jannh@google.com/>
> for context - this thread is about CONFIG_BINFMT_SHARED_FLAT.

No, we're using ELF binaries only:

root@...man:~# grep CONFIG_BINFMT /boot/config-$(uname -r)
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_BINFMT_FLAT is not set
# CONFIG_BINFMT_AOUT is not set
CONFIG_BINFMT_MISC=m
root@...man:~#

Thanks,
Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@...ian.org
`. `'   Freie Universitaet Berlin - glaubitz@...sik.fu-berlin.de
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