linux-kernel - Re: [PATCH v2 0/5] Fix ELF / FDPIC ELF core dumping, and use mmap

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Message-ID: <nycvar.YSQ.7.76.2004292115050.2671@knanqh.ubzr>
Date:   Wed, 29 Apr 2020 21:27:47 -0400 (EDT)
From:   Nicolas Pitre <nico@...xnic.net>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
cc:     Russell King - ARM Linux admin <linux@...linux.org.uk>,
        Greg Ungerer <gerg@...ux-m68k.org>,
        Jann Horn <jannh@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Christoph Hellwig <hch@....de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        "Eric W . Biederman" <ebiederm@...ssion.com>,
        Oleg Nesterov <oleg@...hat.com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Mark Salter <msalter@...hat.com>,
        Aurelien Jacquiot <jacquiot.aurelien@...il.com>,
        linux-c6x-dev@...ux-c6x.org,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        Linux-sh list <linux-sh@...r.kernel.org>
Subject: Re: [PATCH v2 0/5] Fix ELF / FDPIC ELF core dumping, and use mmap_sem
 properly in there

On Wed, 29 Apr 2020, Linus Torvalds wrote:

> While we're at it, is there anybody who knows binfmt_flat?

I'd say Greg Ungerer.

> It might be Nicolas too.

I only contributed the necessary changes to make it work on targets with 
a MMU. Once fdpic started to worked I used that instead.

FWIW I couldn't find a toolchain that would produce FLAT binaries with 
dynamic libs on ARM so I only used static binaries.


Nicolas