Re: [PATCH v2 0/5] Fix ELF / FDPIC ELF core dumping, and use mmap_sem properly in there

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To: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Subject: Re: [PATCH v2 0/5] Fix ELF / FDPIC ELF core dumping, and use mmap_sem properly in there
From: Nicolas Pitre <nico@xxxxxxxxxxx>
Date: Wed, 29 Apr 2020 21:27:47 -0400 (EDT)
Cc: Russell King - ARM Linux admin <linux@xxxxxxxxxxxxxxx>, Greg Ungerer <gerg@xxxxxxxxxxxxxx>, Jann Horn <jannh@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Christoph Hellwig <hch@xxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Linux-MM <linux-mm@xxxxxxxxx>, linux-fsdevel <linux-fsdevel@xxxxxxxxxxxxxxx>, Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>, "Eric W . Biederman" <ebiederm@xxxxxxxxxxxx>, Oleg Nesterov <oleg@xxxxxxxxxx>, Linux ARM <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, Mark Salter <msalter@xxxxxxxxxx>, Aurelien Jacquiot <jacquiot.aurelien@xxxxxxxxx>, linux-c6x-dev@xxxxxxxxxxxxx, Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>, Rich Felker <dalias@xxxxxxxx>, Linux-sh list <linux-sh@xxxxxxxxxxxxxxx>
In-reply-to: <CAHk-=wgpoEr33NJwQ+hqK1dz3Rs9jSw+BGotsSdt2Kb3HqLV7A@mail.gmail.com>
User-agent: Alpine 2.21 (LFD 202 2017-01-01)

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

References:
- [PATCH v2 0/5] Fix ELF / FDPIC ELF core dumping, and use mmap_sem properly in there
  - From: Jann Horn
- Re: [PATCH v2 0/5] Fix ELF / FDPIC ELF core dumping, and use mmap_sem properly in there
  - From: Russell King - ARM Linux admin
- Re: [PATCH v2 0/5] Fix ELF / FDPIC ELF core dumping, and use mmap_sem properly in there
  - From: Linus Torvalds

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