From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ABE75C83000 for ; Thu, 30 Apr 2020 01:27:55 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 548D220757 for ; Thu, 30 Apr 2020 01:27:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=pobox.com header.i=@pobox.com header.b="t5ZUcUUL"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=fluxnic.net header.i=@fluxnic.net header.b="YQPb/gU/" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 548D220757 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=fluxnic.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id DFF478E0005; Wed, 29 Apr 2020 21:27:54 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id DAFE08E0001; Wed, 29 Apr 2020 21:27:54 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C9E2F8E0005; Wed, 29 Apr 2020 21:27:54 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0046.hostedemail.com [216.40.44.46]) by kanga.kvack.org (Postfix) with ESMTP id AD9608E0001 for ; Wed, 29 Apr 2020 21:27:54 -0400 (EDT) Received: from smtpin03.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 6811B5DC6 for ; Thu, 30 Apr 2020 01:27:54 +0000 (UTC) X-FDA: 76762784868.03.force88_ac3347325e56 X-HE-Tag: force88_ac3347325e56 X-Filterd-Recvd-Size: 3806 Received: from pb-smtp20.pobox.com (pb-smtp20.pobox.com [173.228.157.52]) by imf19.hostedemail.com (Postfix) with ESMTP for ; Thu, 30 Apr 2020 01:27:53 +0000 (UTC) Received: from pb-smtp20.pobox.com (unknown [127.0.0.1]) by pb-smtp20.pobox.com (Postfix) with ESMTP id AD832CBCCA; Wed, 29 Apr 2020 21:27:52 -0400 (EDT) (envelope-from nico@fluxnic.net) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=pobox.com; h=date:from:to :cc:subject:in-reply-to:message-id:references:mime-version :content-type; s=sasl; bh=/7UUNjs0jgjJL33kO744X1Zmsy8=; b=t5ZUcU ULXz5TupELg+YI8bqonlpbi0vz/LeyzsjvgtaMd2YwOiqeHDtfJreis57QLu/KfQ R0XPOT4qFmVPwcEpNeJX0e1W+L2NeObuh0h4x+hvZA7WsV1BuxtZXT5Aqs1PN2/K FQ2KxlNR30C9bzZNezSrAlR7cBo8U4UUuU+Ns= Received: from pb-smtp20.sea.icgroup.com (unknown [127.0.0.1]) by pb-smtp20.pobox.com (Postfix) with ESMTP id A459FCBCC9; Wed, 29 Apr 2020 21:27:52 -0400 (EDT) (envelope-from nico@fluxnic.net) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=fluxnic.net; h=date:from:to:cc:subject:in-reply-to:message-id:references:mime-version:content-type; s=2016-12.pbsmtp; bh=CI/jtc3Zlelxj2BQukubtHMMJfB/+tA0KmygluxhJbA=; b=YQPb/gU/LhzfRx6zMbu+Zs1tlnMbPkPQGX+ngmjhwPGtUwYM7btvMITtaQqrB98Z4ol/vCX1ILq1cCfEPen/73hE+/Q5vml/duNEdm+ERBtA/8OI7IRyCtowoXWqN2OSzf/o//OSZh3+yrpf+HoBGWDKoxtfstaneOjI26SXqwk= Received: from yoda.home (unknown [24.203.50.76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by pb-smtp20.pobox.com (Postfix) with ESMTPSA id 992BECBCC8; Wed, 29 Apr 2020 21:27:49 -0400 (EDT) (envelope-from nico@fluxnic.net) Received: from xanadu.home (xanadu.home [192.168.2.2]) by yoda.home (Postfix) with ESMTPSA id B79A62DA0403; Wed, 29 Apr 2020 21:27:47 -0400 (EDT) Date: Wed, 29 Apr 2020 21:27:47 -0400 (EDT) From: Nicolas Pitre To: Linus Torvalds cc: Russell King - ARM Linux admin , Greg Ungerer , Jann Horn , Andrew Morton , Christoph Hellwig , Linux Kernel Mailing List , Linux-MM , linux-fsdevel , Alexander Viro , "Eric W . Biederman" , Oleg Nesterov , Linux ARM , Mark Salter , Aurelien Jacquiot , linux-c6x-dev@linux-c6x.org, Yoshinori Sato , Rich Felker , Linux-sh list Subject: Re: [PATCH v2 0/5] Fix ELF / FDPIC ELF core dumping, and use mmap_sem properly in there In-Reply-To: Message-ID: References: <20200429214954.44866-1-jannh@google.com> <20200429215620.GM1551@shell.armlinux.org.uk> User-Agent: Alpine 2.21 (LFD 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Pobox-Relay-ID: CDCE5890-8A81-11EA-B000-B0405B776F7B-78420484!pb-smtp20.pobox.com X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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