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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,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 76352C433E0 for ; Mon, 22 Feb 2021 20:12:49 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8818F64E2E for ; Mon, 22 Feb 2021 20:12:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8818F64E2E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=tls.msk.ru Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:60522 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lEHZW-00018B-8K for qemu-devel@archiver.kernel.org; Mon, 22 Feb 2021 15:12:46 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:38224) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lEHUm-0006yN-K9 for qemu-devel@nongnu.org; Mon, 22 Feb 2021 15:07:52 -0500 Received: from isrv.corpit.ru ([86.62.121.231]:58579) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lEHUk-0005vt-Kz for qemu-devel@nongnu.org; Mon, 22 Feb 2021 15:07:52 -0500 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 4D49940727; Mon, 22 Feb 2021 23:07:47 +0300 (MSK) Received: from [192.168.177.99] (mjt.vpn.tls.msk.ru [192.168.177.99]) by tsrv.corpit.ru (Postfix) with ESMTP id 58EBA8D; Mon, 22 Feb 2021 23:07:48 +0300 (MSK) Subject: Re: [PATCH] linux-user: manage binfmt-misc preserve-arg[0] flag To: Laurent Vivier , qemu-devel@nongnu.org References: <20210222105004.1642234-1-laurent@vivier.eu> <3b5b0aa0-6fde-3e71-0e69-6bf127e9c627@msgid.tls.msk.ru> <995d4f7d-3afc-f0f6-0a86-c1eb0488bfa1@vivier.eu> From: Michael Tokarev Message-ID: Date: Mon, 22 Feb 2021 23:07:47 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 MIME-Version: 1.0 In-Reply-To: <995d4f7d-3afc-f0f6-0a86-c1eb0488bfa1@vivier.eu> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: none client-ip=86.62.121.231; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Helge Deller , John Paul Adrian Glaubitz Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" 22.02.2021 20:09, Laurent Vivier wrote: >> Here it is: https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg04639.html >> > In this case, we don't want to modify QEMU to manage special case based on the binary name but > instead use a wrapper: A wrapper immediately defeats the purpose of the fix-binary flag, unfortunately, requiring the quemu-foo binary within the chroot again. Such a wrapper has been used for quite some time by Suse and others before the fix-binary flag appeared in kernel. It was the first approach I considered and rejected. Thanks, /mjt