From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 20360 invoked by alias); 9 Oct 2018 18:53:59 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Received: (qmail 20097 invoked by uid 89); 9 Oct 2018 18:53:59 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-0.9 required=5.0 tests=BAYES_00,KAM_LAZY_DOMAIN_SECURITY,SPF_HELO_PASS autolearn=no version=3.3.2 spammy= X-HELO: mx1.redhat.com Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Tue, 09 Oct 2018 18:53:58 +0000 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 4632E30842CF; Tue, 9 Oct 2018 18:53:57 +0000 (UTC) Received: from [127.0.0.1] (ovpn04.gateway.prod.ext.ams2.redhat.com [10.39.146.4]) by smtp.corp.redhat.com (Postfix) with ESMTP id 966291001947; Tue, 9 Oct 2018 18:53:56 +0000 (UTC) Subject: Re: [PATCH] GDBSERVER: Listen on a unix domain (instead of TCP) socket if requested. To: John Darrington References: <20181009173257.11250-1-john@darrington.wattle.id.au> <20181009173257.11250-2-john@darrington.wattle.id.au> <20181009184124.bq2yx4qttsmj22t4@jocasta.intra> Cc: gdb-patches@sourceware.org From: Pedro Alves Message-ID: <84efe0c6-ce7e-9844-e7ad-83f0041435ec@redhat.com> Date: Tue, 09 Oct 2018 18:53:00 -0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20181009184124.bq2yx4qttsmj22t4@jocasta.intra> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-SW-Source: 2018-10/txt/msg00236.txt.bz2 On 10/09/2018 07:41 PM, John Darrington wrote: > On Tue, Oct 09, 2018 at 07:02:14PM +0100, Pedro Alves wrote: > On 10/09/2018 06:32 PM, John Darrington wrote: > > When invoking gdbserver, if the COMM parameter does not include a colon (:) and > > is not the name of an existing character device, then a local (unix) domain > > socket will be created with that name and gdbserver will listen for connections > > on that. > > Is that "colon/no-colon" magic something that tools frequently do? > > Not exactly. Tools with which I'm familiar with work as follows: > > :1234 Creates a unix domain socket on the local host called 1234 > localhost:1234 Listens on TCP port 1234 > > which is the way I think gdb ought to work, but this would be > inconsistent with it's current behaviour and cause confusion if somebody > used an old version of gdb with a new version of gdbserver or > vici-versa. In that example you didn't even pass a path to a unix domain socket. You let the tool create it, I suppose. It doesn't feel like apples to apples. In those tools you know, how would you pass the path to the local socket then? Thanks, Pedro Alves