From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 53624 invoked by alias); 9 Oct 2018 19:00:47 -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 53324 invoked by uid 89); 9 Oct 2018 19:00:32 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-2.5 required=5.0 tests=AWL,BAYES_00,SPF_PASS autolearn=ham version=3.3.2 spammy= X-HELO: jocasta.intra Received: from de.cellform.com (HELO jocasta.intra) (88.217.224.109) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Tue, 09 Oct 2018 19:00:31 +0000 Received: from jocasta.intra (localhost [127.0.0.1]) by jocasta.intra (8.15.2/8.15.2/Debian-8) with ESMTPS id w99J0OlW017596 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 9 Oct 2018 21:00:24 +0200 Received: (from john@localhost) by jocasta.intra (8.15.2/8.15.2/Submit) id w99J0NnZ017595; Tue, 9 Oct 2018 21:00:23 +0200 Date: Tue, 09 Oct 2018 19:00:00 -0000 From: John Darrington To: Pedro Alves Cc: John Darrington , gdb-patches@sourceware.org Subject: Re: [PATCH] GDBSERVER: Listen on a unix domain (instead of TCP) socket if requested. Message-ID: <20181009190023.6xmppigvvzjqtfzp@jocasta.intra> References: <20181009173257.11250-1-john@darrington.wattle.id.au> <20181009173257.11250-2-john@darrington.wattle.id.au> <20181009184124.bq2yx4qttsmj22t4@jocasta.intra> <84efe0c6-ce7e-9844-e7ad-83f0041435ec@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <84efe0c6-ce7e-9844-e7ad-83f0041435ec@redhat.com> User-Agent: NeoMutt/20170113 (1.7.2) X-SW-Source: 2018-10/txt/msg00237.txt.bz2 On Tue, Oct 09, 2018 at 07:53:55PM +0100, Pedro Alves wrote: 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? If you give no path, it'll refer to a socket in the current working directory. An example with a path would be :/tmp/this/socket