From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 42972 invoked by alias); 15 Apr 2015 12:16:28 -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 42961 invoked by uid 89); 15 Apr 2015 12:16:27 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=AWL,BAYES_00,SPF_HELO_PASS,SPF_PASS,T_RP_MATCHES_RCVD autolearn=ham version=3.3.2 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 (AES256-GCM-SHA384 encrypted) ESMTPS; Wed, 15 Apr 2015 12:16:27 +0000 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id t3FCGPPV030993 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Wed, 15 Apr 2015 08:16:25 -0400 Received: from [127.0.0.1] (ovpn01.gateway.prod.ext.ams2.redhat.com [10.39.146.11]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t3FCGN1G010103; Wed, 15 Apr 2015 08:16:24 -0400 Message-ID: <552E5697.9030409@redhat.com> Date: Wed, 15 Apr 2015 12:16:00 -0000 From: Pedro Alves User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 MIME-Version: 1.0 To: Gary Benson CC: gdb-patches@sourceware.org Subject: Re: [PATCH 0/7] Do not require "file" commands for remote targets References: <1427887341-31819-1-git-send-email-gbenson@redhat.com> <552E41B5.1000508@redhat.com> <20150415120237.GA32701@blade.nx> In-Reply-To: <20150415120237.GA32701@blade.nx> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-SW-Source: 2015-04/txt/msg00559.txt.bz2 On 04/15/2015 01:02 PM, Gary Benson wrote: > Pedro Alves wrote: >> On 04/01/2015 12:22 PM, Gary Benson wrote: >>> Patch 7 causes GDB to attempt to locate and open the executable >>> in remote-target cases without multiprocess extensions: >> >> Should be "with multiprocess extensions". Without those, we don't >> know the target's pid, and thus can't use pid-to-exec-file. > > How about: > > Patch 7 causes GDB to attempt to locate and open the executable > for remote targets not using extended-remote: That's better. Though it affects extended-remote just the same. E.g.,: $ gdbserver --multi :9999 /bin/sh ... (gdb) target extended-remote :9999 ... Reading symbols from target:/bin/bash... Or without passing a binary to gdbserver: $ gdbserver --multi :9999 ... (gdb) target extended-remote :9999 ... (gdb) set remote exec-file /bin/sh ... (gdb) run ... (gdb) disconnect (gdb) quit now reconnect in extended-remote with another gdb instance: $ gdb ... (gdb) target extended-remote :9999 ... Reading symbols from target:/bin/bash... So even more correct even would be to say that patch 7 causes GDB to attempt to locate and open the executable of processes already being debugged by the remote target, on initial connection, with the simplest example being: bash$ gdb -q (gdb) target remote | gdbserver - /bin/sh Remote debugging using | gdbserver - /bin/sh Process /bin/sh created; pid = 32166 stdin/stdout redirected Remote debugging using stdio Reading symbols from target:/bin/bash... Thanks, Pedro Alves