From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 122135 invoked by alias); 17 Feb 2016 13:53:28 -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 122018 invoked by uid 89); 17 Feb 2016 13:53:28 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RP_MATCHES_RCVD,SPF_HELO_PASS autolearn=ham version=3.3.2 spammy=sysroot 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, 17 Feb 2016 13:53:27 +0000 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id D5E1E28A46; Wed, 17 Feb 2016 13:53:25 +0000 (UTC) Received: from blade.nx (ovpn-116-100.ams2.redhat.com [10.36.116.100]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u1HDrPaw013508; Wed, 17 Feb 2016 08:53:25 -0500 Received: by blade.nx (Postfix, from userid 1000) id 758982643D5; Wed, 17 Feb 2016 13:53:24 +0000 (GMT) Date: Wed, 17 Feb 2016 13:53:00 -0000 From: Gary Benson To: Pedro Alves Cc: Luis Machado , gdb-patches@sourceware.org Subject: Re: [PATCH] Remote debugging without a binary (regression) Message-ID: <20160217135324.GC24631@blade.nx> References: <1455200365-5270-1-git-send-email-lgustavo@codesourcery.com> <20160211163510.GA21352@blade.nx> <56BCBF8F.8040601@codesourcery.com> <20160212103144.GB12352@blade.nx> <56BDF92B.50107@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <56BDF92B.50107@redhat.com> X-IsSubscribed: yes X-SW-Source: 2016-02/txt/msg00510.txt.bz2 Pedro Alves wrote: > On 02/12/2016 10:31 AM, Gary Benson wrote: > > FWIW I tried this (both on the same machine): > > > > gdbserver :9999 /bin/ls > > gdb -q -ex "set sysroot /whatever" -ex "target remote :9999" > > > > and got this: > > > > Reading symbols from /bin/ls...(no debugging symbols found)...done. > > > > which I think is an error: the sysroot is being ignored. > > I agree. If you tell gdb about a sysroot, then I can't think why > you'd want it to try opening an absolute filename on the host, > outside the sysroot. > > (caching and buildid matching aside) There isn't any caching or buildid matching, the logic in exec_file_locate_attach is wrong. It might even be the cause of the exception Luis is seeing so with luck we can avoid a try-catch in remote_add_inferior. I'm putting together a patch now. Cheers, Gary -- http://gbenson.net/