From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15505 invoked by alias); 4 Feb 2014 11:21:22 -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 15422 invoked by uid 89); 4 Feb 2014 11:21:21 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.4 required=5.0 tests=AWL,BAYES_00,SPF_HELO_PASS,SPF_SOFTFAIL autolearn=no version=3.3.2 X-HELO: hera.aquilenet.fr Received: from hera.aquilenet.fr (HELO hera.aquilenet.fr) (141.255.128.1) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Tue, 04 Feb 2014 11:21:20 +0000 Received: from localhost (localhost [127.0.0.1]) by hera.aquilenet.fr (Postfix) with ESMTP id 873C31BA0; Tue, 4 Feb 2014 12:21:16 +0100 (CET) Received: from hera.aquilenet.fr ([127.0.0.1]) by localhost (hera.aquilenet.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id nBASbZ9uZarN; Tue, 4 Feb 2014 12:21:16 +0100 (CET) Received: from pluto (pluto.bordeaux.inria.fr [193.50.110.57]) by hera.aquilenet.fr (Postfix) with ESMTPSA id 4EC791B33; Tue, 4 Feb 2014 12:21:16 +0100 (CET) From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=) To: Doug Evans Cc: guile-user@gnu.org, "gdb-patches\@sourceware.org" Subject: Re: Fun with LD_PRELOAD References: X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 16 =?utf-8?Q?Pluvi=C3=B4se?= an 222 de la =?utf-8?Q?R=C3=A9volution?= X-PGP-Key-ID: 0xEA52ECF4 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 83C4 F8E5 10A3 3B4C 5BEA D15D 77DD 95E2 EA52 ECF4 X-OS: x86_64-unknown-linux-gnu Date: Tue, 04 Feb 2014 11:21:00 -0000 In-Reply-To: (Doug Evans's message of "Sun, 2 Feb 2014 14:08:18 -0800") Message-ID: <8761ovp1hw.fsf@gnu.org> User-Agent: Gnus/5.130007 (Ma Gnus v0.7) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-SW-Source: 2014-02/txt/msg00018.txt.bz2 Hi, Doug, Doug Evans skribis: > It's kinda useful to see the system call tracing amongst gdb's own > debug output, but my real goal is to explore ways of exercising gdb > that are otherwise harder to do. > With this I can script what happens when gdb does ptrace,waitpid,tkill,et= c. > Whether this exploration yields anything useful ... TBD. Looks fun. So the main application would be to stress-test GDB and see if it misses signals sent to application threads right when GDB is about to stop them, for example, right? Cheers, Ludo=E2=80=99.