From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 07 Nov 2025 14:24:36 +0100 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vHMSC-00GJEq-17 for lore@lore.pengutronix.de; Fri, 07 Nov 2025 14:24:36 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1vHMSB-0003kx-Pv for lore@pengutronix.de; Fri, 07 Nov 2025 14:24:36 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; 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Fri, 07 Nov 2025 14:24:05 +0100 Received: from pty.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::c5]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vHMRh-007XJU-1v; Fri, 07 Nov 2025 14:24:05 +0100 Received: from sha by pty.whiteo.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1vHMRh-006oFb-1Z; Fri, 07 Nov 2025 14:24:05 +0100 Date: Fri, 7 Nov 2025 14:24:05 +0100 From: Sascha Hauer To: Ahmad Fatoum Cc: Ahmad Fatoum , barebox@lists.infradead.org Message-ID: References: <20251027074446.2474869-1-a.fatoum@barebox.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-Accept-Language: de,en X-Accept-Content-Type: text/plain X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251107_052408_900064_185D3290 X-CRM114-Status: GOOD ( 22.07 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.0 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH] sandbox: add memory leak debugging tooling around LeakSanitizer X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) On Tue, Oct 28, 2025 at 08:59:05AM +0100, Ahmad Fatoum wrote: > Hi Sascha, > > On 10/28/25 8:57 AM, Sascha Hauer wrote: > > On Mon, Oct 27, 2025 at 08:44:45AM +0100, Ahmad Fatoum wrote: > >> When enabled, this allows calling barebox_memleak_check() or running the > >> checkleak command to instruct LeakSanitizer to sweep the memory and find > >> unreferenced allocations. > >> > >> LeakSanitizier is also enabled along AddressSanitizer and runs on AMD64 > >> Linux automatically on exit already. > >> > >> +static int do_checkleak(int argc, char *argv[]) > >> +{ > >> + unsigned int count; > >> + int opt; > >> + > >> + while((opt = getopt(argc, argv, "l:")) > 0) { > >> + switch(opt) { > >> + case 'l': > >> + if (kstrtouint(optarg, 0, &count)) > >> + return COMMAND_ERROR; > >> + (void)malloc(count); > >> + break; > >> + default: > >> + return COMMAND_ERROR_USAGE; > >> + } > >> + } > >> + > >> + argv += optind; > >> + argc -= optind; > >> + > >> + if (argc) > >> + return COMMAND_ERROR_USAGE; > >> + > >> + memleak_check(); > > > > barebox exits in this call. Is this intended? > > Until I figure out how to suppress it, yes, unfortunately. Haven't dug > into the source code yet. With __lsan_do_recoverable_leak_check() instead of __lsan_do_leak_check() the progam doesn't exit. Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |