From nobody Tue Oct 28 12:16:27 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1515082357759153.8165849553634; Thu, 4 Jan 2018 08:12:37 -0800 (PST) Received: from localhost ([::1]:47069 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eX88C-0003b4-RJ for importer@patchew.org; Thu, 04 Jan 2018 11:12:36 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37758) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eX83j-00081H-I2 for qemu-devel@nongnu.org; Thu, 04 Jan 2018 11:08:00 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eX83i-0004Tu-R2 for qemu-devel@nongnu.org; Thu, 04 Jan 2018 11:07:59 -0500 Received: from mx1.redhat.com ([209.132.183.28]:11766) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eX83i-0004Su-Kd for qemu-devel@nongnu.org; Thu, 04 Jan 2018 11:07:58 -0500 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D60BCC051664 for ; Thu, 4 Jan 2018 16:07:57 +0000 (UTC) Received: from localhost (ovpn-112-61.ams2.redhat.com [10.36.112.61]) by smtp.corp.redhat.com (Postfix) with ESMTP id 97A868CCE3; Thu, 4 Jan 2018 16:07:34 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Thu, 4 Jan 2018 17:05:12 +0100 Message-Id: <20180104160523.22995-8-marcandre.lureau@redhat.com> In-Reply-To: <20180104160523.22995-1-marcandre.lureau@redhat.com> References: <20180104160523.22995-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Thu, 04 Jan 2018 16:07:57 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v3 07/18] build-sys: add some sanitizers when --enable-debug if possible X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pbonzini@redhat.com, famz@redhat.com, =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Enable ASAN/UBSan by default if the compiler supports it. Typical slowdown introduced by AddressSanitizer is 2x. UBSan shouldn't have much impact on runtime cost. Signed-off-by: Marc-Andr=C3=A9 Lureau Reviewed-by: Philippe Mathieu-Daud=C3=A9 Tested-by: Philippe Mathieu-Daud=C3=A9 --- configure | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/configure b/configure index 3953859314..de1477c93a 100755 --- a/configure +++ b/configure @@ -5161,6 +5161,13 @@ if test "$gcov" =3D "yes" ; then elif test "$fortify_source" =3D "yes" ; then CFLAGS=3D"-O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3D2 $CFLAGS" elif test "$debug" =3D "yes"; then + write_c_skeleton; + if compile_prog "-fsanitize=3Daddress" ""; then + CFLAGS=3D"-fsanitize=3Daddress $CFLAGS" + fi + if compile_prog "-fsanitize=3Dundefined" ""; then + CFLAGS=3D"-fsanitize=3Dundefined $CFLAGS" + fi if compile_prog "-Og" ""; then CFLAGS=3D"-Og $CFLAGS" elif compile_prog "-O1" ""; then --=20 2.15.1.355.g36791d7216