From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 03 Jan 2024 11:19:01 +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 1rKyKz-001mft-22 for lore@lore.pengutronix.de; Wed, 03 Jan 2024 11:19:01 +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 1rKyKy-0003nW-Kb for lore@pengutronix.de; Wed, 03 Jan 2024 11:19:01 +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:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=8YFcHW3rAmgtqSjLhIn9pjmOt+swpl+56g6b2Ym32C4=; b=LwAaE/czWpQJNwvCIp1sVLCuoc yAj4TkIxtn+YmRphNn8nr2qtz/D0pK5b2PU+ZbWljQcS4FHgGa4T1e5+POHlD607Lz1uu3NU0K3eQ pQhbCOuKO3/jZc4uRFDooR21YBjV5hHHspzDJHjLd0Z+mRu/IHv3GZD118Gv8paB+wz4tOjVrttBm NcyX2AH6zFh0gMceT/dCqmOq6ipho6ng3ORx/d48TcvQDoUpkwtLpPAbipqX99GqiHONlHHw9s9y8 n/MUkhorJfXwkmieTuTE+EBH6NG9ur1DJi2qE5S3oBRmMmu9KCoUXaBdZHbgWJFPh0Mx1fSDQLU+o GCH8sXiQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rKyJx-00AMxL-00; Wed, 03 Jan 2024 10:17:57 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rKyJr-00AMtn-2W for barebox@lists.infradead.org; Wed, 03 Jan 2024 10:17:54 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rKyJq-0003JZ-Jj; Wed, 03 Jan 2024 11:17:50 +0100 Received: from [2a0a:edc0:0:1101:1d::54] (helo=dude05.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1rKyJq-0005wi-6u; Wed, 03 Jan 2024 11:17:50 +0100 Received: from localhost ([::1] helo=dude05.red.stw.pengutronix.de) by dude05.red.stw.pengutronix.de with esmtp (Exim 4.96) (envelope-from ) id 1rKyJq-00B2Bh-0Q; Wed, 03 Jan 2024 11:17:50 +0100 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Ahmad Fatoum Date: Wed, 3 Jan 2024 11:17:47 +0100 Message-Id: <20240103101748.2629927-2-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240103101748.2629927-1-a.fatoum@pengutronix.de> References: <20240103101748.2629927-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240103_021751_845163_8A33DDFC X-CRM114-Status: UNSURE ( 9.06 ) X-CRM114-Notice: Please train this message. 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=-6.3 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 1/2] compiler: define __ll_elem for linker list elements 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) When built with clang + AddressSanitizer, global variables end up with a redzone that breaks linker list elements. The __no_sanitize_address attribute prevents these redzones, but GCC isn't happy about applying it to anything but functions. Therefore define a __ll_elem macro for defining linker list elements that takes care to avoid these redzones when building with clang. Signed-off-by: Ahmad Fatoum --- include/linux/compiler_types.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h index 9ef8115a396f..d925b3da296d 100644 --- a/include/linux/compiler_types.h +++ b/include/linux/compiler_types.h @@ -274,6 +274,12 @@ struct ftrace_likely_data { #define __cold __attribute__((cold)) #define __section(S) __attribute__((__section__(#S))) +#ifdef __clang__ +#define __ll_elem(S) __section(S) __used __no_sanitize_address +#else +#define __ll_elem(S) __section(S) __used +#endif + #ifdef CONFIG_ENABLE_MUST_CHECK #define __must_check __attribute__((warn_unused_result)) -- 2.39.2