From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on gnuweeb.org X-Spam-Level: X-Spam-Status: No, score=-5.1 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_HI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 Authentication-Results: gnuweeb.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: gnuweeb.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=T6chP21R; dkim-atps=neutral Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=139.178.84.217; helo=dfw.source.kernel.org; envelope-from=srs0=rfi9=ca=paulmck-thinkpad-p17-gen-1.home=paulmck@kernel.org; receiver= Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by gnuweeb.org (Postfix) with ESMTPS id 8945A249B2A for ; Tue, 13 Jun 2023 03:45:23 +0700 (WIB) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 38AF262BE4; Mon, 12 Jun 2023 20:45:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 03E8FC433A0; Mon, 12 Jun 2023 20:45:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1686602717; bh=XFbVAoZliJCAsIZtC3pxKZbS9h6xeSTohI3SMPpRFt0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=T6chP21R/i3XiGgRmPpX4CX4ZHFRyynO1aN1tCDAHDWdODS/Js2M72FfrxexZqBso QRBqdL9SShZFknnwRIWjCoyKVDy5e2sQPVBWViDoK1zIcgEFsCj6PyzmoE6syLm9Kv 8nroR2RR9jbX7Q63pxcYbmSqHhtht01/wi6xutzJmA37TmjYt6yCUpXCleG3Ir8HKE yfugWe9O8lnJwAxLEdGpxj7WdWbRXKR5u0wnqhqCDHVoTGg+DrFrXX4TUBYyWLQRf7 YJWLOLq5hSW37D8CZPhRAUOQqglKKLTcr8pFZ1tCzUwgrMCs+d6K05/QNNX7xWA0XT dxBrYLAJ5mGpA== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id E40AACE3A6C; Mon, 12 Jun 2023 13:45:15 -0700 (PDT) From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: gwml@vger.gnuweeb.org, kernel-team@meta.com, w@lwt.eu, =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= , Willy Tarreau , "Paul E . McKenney" Subject: [PATCH v2 nolibc 26/53] tools/nolibc: x86_64: disable stack protector for _start Date: Mon, 12 Jun 2023 13:44:47 -0700 Message-Id: <20230612204514.292087-26-paulmck@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <8b757cc0-3719-4e63-a755-9710384137bc@paulmck-laptop> References: <8b757cc0-3719-4e63-a755-9710384137bc@paulmck-laptop> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit List-Id: From: Thomas Weißschuh This was forgotten in the original submission. It is unknown why it worked for x86_64 on some compiler without this attribute. Reported-by: Willy Tarreau Closes: https://lore.kernel.org/lkml/20230520133237.GA27501@1wt.eu/ Fixes: 0d8c461adbc4 ("tools/nolibc: x86_64: add stackprotector support") Signed-off-by: Thomas Weißschuh Signed-off-by: Willy Tarreau Signed-off-by: Paul E. McKenney --- tools/include/nolibc/arch-x86_64.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/include/nolibc/arch-x86_64.h b/tools/include/nolibc/arch-x86_64.h index d98f6c89d143..e201af15e142 100644 --- a/tools/include/nolibc/arch-x86_64.h +++ b/tools/include/nolibc/arch-x86_64.h @@ -190,7 +190,7 @@ const unsigned long *_auxv __attribute__((weak)); * 2) The deepest stack frame should be zero (the %rbp). * */ -void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) _start(void) +void __attribute__((weak,noreturn,optimize("omit-frame-pointer"),no_stack_protector)) _start(void) { __asm__ volatile ( #ifdef NOLIBC_STACKPROTECTOR -- 2.40.1