From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 27E25C1975A for ; Tue, 17 Mar 2020 21:53:09 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F02EF2075E for ; Tue, 17 Mar 2020 21:53:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="M91to/II"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="j9izuxAJ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F02EF2075E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=C48752ysmeBsIMWKq3b0arq4Elj9Nt7n22XZKsDLiOA=; b=M91to/IIMOzY/f QGY10PMv+VHh8N49ML62RgWsYv1klDnUt5BQ3HcQ1UJyX8wu03wPqtxFn2b/jva0YxsMur+0vBoMe j6rfwbQfJXFXypCdbbz7t/Pv5lGOasMptlmFfUmwfyWW1NsdIFJeBoHe76yDVXRtV8Int+WsT0AMT Cr8SCL20MBGTFWWmgU+403ag7GaQDhkJKxRIVkf6z5rsxD2KYDXyFIKSJBT9hD8CZ3wW1EoK1IS+9 dc5ppg1kPLuXgTBceIZAKg64tOAXUUxzcS9qXuooVRtoBY7dB4JBqHRVil24CLlTBEipathCiXsLQ E4GcYpgWojXnllX9Ld+A==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jEK96-0000o4-08; Tue, 17 Mar 2020 21:53:08 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jEK93-0000jy-0C for linux-arm-kernel@lists.infradead.org; Tue, 17 Mar 2020 21:53:06 +0000 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id F25DB20724; Tue, 17 Mar 2020 21:53:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584481984; bh=4fpXMStLT3ChZUSNNoR5DM0vAh+pn633V+leBozCyWA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=j9izuxAJEYWfwOlyHm+dzHMrstapzlPoXAEYb7DfotjV7f8+lIrKsh/8yjOmRey35 G6BkqEvgCCE0/nxL4u9SrTR3Ai5Q51DCYkWMsq7w+HwzxaZHlQeiS4oaslEAOKqBXs HfHocYpm5b4/XhOJrKH+WzAynGxE3ddRp080wgDc= Date: Tue, 17 Mar 2020 21:52:57 +0000 From: Will Deacon To: Kees Cook Subject: Re: [PATCH 6/9] arm64/build: Use common DISCARDS in linker script Message-ID: <20200317215256.GA20788@willie-the-truck> References: <20200228002244.15240-1-keescook@chromium.org> <20200228002244.15240-7-keescook@chromium.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200228002244.15240-7-keescook@chromium.org> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200317_145305_065749_BDD98769 X-CRM114-Status: GOOD ( 15.11 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , "H.J. Lu" , Arnd Bergmann , linux-kbuild@vger.kernel.org, Catalin Marinas , Masahiro Yamada , x86@kernel.org, Russell King , linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com, James Morse , linux-arch@vger.kernel.org, Borislav Petkov , Peter Collingbourne , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Feb 27, 2020 at 04:22:41PM -0800, Kees Cook wrote: > Use the common DISCARDS rule for the linker script in an effort to > regularize the linker script to prepare for warning on orphaned > sections. > > Signed-off-by: Kees Cook > --- > arch/arm64/kernel/vmlinux.lds.S | 8 ++------ > 1 file changed, 2 insertions(+), 6 deletions(-) > > diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S > index 497f9675071d..c61d9ab3211c 100644 > --- a/arch/arm64/kernel/vmlinux.lds.S > +++ b/arch/arm64/kernel/vmlinux.lds.S > @@ -6,6 +6,7 @@ > */ > > #define RO_EXCEPTION_TABLE_ALIGN 8 > +#define RUNTIME_DISCARD_EXIT > > #include > #include > @@ -19,7 +20,6 @@ > > /* .exit.text needed in case of alternative patching */ > #define ARM_EXIT_KEEP(x) x > -#define ARM_EXIT_DISCARD(x) > > OUTPUT_ARCH(aarch64) > ENTRY(_text) > @@ -94,12 +94,8 @@ SECTIONS > * matching the same input section name. There is no documented > * order of matching. > */ > + DISCARDS > /DISCARD/ : { > - ARM_EXIT_DISCARD(EXIT_TEXT) > - ARM_EXIT_DISCARD(EXIT_DATA) > - EXIT_CALL > - *(.discard) > - *(.discard.*) > *(.interp .dynamic) > *(.dynsym .dynstr .hash .gnu.hash) > *(.eh_frame) Acked-by: Will Deacon Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel