| Message ID | 20190816122403.14994-16-raphael.gault@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show
Return-Path: <linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org> Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7323414F7 for <patchwork-linux-arm@patchwork.kernel.org>; Fri, 16 Aug 2019 12:29:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5CF332893D for <patchwork-linux-arm@patchwork.kernel.org>; Fri, 16 Aug 2019 12:29:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4DD86289C6; Fri, 16 Aug 2019 12:29:23 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id DCB9B2893D for <patchwork-linux-arm@patchwork.kernel.org>; Fri, 16 Aug 2019 12:29:22 +0000 (UTC) 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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=7mRFE7+0ghLbqIxfrcA5Rb0hxNspipBkU0mHxzBOvdI=; b=Ba7Fz4x3wdGDaz0gPO4SA0lO3L vNqFYZ7ctf3ztStnz2nu1YMITEzJt1F6JXQomLvwuUke0WITy0UAGaCBD50xst8+u7i0lswhCOTzT rtUe2FoNyWpW+HEGdxsFqfMui/f7SxYzG45GRGsMedrMVWjXIS6MP88FyIPtTRltTKVhXJf1RD3W/ EQtGjg9XqE9+cxymEtSVRnFlEmLE4rpy649exgAz3BUYsisi7cZE9N7ZdgKnGEvhjYSTmJArlz6Rr Fpfhrc7PvAoEi9FF9QmrrcGY2nGmL5kho2V7dp82lo5Dhz2xzcEmJ0tJ5kRBc16Yk6+g7O0KF/1H9 nly1Dd4A==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hybMA-0001KB-AG; Fri, 16 Aug 2019 12:29:22 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hybHx-0004Np-NV for linux-arm-kernel@lists.infradead.org; Fri, 16 Aug 2019 12:25:03 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 95C6E344; Fri, 16 Aug 2019 05:25:01 -0700 (PDT) Received: from e121650-lin.cambridge.arm.com (e121650-lin.cambridge.arm.com [10.1.196.120]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 5BE603F706; Fri, 16 Aug 2019 05:25:00 -0700 (PDT) From: Raphael Gault <raphael.gault@arm.com> To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, jpoimboe@redhat.com Subject: [RFC v4 15/18] arm64: kernel: Add exception on kuser32 to prevent stack analysis Date: Fri, 16 Aug 2019 13:24:00 +0100 Message-Id: <20190816122403.14994-16-raphael.gault@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190816122403.14994-1-raphael.gault@arm.com> References: <20190816122403.14994-1-raphael.gault@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190816_052501_885195_33D32FB4 X-CRM114-Status: UNSURE ( 8.57 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: <linux-arm-kernel.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> List-Post: <mailto:linux-arm-kernel@lists.infradead.org> List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> Cc: raph.gault+kdev@gmail.com, peterz@infradead.org, catalin.marinas@arm.com, will.deacon@arm.com, Raphael Gault <raphael.gault@arm.com>, julien.thierry.kdev@gmail.com MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP |
| Series |
objtool: Add support for arm64
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expand
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diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile index 478491f07b4f..1239c7da4c02 100644 --- a/arch/arm64/kernel/Makefile +++ b/arch/arm64/kernel/Makefile @@ -33,6 +33,9 @@ ifneq ($(CONFIG_COMPAT_VDSO), y) obj-$(CONFIG_COMPAT) += sigreturn32.o endif obj-$(CONFIG_KUSER_HELPERS) += kuser32.o + +OBJECT_FILES_NON_STANDARD_kuser32.o := y + obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o entry-ftrace.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_ARM64_MODULE_PLTS) += module-plts.o
kuser32 being used for compatibility, it contains a32 instructions which are not recognised by objtool when trying to analyse arm64 object files. Thus, we add an exception to skip validation on this particular file. Signed-off-by: Raphael Gault <raphael.gault@arm.com> --- arch/arm64/kernel/Makefile | 3 +++ 1 file changed, 3 insertions(+)