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=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 5550DC433E0 for ; Wed, 10 Jun 2020 11:21:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1E17A2074B for ; Wed, 10 Jun 2020 11:21:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591788081; bh=9fKKwsQG+ae0h8ivgqvpkqBV3pK8Ukj9focnXx4zajc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=J4fRPn4URCD7V1lXOypN+XBPIvtyYh27BfTe76S8fbFbzBrp55FNESsxF9xfzgDEW 1o8rrjYO64uMzW5DagTfgUQ9N6r5qgIXYj2qzEU5rlhC3f5wbEddn5xddf9cSypmPw ZpqrJk3c43z2UdHxqO9YABZZLqCTC1+j5MBdaJhk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728464AbgFJLVU (ORCPT ); Wed, 10 Jun 2020 07:21:20 -0400 Received: from mail.kernel.org ([198.145.29.99]:39330 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728381AbgFJLVR (ORCPT ); Wed, 10 Jun 2020 07:21:17 -0400 Received: from localhost.localdomain (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0BCA02078C; Wed, 10 Jun 2020 11:21:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591788077; bh=9fKKwsQG+ae0h8ivgqvpkqBV3pK8Ukj9focnXx4zajc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bth/F3nXjeNt4SgkC/ZRFpXEHsVWDZed8ygE5hwx80F1Nw1Dyr/CkiNtfJcmvzfg5 gqaR8OYTFFoHDZTTVrQgL8hQWKCDC9ZwsZu81O4mDBIOfLp42uNPuxmsI31DEA/fK+ cawp48O2k2BCXQ8YOez5JPGYtsYOi+eTe0zUSUaU= From: Will Deacon To: Nick Desaulniers , Catalin Marinas Cc: Will Deacon , Vincenzo Frascino , Nathan Chancellor , Naohiro Aota , Masahiro Yamada , Robin Murphy , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Dave Martin , Stephen Boyd , clang-built-linux@googlegroups.com, Manoj Gupta , Luis Lozano Subject: Re: [PATCH v2] arm64: vdso32: add CONFIG_THUMB2_COMPAT_VDSO Date: Wed, 10 Jun 2020 12:21:09 +0100 Message-Id: <159178553820.37708.12308914886514191769.b4-ty@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200608205711.109418-1-ndesaulniers@google.com> References: <20200528072031.GA22156@willie-the-truck> <20200608205711.109418-1-ndesaulniers@google.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 8 Jun 2020 13:57:08 -0700, Nick Desaulniers wrote: > Allow the compat vdso (32b) to be compiled as either THUMB2 (default) or > ARM. > > For THUMB2, the register r7 is reserved for the frame pointer, but > code in arch/arm64/include/asm/vdso/compat_gettimeofday.h > uses r7. Explicitly set -fomit-frame-pointer, since unwinding through > interworked THUMB2 and ARM is unreliable anyways. See also how > CONFIG_UNWINDER_FRAME_POINTER cannot be selected for > CONFIG_THUMB2_KERNEL for ARCH=arm. > > [...] Applied to arm64 (for-next/core), thanks! [1/1] arm64: vdso32: add CONFIG_THUMB2_COMPAT_VDSO https://git.kernel.org/arm64/c/625412c210fb Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev