Received: by 2002:a25:f815:0:0:0:0:0 with SMTP id u21csp4031371ybd; Tue, 25 Jun 2019 12:47:31 -0700 (PDT) X-Google-Smtp-Source: APXvYqwu03wKCwv6Y1bhyeaYsox0qa+NNBJMmcB3DphjqCe9n4YvgFmas3KAig/CVn4/idohENgP X-Received: by 2002:a17:902:8490:: with SMTP id c16mr452308plo.1.1561492051283; Tue, 25 Jun 2019 12:47:31 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1561492051; cv=none; d=google.com; s=arc-20160816; b=TJokwPxbZ6ckjH5pkmCratQOchcVdJEpMw4CRriI/1AtBS7lcav1pMRlnk9w9gDPyW fchdcB3jHSgFSrDlptDphjATrdw1rgHCdPQYqLgLOOsOfqplqpds0iajCeCuVvAg+Hhq OXznB5qK7i5eZdVFxNml8j1wAN3YIbm1ChEujfSI8SUqch7BSIyTiZmnyxCea6m1Cx6E jGrIDFR3m6kZRVwHDQfPE7k93vAQEnfvs1RlYJJPy+8ZcGa1PzHrJlAFmd7+DYTICSIb fdseqIuMbJ8WPcAxwSXFilCaNHxw9P2NaOpOpD2fBIj/tndiuFpVA4r4JrZ+la4/eHOD Fg2Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from; bh=JrypO7d4amwScCtBKf+46mJ2eEsvMVCtTn2GWjiEZ4g=; b=FjK5MXPEya3KfbwQ4E6iS1bbGCKanMIyZucBsxT+8BWXZwKCnYN4rPGFIgYAdUALz0 MvAytnOnZ37uQuDnJAdVY3N//QEz8Txq4pFxZOuXUs6h2oFPmS8fr+mmBbqe2GBgPXOP 5lATa7U61ZLc+G0oMF1QvbgfQnKXenNuP93L1EFgnnWKjdmdo9b63g6VS/1Mc4Hfe3U+ bncVWpn6IJC0OnQidk/4qk8gcm6ml5vgcf9IlkRd6EQuisRWWpVtjt7GjZMCwb266Rdr W9ub+2I+FZ1s8RxzwrGzTshZBGA58C5dO97CSp5kC5TYnvA9KV7bz+ve6VOUefX3WNUi Id7g== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f89si80461pje.50.2019.06.25.12.47.15; Tue, 25 Jun 2019 12:47:31 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732217AbfFYRna (ORCPT + 99 others); Tue, 25 Jun 2019 13:43:30 -0400 Received: from foss.arm.com ([217.140.110.172]:46316 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729521AbfFYRn3 (ORCPT ); Tue, 25 Jun 2019 13:43:29 -0400 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 DE6E1360; Tue, 25 Jun 2019 10:43:28 -0700 (PDT) Received: from e119884-lin.cambridge.arm.com (e119884-lin.cambridge.arm.com [10.1.196.72]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 1B2233F718; Tue, 25 Jun 2019 10:43:26 -0700 (PDT) From: Vincenzo Frascino To: linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: catalin.marinas@arm.com, will.deacon@arm.com, arnd@arndb.de, linux@armlinux.org.uk, ralf@linux-mips.org, paul.burton@mips.com, daniel.lezcano@linaro.org, tglx@linutronix.de, salyzyn@android.com, pcc@google.com, shuah@kernel.org, 0x7f454c46@gmail.com, linux@rasmusvillemoes.dk, huw@codeweavers.com, sthotton@marvell.com, andre.przywara@arm.com, luto@kernel.org, Qian Cai Subject: [PATCH] arm64: vdso: Fix compilation with clang < 8 Date: Tue, 25 Jun 2019 18:43:16 +0100 Message-Id: <20190625174316.21946-1-vincenzo.frascino@arm.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190621095252.32307-5-vincenzo.frascino@arm.com> References: <20190621095252.32307-5-vincenzo.frascino@arm.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 clang versions previous to 8 do not support -mcmodel=tiny. Add a check to the vDSO Makefile for arm64 to remove the flag when these versions of the compiler are detected. Signed-off-by: Vincenzo Frascino Reported-by: Qian Cai Tested-by: Qian Cai --- arch/arm64/kernel/vdso/Makefile | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile index ec81d28aeb5d..5154f50aff2d 100644 --- a/arch/arm64/kernel/vdso/Makefile +++ b/arch/arm64/kernel/vdso/Makefile @@ -38,6 +38,11 @@ else CFLAGS_vgettimeofday.o = -O2 -mcmodel=tiny -include $(c-gettimeofday-y) endif +# Clang versions less than 8 do not support -mcmodel=tiny +ifeq ($(shell test $(CONFIG_CLANG_VERSION) -lt 80000; echo $$?),0) +CFLAGS_REMOVE_vgettimeofday.o += -mcmodel=tiny +endif + # Disable gcov profiling for VDSO code GCOV_PROFILE := n -- 2.22.0