Received: by 2002:a25:f815:0:0:0:0:0 with SMTP id u21csp688782ybd; Wed, 26 Jun 2019 04:37:16 -0700 (PDT) X-Google-Smtp-Source: APXvYqx+IQgNHTrQ1ko/taYMy/nesUgj9enQtivRMbT6QeXFFKCk/gCHO8WxXXAhe4DseNkXHDC8 X-Received: by 2002:a17:90a:a008:: with SMTP id q8mr4257264pjp.114.1561549035999; Wed, 26 Jun 2019 04:37:15 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1561549035; cv=none; d=google.com; s=arc-20160816; b=UacDcBJh5X34//6KcDlXEpb5uDlsiXAKaJ4WMYxCuEbAyReiXfbi1hnbuVGmaakNl3 w5tQG67Dy0mzw47vSIr+PdRHPECKF2rBo1pswxY4Gcnb1OYh9744hPZh3QjJ+Rq/aRmj fsQO4JAxBcwnYQz97P7mdprPRMpU+MNYVa4thYdEWkcpPI5Qea62+9MLNh+yOgiatosp mNeqkX6GH9c18vCANjQf/QuR9+COO15fVtLTNTfCu7KOdX4jlkE2GVk46TG8qMJ5RUFg be/mbfCrKUrMpEctDTiYVKRfeYM4lSkEpHH8OK5vdgBEdf5o7HEnZEYx7wWXcpc9cTlL NH4g== 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=ENUDKjtc19vB/WaZGlq7vXkIsdtFBsetIB5QcHocYP8=; b=QZgqTthC9uj07DouIi0rW9aTE13P4WeEsS6TF9gmLyHMmBO9fLor7XzwndUfMGrPaz Tc0njLuoz9d3HCObmfbS9bBbzBgl8oapynbFaunQRWzHFkbbe5BRFiaql+/2vm6H3vIP +ukycGKF5JLdOO+g/Xe/a2tvk/sZLGN9LG1AkTBqHeAhDxjZ3kHn3fqXHkfc5PwxOIKL SSkOhPwhAGBofPvNppbL9VPVy+yok1pBPIqlepg7zLCm8mWnetTxnbbyhZTEUrMVofwx oYbtfHrRrHeRCg/2JS9ChMWYF7LvClVvxamCsOWlA0JdLZ+2vhc78uk4ym1JkX2pBOmh WBiw== 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 g12si14773107pgd.488.2019.06.26.04.36.59; Wed, 26 Jun 2019 04:37:15 -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 S1727289AbfFZLgs (ORCPT + 99 others); Wed, 26 Jun 2019 07:36:48 -0400 Received: from foss.arm.com ([217.140.110.172]:59152 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726339AbfFZLgs (ORCPT ); Wed, 26 Jun 2019 07:36:48 -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 5E2F5360; Wed, 26 Jun 2019 04:36:47 -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 00AED3F718; Wed, 26 Jun 2019 04:36:43 -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 v2] arm64: vdso: Fix compilation with clang older then 8 Date: Wed, 26 Jun 2019 12:36:32 +0100 Message-Id: <20190626113632.9295-1-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 older then 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 | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile index ec81d28aeb5d..4ab863045188 100644 --- a/arch/arm64/kernel/vdso/Makefile +++ b/arch/arm64/kernel/vdso/Makefile @@ -38,6 +38,13 @@ else CFLAGS_vgettimeofday.o = -O2 -mcmodel=tiny -include $(c-gettimeofday-y) endif +# Clang versions less than 8 do not support -mcmodel=tiny +ifeq ($(CONFIG_CC_IS_CLANG), y) + ifeq ($(shell test $(CONFIG_CLANG_VERSION) -lt 80000; echo $$?),0) + CFLAGS_REMOVE_vgettimeofday.o += -mcmodel=tiny + endif +endif + # Disable gcov profiling for VDSO code GCOV_PROFILE := n -- 2.22.0