From patchwork Fri Mar 20 14:53:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vincenzo Frascino X-Patchwork-Id: 11449569 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5FC30139A for ; Fri, 20 Mar 2020 15:02:04 +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 393B920714 for ; Fri, 20 Mar 2020 15:02:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Xqu5nAHn" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 393B920714 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.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:MIME-Version: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=5q1Qp1lUSHNCjvd6UOo9I1mndOz+//4Jnc74mGWUd8E=; b=Xqu5nAHnZfd8ff a3F6upb1rQbU5/nWhB6YNa0gmvQmSXP1cOxEae5H89PXkPUlnY+FolCtbn5Brg5MB1y3PV5FCkvVf Zv3cUSQ07p/2/bFp/OFAbmEfBt26t9bLWI0lBL/qPUebPqBLn5hPV+za1OZ5vyCtHxw+yPSFM+bU/ 2imtFcMxbc9QTKnsh7fgtZrn71C4Gvbri18xDrgr+Io1lg94XOGyTEQgYXm2c9u+3i1A4U8f4JfD8 K192ZVPczBdtZa74BmFZOErcxgh4wflcRQxcFSI8IbEYdyBvuY1YJfS0c3CRMCEgFGHQRLE17l5cN LtDXkLcEyalOzAkg3kIw==; 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 1jFJ9t-0005Z3-72; Fri, 20 Mar 2020 15:02:01 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jFJ4B-0007c0-DY for linux-arm-kernel@lists.infradead.org; Fri, 20 Mar 2020 14:56:10 +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 1330B1063; Fri, 20 Mar 2020 07:56:07 -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 0218B3F792; Fri, 20 Mar 2020 07:56:03 -0700 (PDT) From: Vincenzo Frascino To: linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com, linux-mips@vger.kernel.org, x86@kernel.org Subject: [PATCH v5 26/26] arm64: vdso32: Enable Clang Compilation Date: Fri, 20 Mar 2020 14:53:51 +0000 Message-Id: <20200320145351.32292-27-vincenzo.frascino@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200320145351.32292-1-vincenzo.frascino@arm.com> References: <20200320145351.32292-1-vincenzo.frascino@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200320_075608_054731_61E7CAD0 X-CRM114-Status: UNSURE ( 8.72 ) X-CRM114-Notice: Please train this message. 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Cc: Catalin Marinas Cc: Will Deacon Reviewed-by: Nathan Chancellor Tested-by: Nathan Chancellor # build Acked-by: Catalin Marinas Signed-off-by: Vincenzo Frascino Tested-by: Stephen Boyd --- arch/arm64/kernel/vdso32/Makefile | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm64/kernel/vdso32/Makefile b/arch/arm64/kernel/vdso32/Makefile index 04df57b43cb1..3964738ebbde 100644 --- a/arch/arm64/kernel/vdso32/Makefile +++ b/arch/arm64/kernel/vdso32/Makefile @@ -10,7 +10,18 @@ include $(srctree)/lib/vdso/Makefile # Same as cc-*option, but using CC_COMPAT instead of CC ifeq ($(CONFIG_CC_IS_CLANG), y) +COMPAT_GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE_COMPAT)elfedit)) +COMPAT_GCC_TOOLCHAIN := $(realpath $(COMPAT_GCC_TOOLCHAIN_DIR)/..) + +CC_COMPAT_CLANG_FLAGS := --target=$(notdir $(CROSS_COMPILE_COMPAT:%-=%)) +CC_COMPAT_CLANG_FLAGS += --prefix=$(COMPAT_GCC_TOOLCHAIN_DIR) +CC_COMPAT_CLANG_FLAGS += -no-integrated-as -Qunused-arguments +ifneq ($(COMPAT_GCC_TOOLCHAIN),) +CC_COMPAT_CLANG_FLAGS += --gcc-toolchain=$(COMPAT_GCC_TOOLCHAIN) +endif + CC_COMPAT ?= $(CC) +CC_COMPAT += $(CC_COMPAT_CLANG_FLAGS) else CC_COMPAT ?= $(CROSS_COMPILE_COMPAT)gcc endif