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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 0BABDC433ED for ; Fri, 9 Apr 2021 09:55:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CF242611C2 for ; Fri, 9 Apr 2021 09:55:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233241AbhDIJzh (ORCPT ); Fri, 9 Apr 2021 05:55:37 -0400 Received: from mail.kernel.org ([198.145.29.99]:42858 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233369AbhDIJzQ (ORCPT ); Fri, 9 Apr 2021 05:55:16 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 020F7611C0; Fri, 9 Apr 2021 09:54:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1617962100; bh=mGIK2BwVvX8Fl3XDAr452fbkcDbKapAu60q+46qrF0Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MQTWNr1fNlVArmkvOWlEM6mjwgffDVwS4WHLL53EBVZL9VJJKTCde1H62BNFYIyTe d12lTaaiGZeIvoO+fMhdlg8DNICDhPyBB8iaOzV+axOBIj5D02ouSa2C1m6zwSiqPI D2/k3zA8qPcloGGAlbdi9DAjt9+n/DemZLyTH/8I= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Arnd Bergmann , Ingo Molnar , Sasha Levin Subject: [PATCH 4.4 04/20] x86/build: Turn off -fcf-protection for realmode targets Date: Fri, 9 Apr 2021 11:53:10 +0200 Message-Id: <20210409095300.095843008@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210409095259.957388690@linuxfoundation.org> References: <20210409095259.957388690@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arnd Bergmann [ Upstream commit 9fcb51c14da2953de585c5c6e50697b8a6e91a7b ] The new Ubuntu GCC packages turn on -fcf-protection globally, which causes a build failure in the x86 realmode code: cc1: error: ‘-fcf-protection’ is not compatible with this target Turn it off explicitly on compilers that understand this option. Signed-off-by: Arnd Bergmann Signed-off-by: Ingo Molnar Link: https://lore.kernel.org/r/20210323124846.1584944-1-arnd@kernel.org Signed-off-by: Sasha Levin --- arch/x86/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 5fece9334f12..2b3adb3008c3 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -34,7 +34,7 @@ REALMODE_CFLAGS := $(M16_CFLAGS) -g -Os -D__KERNEL__ \ -DDISABLE_BRANCH_PROFILING \ -Wall -Wstrict-prototypes -march=i386 -mregparm=3 \ -fno-strict-aliasing -fomit-frame-pointer -fno-pic \ - -mno-mmx -mno-sse + -mno-mmx -mno-sse $(call cc-option,-fcf-protection=none) REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -ffreestanding) REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -fno-stack-protector) -- 2.30.2