From patchwork Fri Apr 9 09:53:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 418160 Delivered-To: patch@linaro.org Received: by 2002:a02:8562:0:0:0:0:0 with SMTP id g89csp1422601jai; Fri, 9 Apr 2021 02:57:19 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxxoHv6EQd7k8YAWzrXaYDJkCf/3cxH8FCKN+qFLQ5HUx2O3ZkBOwS0J6/FZu8DoSMp5/ug X-Received: by 2002:a17:90a:bb86:: with SMTP id v6mr13193956pjr.37.1617962239762; Fri, 09 Apr 2021 02:57:19 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1617962239; cv=none; d=google.com; s=arc-20160816; b=LpNu5OTzON4h++WRnKc0VmmnUtxYiWoLjS4pXH5Gfhoc6d+CiUoMmAhwamZwVA5EJn Dc5PbU/73FcJgNiFRr7MH3KmB4KusBaZBjrEKxQFSu8tIwBId3lB3w7e6YoEScmUcJ0j jwA0GKUnIRtnim/bEGm5436lhO/OeSJnOriZ+RNROma2aO+oJFtzUhlWD7HygfkoO+8p iApFAojIY2Kf4BpADhmLryudJWa425XU/m45Dt9iZiD9kiShumD2g8jvyFbQ2PZOG0O/ +UspCBHgIQ5KsNpazSYeZkxW/HQEmAzUlAyAqerQI/ucOqllflIfL33yabrvoyiu5dal hz1w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :user-agent:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=T1+xKO/DvUB8S5U2kDalhHJOS+m5PuiKZIHlnN7E9+I=; b=fygCK5iTCX0i2bzCkkRd6UJLWMQvly+9bSJkC5g8os6KIgEGXAtJcW+219zHyEuVgt df5DRhd0Z/+R6IBxV10pjFR3JFwbmnQTCXe09XXN8HrfHER6cV4pY9YsE/OvTvyVipXv qC5970NPqMQJBxrTkAQ7v/tNnhrK5lGeAA0cgAiYb+J1XQtG2WXf5UCaA4pw+AKCc7hY JV+tTeZh1pJOmnBmKjUWZIOozFL+uKZ4jENC3CsFSX7wzHN/yKO8tDPBUSl/ZT0twV6g f/Vfollf8jANhdYcJt2xIZagC6VEgIHM7SjXwsuG0eSnERAYGJGxF2wK7y8wmN/Q4WTi n7qA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=iA7XImCu; spf=pass (google.com: domain of stable-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=stable-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id j13si2929758pjn.73.2021.04.09.02.57.19; Fri, 09 Apr 2021 02:57:19 -0700 (PDT) Received-SPF: pass (google.com: domain of stable-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=iA7XImCu; spf=pass (google.com: domain of stable-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=stable-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233445AbhDIJ5a (ORCPT + 12 others); Fri, 9 Apr 2021 05:57:30 -0400 Received: from mail.kernel.org ([198.145.29.99]:44824 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233666AbhDIJ4i (ORCPT ); Fri, 9 Apr 2021 05:56:38 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id DF1D761182; Fri, 9 Apr 2021 09:56:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1617962184; bh=I4X2BwyE5he9AmSsD0uodM8qJTSafLXvfC8PLNLBUk4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iA7XImCueKZDUtCa+cyE4Lupoga22w+aTZWbLpLShLHiqXM0bQk0PrZx31Bq3Hltd Cb+3kPvjtHYil/G4f4DizQ2aQoik4TnhNtFNWBAc8u8ae1PWWOCa8zD45jdbNxLI6J ihXdW++v0y5PiR5p4Sh3Vu9bSmSWY+qY7sKroadw= 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 4.14 07/14] x86/build: Turn off -fcf-protection for realmode targets Date: Fri, 9 Apr 2021 11:53:32 +0200 Message-Id: <20210409095300.627874417@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210409095300.391558233@linuxfoundation.org> References: <20210409095300.391558233@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@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(-) -- 2.30.2 diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 9f33a69b5605..146aadeb7c8e 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -35,7 +35,7 @@ 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)