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=-10.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, T_DKIMWL_WL_MED,URIBL_BLOCKED,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=ham 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 2A0F5C433F5 for ; Fri, 7 Sep 2018 20:26:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C768C20645 for ; Fri, 7 Sep 2018 20:26:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="Zqp1SGab" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C768C20645 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726598AbeIHBJM (ORCPT ); Fri, 7 Sep 2018 21:09:12 -0400 Received: from mail-pg1-f202.google.com ([209.85.215.202]:45880 "EHLO mail-pg1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726060AbeIHBJM (ORCPT ); Fri, 7 Sep 2018 21:09:12 -0400 Received: by mail-pg1-f202.google.com with SMTP id 186-v6so7627273pgc.12 for ; Fri, 07 Sep 2018 13:26:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:message-id:mime-version:subject:from:to:cc; bh=HPeS88KNIjQVlbvUr7jP09u90T8uU//QpUwSNI1RzRs=; b=Zqp1SGabBIHAg7e/rC0NyUUFXDZE0UjIA0BzorcSjGmpA4fkREYhT8KuaPFDj2S95B RjWoNs426NWUePhol4xuCOU76cqu4AAYk1d162dVaBWCSYLY3Kfal8aOzEbxLctbg2FI Osk+0P41AZoNvmwQEucR1ABTCvbo5ICdlLbHFL4y5z9KE3alTPk+R1JdQkvPADOBcEP8 mAoFjHwVtgL1ukxmtkoqzSf9+wqZ375thEUwXJmogg/SBXhTJ1/qou8pIAVsWpOw7GVV 66iWcfKpyzsU2koHckzsb0mfmbXetuywq48v7dtWs6NalX76q+UaC5AjM1jS+WxxUNoW Qviw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:message-id:mime-version:subject:from:to:cc; bh=HPeS88KNIjQVlbvUr7jP09u90T8uU//QpUwSNI1RzRs=; b=XuaojxcF6NJeeJOAfIEn7nHQLoJ3C/3I3aWz5uMqySVyb7wq+i89uj+kcKylBReGEB keaY5thigEQiFIoOyYLJP5y15Bn+0Rsw8yPSMi2FavDH4aE8KGHgPgxSpddaDzfM/PxQ XOoZjFq6O/D7xpZRu1w0PZS06HwLZE4xWfKkOhfKDq0vP5Emj1aHHi9/YEaJYcCYjl8c IxYRGc+Y6eB8HxxOO7U7NQyVw/CVCevqr7dhrrR8N2zypkC9IvzO5UWczcpT6+TQBnWL 0ZlrGFWZyQtcwqSXIygPM6QKEYbiNQApZYq4lwN3h5PtYFYf3Bq3StchuXeFVSHtROja tXYA== X-Gm-Message-State: APzg51D1O7o+8DA0qHTVm/A/CKuVUvWoepiO4pgK5lpdxYf9ojdfxXbQ mMSdLO7YFSMKnlU7pYb4pAgbuA1nebOSOfjPxgM= X-Google-Smtp-Source: ANB0VdapJIpg9AjZ67qlFdbFK5jZ8iDoeXkLaR1F/Ca2cS4joAdlXWRMExp8sbf5UbPtyDwLGXmZxFCM7+G+voefBOs= X-Received: by 2002:a63:a505:: with SMTP id n5-v6mr715951pgf.31.1536351997128; Fri, 07 Sep 2018 13:26:37 -0700 (PDT) Date: Fri, 7 Sep 2018 13:26:16 -0700 Message-Id: <20180907202618.258569-1-ndesaulniers@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.19.0.rc2.392.g5ba43deb5a-goog Subject: [PATCH] x86/boot: define CC_HAVE_ASM_GOTO From: Nick Desaulniers To: tglx@linutronix.de, mingo@redhat.com Cc: Nick Desaulniers , "H. Peter Anvin" , x86@kernel.org, "Kirill A. Shutemov" , Masahiro Yamada , Borislav Petkov , Matthias Kaehlcke , Kees Cook , Cao jin , linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since this file steamrolls KBUILD_CFLAGS, we have to redefine these symbols. This will prevent warnings in source files in this directory when Clang supports asm goto. Signed-off-by: Nick Desaulniers --- arch/x86/boot/compressed/Makefile | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile index 28764dacf018..158c0b4e178a 100644 --- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -56,6 +56,13 @@ KBUILD_LDFLAGS += $(shell $(LD) --help 2>&1 | grep -q "\-z noreloc-overflow" \ endif LDFLAGS_vmlinux := -T +# check for 'asm goto' +ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y) + CC_HAVE_ASM_GOTO := 1 + KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO + KBUILD_AFLAGS += -DCC_HAVE_ASM_GOTO +endif + hostprogs-y := mkpiggy HOST_EXTRACFLAGS += -I$(srctree)/tools/include -- 2.19.0.rc2.392.g5ba43deb5a-goog