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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED 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 CD69CC28CF8 for ; Mon, 15 Oct 2018 04:14:09 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (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 7286320652 for ; Mon, 15 Oct 2018 04:14:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7286320652 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 42YQ733LFWzF3BP for ; Mon, 15 Oct 2018 15:14:07 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Received: from ozlabs.org (bilbo.ozlabs.org [IPv6:2401:3900:2:1::2]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 42YPqw5PRhzF13h for ; Mon, 15 Oct 2018 15:01:00 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Received: by ozlabs.org (Postfix, from userid 1034) id 42YPqw3Xpqz9sDQ; Mon, 15 Oct 2018 15:01:00 +1100 (AEDT) X-powerpc-patch-notification: thanks X-powerpc-patch-commit: aea447141c7e7824b81b49acd1bc785506fba46e In-Reply-To: <20180917074621.25066-1-joel@jms.id.au> To: Joel Stanley , linuxppc-dev@lists.ozlabs.org From: Michael Ellerman Subject: Re: powerpc: Disable -Wbuiltin-requires-header when setjmp is used Message-Id: <42YPqw3Xpqz9sDQ@ozlabs.org> Date: Mon, 15 Oct 2018 15:01:00 +1100 (AEDT) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nick Desaulniers Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Mon, 2018-09-17 at 07:46:21 UTC, Joel Stanley wrote: > The powerpc kernel uses setjmp which causes a warning when building with > clang: > > CC arch/powerpc/xmon/xmon.o > In file included from arch/powerpc/xmon/xmon.c:51: > ./arch/powerpc/include/asm/setjmp.h:15:13: error: declaration of > built-in function 'setjmp' requires inclusion of the header > [-Werror,-Wbuiltin-requires-header] > extern long setjmp(long *); > ^ > ./arch/powerpc/include/asm/setjmp.h:16:13: error: declaration of > built-in function 'longjmp' requires inclusion of the header > [-Werror,-Wbuiltin-requires-header] > extern void longjmp(long *, long); > ^ > > This *is* the header and we're not using the built-in setjump but > rather the one in arch/powerpc/kernel/misc.S. As the compiler warning > does not make sense, it for the files where setjmp is used. > > Signed-off-by: Joel Stanley > Reviewed-by: Nick Desaulniers Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/aea447141c7e7824b81b49acd1bc78 cheers