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 38230C0044C for ; Thu, 1 Nov 2018 12:56:57 +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 DA4BC20657 for ; Thu, 1 Nov 2018 12:56:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DA4BC20657 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 42m4wQ5SsZzF3NM for ; Thu, 1 Nov 2018 23:56:54 +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 [203.11.71.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 42m4ht5FGNzF3Ln for ; Thu, 1 Nov 2018 23:46:54 +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 42m4hs6PHXzB4XV; Thu, 1 Nov 2018 23:46:53 +1100 (AEDT) X-powerpc-patch-notification: thanks X-powerpc-patch-commit: 9c87156cce5a63735d1218f0096a65c50a7a32aa In-Reply-To: <20181031010934.3627-1-joel@jms.id.au> To: Joel Stanley , "Naveen N . Rao" , linuxppc-dev@lists.ozlabs.org From: Michael Ellerman Subject: Re: powerpc/xmon: Relax frame size for clang Message-Id: <42m4hs6PHXzB4XV@ozlabs.org> Date: Thu, 1 Nov 2018 23:46:53 +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 Wed, 2018-10-31 at 01:09:34 UTC, Joel Stanley wrote: > When building with clang (8 trunk, 7.0 release) the frame size limit is > hit: > > arch/powerpc/xmon/xmon.c:452:12: warning: stack frame size of 2576 > bytes in function 'xmon_core' [-Wframe-larger-than=] > > Some investigation by Naveen indicates this is due to clang saving the > addresses to printf format strings on the stack. > > While this issue is investigated, bump up the frame size limit for xmon > when building with clang. > > Link: https://github.com/ClangBuiltLinux/linux/issues/252 > Signed-off-by: Joel Stanley Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/9c87156cce5a63735d1218f0096a65 cheers