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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 66E59C43217 for ; Thu, 1 Dec 2022 16:01:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232105AbiLAQBG (ORCPT ); Thu, 1 Dec 2022 11:01:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47254 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230366AbiLAQBD (ORCPT ); Thu, 1 Dec 2022 11:01:03 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 56F06B0DDB for ; Thu, 1 Dec 2022 08:01:02 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 0223CB81F5D for ; Thu, 1 Dec 2022 16:01:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 320F0C433C1; Thu, 1 Dec 2022 16:00:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1669910459; bh=0D/sjN/A+0rsU/ONrX3z3ntgIBfDN4k8Kf5eOrgywsg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=WyXHaE7UfpiSavmT6vQS4jiBSuk8iUhhtklwNflBsd5hthuVIh0L/meqN/w8aQjFL pay8eEk7brCxUtrc2BDRFp8Uqgw3nERM4wYO+IuEwn3DpRx9EaAohl3eC2dRPAs8p8 rdAlJGCIoJpEhqTgR2cIAvZSF8LrbbiaI89DnnHCPTx7gxGHHRNrZqdsDzh5j51cxz THwguBclT1VvzsrE3yXOqA6ggNVgA1KMxW0OKA/dxCR1hEQBNspCE0g8NgzK1i9SFl T4ztCksZWkHWF6DPZMYc7xFXx8lWa6HaOUULgiq7kPPZ9lRQMnBHnROfw/2pFUvf3c KxddVhInUyFdQ== Date: Thu, 1 Dec 2022 09:00:57 -0700 From: Nathan Chancellor To: Miquel Raynal Cc: kernel test robot , Mikhail Zhilkin , llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, NOGUCHI Hiroshi Subject: Re: ld.lld: error: undefined symbol: __udivdi3 Message-ID: References: <202212010140.pIueEBNb-lkp@intel.com> <20221201091610.524f7786@xps-13> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221201091610.524f7786@xps-13> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Dec 01, 2022 at 09:16:10AM +0100, Miquel Raynal wrote: > Hi Mikhail, Hiroshi, > > lkp@intel.com wrote on Thu, 1 Dec 2022 01:46:36 +0800: > > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > > head: 01f856ae6d0ca5ad0505b79bf2d22d7ca439b2a1 > > commit: 9b78ef0c7997052e9eaa0f7a4513d546fa17358c mtd: parsers: add support for Sercomm partitions > > date: 6 months ago > > config: mips-randconfig-r033-20221128 > > compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 6e4cea55f0d1104408b26ac574566a0e4de48036) > > reproduce (this is a W=1 build): > > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > > chmod +x ~/bin/make.cross > > # install mips cross compiling tool for clang build > > # apt-get install binutils-mipsel-linux-gnu > > # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9b78ef0c7997052e9eaa0f7a4513d546fa17358c > > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > > git fetch --no-tags linus master > > git checkout 9b78ef0c7997052e9eaa0f7a4513d546fa17358c > > # save the config file > > mkdir build_dir && cp config build_dir/.config > > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash > > > > If you fix the issue, kindly add following tag where applicable > > | Reported-by: kernel test robot > > > > All errors (new ones prefixed by >>): > > > > >> ld.lld: error: undefined symbol: __udivdi3 > > >>> referenced by scpart.c > > >>> mtd/parsers/scpart.o:(scpart_parse) in archive drivers/built-in.a > > > > Can you please try to reproduce this with a mips toolchain as advised > and send a fix? For what it's worth, this is likely our bug: https://github.com/ClangBuiltLinux/linux/issues/1635 It sounds like there are some merged LLVM patches that should help but I guess not based on this report... Cheers, Nathan