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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,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 BFBC9C43382 for ; Tue, 25 Sep 2018 07:20:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8423321480 for ; Tue, 25 Sep 2018 07:20:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8423321480 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de 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 S1728675AbeIYN0h (ORCPT ); Tue, 25 Sep 2018 09:26:37 -0400 Received: from mx2.suse.de ([195.135.220.15]:39672 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727588AbeIYN0h (ORCPT ); Tue, 25 Sep 2018 09:26:37 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id E59BAAF41; Tue, 25 Sep 2018 07:20:25 +0000 (UTC) From: Andreas Schwab To: Zong Li Cc: hch@infradead.org, palmer@sifive.com, aou@eecs.berkeley.edu, vincentc@andestech.com, zong@andestech.com, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 3/5] lib: Add umoddi3 and udivmoddi4 of GCC library routines References: <2ccc6c0758624dbb22f6fe451a3e476a000108ef.1537260207.git.zongbox@gmail.com> <20180921070006.GC8401@infradead.org> X-Yow: I think I am an overnight sensation right now!! Date: Tue, 25 Sep 2018 09:20:25 +0200 In-Reply-To: (Zong Li's message of "Tue, 25 Sep 2018 10:19:55 +0800") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sep 25 2018, Zong Li wrote: > The RV32 need the umoddi3 to do modulo when the operands are long long > type, like other libraries implementation such as ucmpdi2, lshrdi3 and > so on. I encounter the undefined reference 'umoddi3' when I use the in > house dma driver, although it is in house driver, but I think that > umoddi3 is a common function for RV32. You probably should use the macros from instead. Andreas. -- Andreas Schwab, SUSE Labs, schwab@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different."