Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751164AbbGEIZ4 (ORCPT ); Sun, 5 Jul 2015 04:25:56 -0400 Received: from blu004-omc1s19.hotmail.com ([65.55.116.30]:51623 "EHLO BLU004-OMC1S19.hotmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750751AbbGEIZp (ORCPT ); Sun, 5 Jul 2015 04:25:45 -0400 X-TMN: [zPdRSL1hw4m3DHiwnP+bJMHMGZll5Cab] X-Originating-Email: [xili_gchen_5257@hotmail.com] Message-ID: Date: Sun, 5 Jul 2015 06:30:48 +0800 From: Chen Gang User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: "jesper.nilsson@axis.com" , "starvik@axis.com" CC: "linux-kernel@vger.kernel.org" , "linux-cris-kernel@axis.com" Subject: [Consult] cris: arch-v10: About $dtp0 register Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 04 Jul 2015 22:29:39.0189 (UTC) FILETIME=[EA172250:01D0B6A8] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1220 Lines: 33 Hello Maintainers: I want to consult, whether arch-v10 supports $dtp0 register: - Kernel has already used it in arch/cris/arch-v10/kernel/kgdb.c. - But upstream gas 2.25.51 can not recognize it for arch-v10, for the same kgdb.s file which contents $dtp0: "/upstream/release-cris/bin/cris-gchen-linux-as ./kgdb.s -o kgdb.o" will be ok. "/upstream/release-cris/bin/cris-gchen-linux-as --march=v10 ./kgdb.s -o kgdb.o" will cause "Error: Illegal operands". For me, I guess, it is upstream toolchain's issue, but I have no the related ISA documentations (common ISA and v10 special ISA), so at present I can not be sure about it (related informations are welcomed). And after this issue, excluding warnings, the cris next-20150702 can pass allmodconfig with the current latest upstream master branch toolchain. :-) Welcome any ideas, suggestions and completions. Thanks. -- Chen Gang Open, share, and attitude like air, water, and life which God blessed -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/