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=-5.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 3C1AEC433E7 for ; Wed, 2 Sep 2020 15:43:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 167E1208CA for ; Wed, 2 Sep 2020 15:43:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727955AbgIBPni (ORCPT ); Wed, 2 Sep 2020 11:43:38 -0400 Received: from pegase1.c-s.fr ([93.17.236.30]:61753 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726536AbgIBPnc (ORCPT ); Wed, 2 Sep 2020 11:43:32 -0400 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4BhSrw4krPz9txTB; Wed, 2 Sep 2020 17:43:28 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id nFwfpdFhuBJU; Wed, 2 Sep 2020 17:43:28 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4BhSrw21Q6z9txS3; Wed, 2 Sep 2020 17:43:28 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id BEA7E8B7EF; Wed, 2 Sep 2020 17:43:29 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id tsIuuS3JiTII; Wed, 2 Sep 2020 17:43:29 +0200 (CEST) Received: from [192.168.4.90] (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 3A79A8B7EA; Wed, 2 Sep 2020 17:43:28 +0200 (CEST) Subject: Re: [PATCH 2/2] powerpc/vdso32: link vdso64 with linker To: Segher Boessenkool Cc: Nick Desaulniers , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Joe Lawrence , Kees Cook , Fangrui Song , linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com, Paul Mackerras , linuxppc-dev@lists.ozlabs.org References: <20200901222523.1941988-1-ndesaulniers@google.com> <20200901222523.1941988-3-ndesaulniers@google.com> <20200902141431.GV28786@gate.crashing.org> From: Christophe Leroy Message-ID: <0c895acf-b6d7-baaf-d613-236f8be8e1fe@csgroup.eu> Date: Wed, 2 Sep 2020 17:43:03 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: <20200902141431.GV28786@gate.crashing.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: fr Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Le 02/09/2020 à 16:14, Segher Boessenkool a écrit : > Hi! > > On Wed, Sep 02, 2020 at 06:46:45AM +0000, Christophe Leroy wrote: >> ld crashes: >> >> LD arch/powerpc/kernel/vdso32/vdso32.so.dbg >> /bin/sh: line 1: 23780 Segmentation fault (core dumped) >> ppc-linux-ld -EB -m elf32ppc -shared -soname linux-vdso32.so.1 >> --eh-frame-hdr --orphan-handling=warn -T >> arch/powerpc/kernel/vdso32/vdso32.lds >> arch/powerpc/kernel/vdso32/sigtramp.o >> arch/powerpc/kernel/vdso32/gettimeofday.o >> arch/powerpc/kernel/vdso32/datapage.o >> arch/powerpc/kernel/vdso32/cacheflush.o >> arch/powerpc/kernel/vdso32/note.o arch/powerpc/kernel/vdso32/getcpu.o -o >> arch/powerpc/kernel/vdso32/vdso32.so.dbg >> make[4]: *** [arch/powerpc/kernel/vdso32/vdso32.so.dbg] Error 139 >> >> >> [root@localhost linux-powerpc]# ppc-linux-ld --version >> GNU ld (GNU Binutils) 2.26.20160125 > > [ Don't build as root :-P ] > > Try with a newer ld? If it still happens with current versions, please > open a bug report? https://sourceware.org/bugzilla Yes it works with 2.30 and 2.34 But minimum for building kernel is supposed to be 2.23 Christophe