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=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS 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 602ECC43143 for ; Thu, 13 Sep 2018 18:56:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 03E6720853 for ; Thu, 13 Sep 2018 18:56:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="kiMnEFJC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 03E6720853 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com 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 S1728159AbeINAHU (ORCPT ); Thu, 13 Sep 2018 20:07:20 -0400 Received: from mail-pf1-f195.google.com ([209.85.210.195]:42526 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727051AbeINAHU (ORCPT ); Thu, 13 Sep 2018 20:07:20 -0400 Received: by mail-pf1-f195.google.com with SMTP id l9-v6so3073699pff.9; Thu, 13 Sep 2018 11:56:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=D+tLcYepA+7PxAGF6WlL6+mmCZM8avXl6D2VNWHeTuY=; b=kiMnEFJC3c5lb68xpGZUzc6BEWG75NIZH1eu8e4hpKg0oWp10FI7kYQZ/8MFFTOZ9I QnxpDVOA3vuNMI/bPowMf5U+R62PP5rTeDVfeUkA1yEDxNP9VcPmPOrakStB6HSPKCAm furJ7mlZPs8W2/5iAGZx7MgjjwMngvYZHCHweSP3T5Qn3P7cc0WlP4qE3olSZJx2lF45 zXkPtyjamGnsxVqhVrHYVhtNMEFcsNHHchGpvn5LS8p2/vg2bmEgnt9e9oQnqb9b6Chd kzS9BmrUGmJb+cSKp9hwDLp5xOuLBD60mcqEvna5SQtZEmwD1WVYQ95UfjM2SF6DH4Q8 wLxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=D+tLcYepA+7PxAGF6WlL6+mmCZM8avXl6D2VNWHeTuY=; b=f03FKrZ6OTRYZhS5Xl5tlCo7Y1J5Hb4wfoAoloudrBGMdWTm+4fGUrE45X7nZPxcR/ C6zzsEFx3pwoeZ/1mo3qXYNA1Iw1QeQF+e2Ix8lgrIjaTuwkDJCFOllKd7CWqjCUWCEy 4cUocg44ojAMNRkak5okXy9zJNprJGE0oR8azCUpfmgzIpYyNQReezlBfSowgqr+fa97 0f7RhtJGMVlBwBSkarPh/IS9WhnNwbIp8Y1aCOSx3fShY+ByK+AENOUc1jafAkfGi8Me GzQMv7M15z4aVjqpg2YmtMCAHjwUOClSetvgLv0ixZqr9RkhxLJF/3gwPAeELbtH+XcX MQuw== X-Gm-Message-State: APzg51ADWlVjrwRJ2B5mpwEAJW1KweP+3CkOT5YB+HlAEXzZLdhaUeeM ybAQPVZ7FhNP+EZtv6pbzJI= X-Google-Smtp-Source: ANB0VdZMCINFcrfhwqcLR3mKRcGW+uagkVjeOyukvvHTuVruxmbADXcKoDMZqIzNb/dq8PNMnRWc8Q== X-Received: by 2002:a63:fd06:: with SMTP id d6-v6mr8153965pgh.348.1536864993802; Thu, 13 Sep 2018 11:56:33 -0700 (PDT) Received: from ast-mbp ([2620:10d:c090:200::6:2d6d]) by smtp.gmail.com with ESMTPSA id v72-v6sm9169863pfj.22.2018.09.13.11.56.32 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 13 Sep 2018 11:56:32 -0700 (PDT) Date: Thu, 13 Sep 2018 11:56:31 -0700 From: Alexei Starovoitov To: Arnaldo Carvalho de Melo Cc: Jakub Kicinski , Daniel Borkmann , Thomas Richter , Hendrik Brueckner , Jiri Olsa , Namhyung Kim , Linux Kernel Mailing List , Linux Networking Development Mailing List Subject: Re: [RFC/fix] Re: libbpf build broken on musl libc (Alpine Linux) Message-ID: <20180913185629.su22fnimluoezntg@ast-mbp> References: <20180910172903.GB15516@kernel.org> <20180911122218.0d2eb3f9@cakuba> <20180911121543.GB22689@kernel.org> <20180911212451.hvnyfwyvcs4yojqy@ast-mbp> <20180913183240.GF30969@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180913183240.GF30969@kernel.org> User-Agent: NeoMutt/20180223 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 13, 2018 at 03:32:40PM -0300, Arnaldo Carvalho de Melo wrote: > Em Tue, Sep 11, 2018 at 02:24:53PM -0700, Alexei Starovoitov escreveu: > > On Tue, Sep 11, 2018 at 09:15:43AM -0300, Arnaldo Carvalho de Melo wrote: > > > Em Tue, Sep 11, 2018 at 12:22:18PM +0200, Jakub Kicinski escreveu: > > > > On Mon, 10 Sep 2018 14:29:03 -0300, Arnaldo Carvalho de Melo wrote: > > > > > After lunch I'll work on a patch to fix this, > > > > Any luck? > > > > Well, we need to apply the patch below and make tools/lib/str_error_r.c > > > live in a library that libbpf and perf is linked to. > > > do you want us to take the patch or you're applying it yourself? > > Please do some testing with my perf/libbpf+str_error_r branch, it has > two patches to get this fixed, the one I sent and a prep one making > libbpf link against libapi. > > [acme@jouet perf]$ git log --oneline -2 > a7ab924b7fec (HEAD -> perf/urgent, acme.korg/perf/libbpf+str_error_r) tools lib bpf: Use str_error_r() to fix the build in Alpine Linux > fb4a79e04c2b tools lib bpf: Build and link to tools/lib/api/ https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git/commit/?h=perf/libbpf%2bstr_error_r&id=fb4a79e04c2b37ee873a3b31a3250925cf466fff we cannot do this. lib/api is GPL we cannot use it in LGPL library.