[{"id":1772061,"web_url":"http://patchwork.ozlabs.org/comment/1772061/","msgid":"","list_archive_url":null,"date":"2017-09-20T16:50:07","subject":"Re: [PATCH v4 4/4] samples/bpf: Add documentation on cross\n\tcompilation","submitter":{"id":18663,"url":"http://patchwork.ozlabs.org/api/people/18663/","name":"Randy Dunlap","email":"rdunlap@infradead.org"},"content":"On 09/20/17 09:11, Joel Fernandes wrote:\n> Acked-by: Alexei Starovoitov \n> Signed-off-by: Joel Fernandes \n> ---\n> samples/bpf/README.rst | 10 ++++++++++\n> 1 file changed, 10 insertions(+)\n> \n> diff --git a/samples/bpf/README.rst b/samples/bpf/README.rst\n> index 79f9a58f1872..2b906127ef54 100644\n> --- a/samples/bpf/README.rst\n> +++ b/samples/bpf/README.rst\n> @@ -64,3 +64,13 @@ It is also possible to point make to the newly compiled 'llc' or\n> 'clang' command via redefining LLC or CLANG on the make command line::\n> \n> make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang\n> +\n> +Cross compiling samples\n> +-----------------------\n> +Inorder to cross-compile, say for arm64 targets, export CROSS_COMPILE and ARCH\n\n In order to\n\n> +environment variables before calling make. This will direct make to build\n> +samples for the cross target.\n> +\n> +export ARCH=arm64\n> +export CROSS_COMPILE=\"aarch64-linux-gnu-\"\n> +make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang\n>","headers":{"Return-Path":"","X-Original-To":"patchwork-incoming@ozlabs.org","Delivered-To":"patchwork-incoming@ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=)","ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n\tunprotected) header.d=infradead.org header.i=@infradead.org\n\theader.b=\"Huu4xM9W\"; dkim-atps=neutral"],"Received":["from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xy5Mz1vffz9t2W\n\tfor ;\n\tThu, 21 Sep 2017 02:50:39 +1000 (AEST)","(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1751378AbdITQu1 (ORCPT );\n\tWed, 20 Sep 2017 12:50:27 -0400","from bombadil.infradead.org ([65.50.211.133]:35114 \"EHLO\n\tbombadil.infradead.org\" rhost-flags-OK-OK-OK-OK) by vger.kernel.org\n\twith ESMTP id S1750973AbdITQu0 (ORCPT\n\t); Wed, 20 Sep 2017 12:50:26 -0400","from static-50-53-52-16.bvtn.or.frontiernet.net ([50.53.52.16]\n\thelo=midway.dunlap)\n\tby bombadil.infradead.org with esmtpsa (Exim 4.87 #1 (Red Hat Linux))\n\tid 1duiCQ-0003IH-4H; Wed, 20 Sep 2017 16:50:10 +0000"],"DKIM-Signature":"v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding:\n\tContent-Type:In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To:\n\tSubject:Sender:Reply-To:Content-ID:Content-Description:Resent-Date:\n\tResent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:\n\tList-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive;\n\tbh=q8okiZ/QFMSyCzvJEBvsaGM83MfMsnEATJuQDvHDNYs=;\n\tb=Huu4xM9WafgImJdapYGo8Dlo5\n\ttR6+kSABBbYZLUl7vhEma9lbCC5kHIa3rQo1MkstIWU/BezRyqKpy/VE9xLy4MT60yN86cjFqZh1w\n\toVH7iemHRTTXVh8UZO4DLfxpDdjLgAJxi+acZCmMVfzMQ5RlyMaGICMBLFc6Z7y37jSbIM57xXFej\n\tBp2u5LcfJ4CspvzuiJaYEi/7ZTlJh3lg+HycaP7OYm1K8o43VTAqx3WEmEDZm4g20Y1rtnXlsKu/m\n\tMtdKL+p7+cnhrYcE55T20oq0hXHHdXrpKyhiEh4H2xZet7VwGbnpiTvRinzlteWIICwUPGiqIpY1L\n\t7K2lqr4qQ==;","Subject":"Re: [PATCH v4 4/4] samples/bpf: Add documentation on cross\n\tcompilation","To":"Joel Fernandes , linux-kernel@vger.kernel.org","Cc":"netdev@vger.kernel.org, alison@she-devel.com, juri.lelli@arm.com,\n\tfengc@google.com, daniel@iogearbox.net, davem@davemloft.net,\n\tast@kernel.org, kernel-team@android.com","References":"<20170920161159.25747-1-joelaf@google.com>\n\t<20170920161159.25747-4-joelaf@google.com>","From":"Randy Dunlap ","Message-ID":"","Date":"Wed, 20 Sep 2017 09:50:07 -0700","User-Agent":"Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101\n\tThunderbird/52.3.0","MIME-Version":"1.0","In-Reply-To":"<20170920161159.25747-4-joelaf@google.com>","Content-Type":"text/plain; charset=utf-8","Content-Language":"en-US","Content-Transfer-Encoding":"7bit","Sender":"netdev-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"netdev@vger.kernel.org"}},{"id":1772255,"web_url":"http://patchwork.ozlabs.org/comment/1772255/","msgid":"<59C2DCE3.7050101@iogearbox.net>","list_archive_url":null,"date":"2017-09-20T21:25:55","subject":"Re: [PATCH v4 4/4] samples/bpf: Add documentation on cross\n\tcompilation","submitter":{"id":65705,"url":"http://patchwork.ozlabs.org/api/people/65705/","name":"Daniel Borkmann","email":"daniel@iogearbox.net"},"content":"On 09/20/2017 06:11 PM, Joel Fernandes wrote:\n> Acked-by: Alexei Starovoitov \n> Signed-off-by: Joel Fernandes \n\n(Minor typo pointed out by Randy, but rest looks fine.)\n\nAcked-by: Daniel Borkmann ","headers":{"Return-Path":"","X-Original-To":"patchwork-incoming@ozlabs.org","Delivered-To":"patchwork-incoming@ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=)","Received":["from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xyCTx17M2z9s8J\n\tfor ;\n\tThu, 21 Sep 2017 07:26:13 +1000 (AEST)","(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1751833AbdITV0B (ORCPT );\n\tWed, 20 Sep 2017 17:26:01 -0400","from www62.your-server.de ([213.133.104.62]:45557 \"EHLO\n\twww62.your-server.de\" rhost-flags-OK-OK-OK-OK) by vger.kernel.org\n\twith ESMTP id S1751621AbdITV0A (ORCPT\n\t); Wed, 20 Sep 2017 17:26:00 -0400","from [85.7.161.218] (helo=localhost.localdomain)\n\tby www62.your-server.de with esmtpsa (TLSv1.2:DHE-RSA-AES256-SHA:256)\n\t(Exim 4.85_2) (envelope-from )\n\tid 1dumVI-0000FT-3O; Wed, 20 Sep 2017 23:25:56 +0200"],"Message-ID":"<59C2DCE3.7050101@iogearbox.net>","Date":"Wed, 20 Sep 2017 23:25:55 +0200","From":"Daniel Borkmann ","User-Agent":"Mozilla/5.0 (X11; Linux x86_64;\n\trv:31.0) Gecko/20100101 Thunderbird/31.7.0","MIME-Version":"1.0","To":"Joel Fernandes , linux-kernel@vger.kernel.org","CC":"netdev@vger.kernel.org, alison@she-devel.com, juri.lelli@arm.com,\n\tfengc@google.com, davem@davemloft.net, ast@kernel.org,\n\tkernel-team@android.com","Subject":"Re: [PATCH v4 4/4] samples/bpf: Add documentation on cross\n\tcompilation","References":"<20170920161159.25747-1-joelaf@google.com>\n\t<20170920161159.25747-4-joelaf@google.com>","In-Reply-To":"<20170920161159.25747-4-joelaf@google.com>","Content-Type":"text/plain; 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