{"id":809346,"url":"http://patchwork.ozlabs.org/api/1.0/patches/809346/?format=json","project":{"id":7,"url":"http://patchwork.ozlabs.org/api/1.0/projects/7/?format=json","name":"Linux network development","link_name":"netdev","list_id":"netdev.vger.kernel.org","list_email":"netdev@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null},"msgid":"<20170903182549.30866-4-joelaf@google.com>","date":"2017-09-03T18:25:49","name":"[RFC,v3,4/4] samples/bpf: Add documentation on cross compilation","commit_ref":null,"pull_url":null,"state":"rfc","archived":true,"hash":"a502c1f4deb6a793e91895ed314bf01e423d8e9b","submitter":{"id":72107,"url":"http://patchwork.ozlabs.org/api/1.0/people/72107/?format=json","name":"Joel Fernandes","email":"joelaf@google.com"},"delegate":{"id":34,"url":"http://patchwork.ozlabs.org/api/1.0/users/34/?format=json","username":"davem","first_name":"David","last_name":"Miller","email":"davem@davemloft.net"},"mbox":"http://patchwork.ozlabs.org/project/netdev/patch/20170903182549.30866-4-joelaf@google.com/mbox/","series":[{"id":1268,"url":"http://patchwork.ozlabs.org/api/1.0/series/1268/?format=json","date":"2017-09-03T18:23:21","name":"Add cross-compilation support to eBPF samples","version":3,"mbox":"http://patchwork.ozlabs.org/series/1268/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/809346/checks/","tags":{},"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; dkim=pass (2048-bit key;\n\tunprotected) header.d=google.com header.i=@google.com\n\theader.b=\"h7OOTJ34\"; dkim-atps=neutral"],"Received":["from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xlhJN1Hvfz9sDB\n\tfor ;\n\tMon, 4 Sep 2017 04:26:28 +1000 (AEST)","(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1752879AbdICS0N (ORCPT );\n\tSun, 3 Sep 2017 14:26:13 -0400","from mail-pg0-f53.google.com ([74.125.83.53]:35882 \"EHLO\n\tmail-pg0-f53.google.com\" rhost-flags-OK-OK-OK-OK) by vger.kernel.org\n\twith ESMTP id S1752613AbdICS0K (ORCPT\n\t); Sun, 3 Sep 2017 14:26:10 -0400","by mail-pg0-f53.google.com with SMTP id r133so13087041pgr.3\n\tfor ; Sun, 03 Sep 2017 11:26:10 -0700 (PDT)","from joelaf-glaptop0.roam.corp.google.com\n\t(74.sub-70-213-6.myvzw.com. [70.213.6.74])\n\tby smtp.gmail.com with ESMTPSA id\n\tp64sm7627440pfi.168.2017.09.03.11.26.07\n\t(version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128);\n\tSun, 03 Sep 2017 11:26:08 -0700 (PDT)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=google.com; s=20161025;\n\th=from:to:cc:subject:date:message-id:in-reply-to:references;\n\tbh=Bh22PkrDdXvH3tuYetlMNT0bvm48TT3gelrmZ1426dM=;\n\tb=h7OOTJ34FDEwDZbtHj9YcDoyYISePEXEX1V68kOkCvVK6Gw7Q3zkFIAe9P+grMAz/b\n\ttD2zAYdwdzQy6VIIbTKRXRj3wH28g1D1xJSyc0Q8p5G5pXYvRJE4oN4TyclhfU1xCNVt\n\tg8I+9KikNtUtf2ee+4H9/HfUqanMMb0fT0MZpWG7OUafrw6moz2YUCohGrNcdJJF5W3D\n\tRIfQVEuLG/WFyLtSonOlNkiyJMpPSJ7q+qmldk48cYmGCkNkt/eP1WQl1lTvnxZ9/uAC\n\t8x+PQn2pYrJon3wq5thl54E5V9AtDveRqOqZPDo2qXfTg6pDLKW8Ol2t5y8E+v4o9hzw\n\t2AoQ==","X-Google-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20161025;\n\th=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to\n\t:references;\n\tbh=Bh22PkrDdXvH3tuYetlMNT0bvm48TT3gelrmZ1426dM=;\n\tb=eo7Una5l1fcoG1/lX8LCNxDKIipij+/sLw1xYp+SsZ5HnXeur50evoDGf8dp8o4MUV\n\toMQ7O9M+wyYlf/XDZ3795LH83DIkkpQUGqyCtbF39JZxS6TGhicDycQFble3efj2AjAN\n\tQ/79osWRl80tttjuEDyntHKlVr5ceUZdJnkcU7i3iesyT/g3oAhdZo2tzln4soWYgCsx\n\tTsfGoqLEQe+bcxQHTOEOz7fh4mJIo1SSzeCkZe0X0lObALVeaNZDXSvTbZr54i0JH8Ts\n\ttFYIQkcrt9cHq9BSCtsoZtahQIXXohPBFbrQq85AlhyPQyT7uP0Cv5o3wpdotAS61UQF\n\tnZbA==","X-Gm-Message-State":"AHPjjUgOzymvaBlY5OqO78jx9DgtfJFWNyDHOD+AZblVdPpRjSnJuL9S\n\t5TxZav/68adxw0wE9Po0Lw==","X-Google-Smtp-Source":"ADKCNb41FxGNR7xbAvYCr6QFNfrtyzK8Ua3OB6oFKevtbVx2kEidm8qYgPm62YV5/TZiJU6xo2vinQ==","X-Received":"by 10.98.212.87 with SMTP id u23mr4934775pfl.95.1504463169346;\n\tSun, 03 Sep 2017 11:26:09 -0700 (PDT)","From":"Joel Fernandes ","To":"linux-kernel@vger.kernel.org, netdev@vger.kernel.org","Cc":"kernel-team@android.com, Juri Lelli ,\n\tAlison Chaiken , Chenbo Feng ,\n\tJoel Fernandes , Alexei Starovoitov ,\n\tDaniel Borkmann ,\n\tDavid Miller ","Subject":"[PATCH RFC v3 4/4] samples/bpf: Add documentation on cross\n\tcompilation","Date":"Sun, 3 Sep 2017 11:25:49 -0700","Message-Id":"<20170903182549.30866-4-joelaf@google.com>","X-Mailer":"git-send-email 2.14.1.581.gf28d330327-goog","In-Reply-To":"<20170903182549.30866-1-joelaf@google.com>","References":"<20170903182549.30866-1-joelaf@google.com>","Sender":"netdev-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"netdev@vger.kernel.org"},"content":"CC: Alexei Starovoitov \nCC: Daniel Borkmann \nCC: David Miller \nSigned-off-by: Joel Fernandes \n---\n samples/bpf/README.rst | 10 ++++++++++\n 1 file changed, 10 insertions(+)","diff":"diff --git a/samples/bpf/README.rst b/samples/bpf/README.rst\nindex 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+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","prefixes":["RFC","v3","4/4"]}