Create CI build script for Raspberry Pi (#12190)

* Create CI build script for Raspberry Pi

* Moved location of Pi build script

tensorflow/core/platform/cloud/oauth_client.cc

@@ -21,6 +21,7 @@ limitations under the License.
 #include <openssl/bio.h>
 #include <openssl/evp.h>
 #include <openssl/pem.h>
+#include <openssl/rsa.h>
 #include "tensorflow/core/lib/core/errors.h"
 #include "tensorflow/core/lib/strings/base64.h"
 #include "tensorflow/core/platform/cloud/http_request.h"

tensorflow/tools/ci_build/Dockerfile.pi

@@ -0,0 +1,20 @@
+FROM ubuntu:14.04
+
+MAINTAINER Jan Prach <jendap@google.com>
+
+# Copy and run the install scripts.
+COPY install/*.sh /install/
+RUN /install/install_bootstrap_deb_packages.sh
+RUN add-apt-repository -y ppa:openjdk-r/ppa && \
+    add-apt-repository -y ppa:george-edison55/cmake-3.x
+RUN /install/install_deb_packages.sh
+RUN /install/install_pip_packages.sh
+RUN /install/install_bazel.sh
+RUN /install/install_proto3.sh
+RUN /install/install_buildifier.sh
+RUN /install/install_auditwheel.sh
+RUN /install/install_golang.sh
+RUN /install/install_pi_toolchain.sh
+
+# Set up the master bazelrc configuration file.
+COPY install/.bazelrc /etc/bazel.bazelrc

tensorflow/tools/ci_build/install/install_pi_toolchain.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+# Copyright 2015 The TensorFlow Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ==============================================================================
+
+dpkg --add-architecture armhf
+echo 'deb [arch=armhf] http://ports.ubuntu.com/ trusty main restricted universe multiverse' >> /etc/apt/sources.list.d/armhf.list
+echo 'deb [arch=armhf] http://ports.ubuntu.com/ trusty-updates main restricted universe multiverse' >> /etc/apt/sources.list.d/armhf.list
+echo 'deb [arch=armhf] http://ports.ubuntu.com/ trusty-security main restricted universe multiverse' >> /etc/apt/sources.list.d/armhf.list
+echo 'deb [arch=armhf] http://ports.ubuntu.com/ trusty-backports main restricted universe multiverse' >> /etc/apt/sources.list.d/armhf.list
+sed -i 's#deb http://archive.ubuntu.com/ubuntu/#deb [arch=amd64] http://archive.ubuntu.com/ubuntu/#g' /etc/apt/sources.list
+apt-get update
+apt-get install -y libpython-all-dev:armhf
+echo "deb [arch=amd64] http://storage.googleapis.com/bazel-apt stable jdk1.8" | sudo tee /etc/apt/sources.list.d/bazel.list
+curl https://bazel.build/bazel-release.pub.gpg | sudo apt-key add -
+apt-get update
+rm -rf /usr/local/bin/bazel
+apt-get install -y bazel python python-numpy python-dev python-pip

tensorflow/tools/ci_build/pi/build_raspberry_pi.sh

@@ -18,7 +18,7 @@ set -e
 # By default this builds packages for the Pi Two and Three only, since the NEON support
 # this allows makes calculations many times faster. To support the Pi One or Zero, pass
 # PI_ONE as the first argument to the script, for example:
-# third_party/toolchains/cpus/arm/build_raspberry_pi.sh PI_ONE
+# tensorflow/tools/ci_build/pi/build_raspberry_pi.sh PI_ONE
 #
 # To install the cross-compilation support for Python this script needs on Ubuntu Trusty, run
 # something like these steps, after backing up your original /etc/apt/sources.list file:
@@ -36,6 +36,17 @@ set -e
 
 yes '' | ./configure
 
+# We need to update the Eigen version, because of compiler failures on ARM when
+# using the version currently (Aug 10th 2017) pulled by mainline TensorFlow. We
+# should be able to get rid of this hack once
+# https://github.com/tensorflow/tensorflow/issues/9697 is addressed.
+sed -i 's/f3a22f35b044/d781c1de9834/g' tensorflow/workspace.bzl
+sed -i 's/ca7beac153d4059c02c8fc59816c82d54ea47fe58365e8aded4082ded0b820c4/a34b208da6ec18fa8da963369e166e4a368612c14d956dd2f9d7072904675d9b/g' tensorflow/workspace.bzl
+
+# Fix for curl build problem in 32-bit, see https://stackoverflow.com/questions/35181744/size-of-array-curl-rule-01-is-negative
+sudo sed -i 's/define CURL_SIZEOF_LONG 8/define CURL_SIZEOF_LONG 4/g' /usr/include/curl/curlbuild.h
+sudo sed -i 's/define CURL_SIZEOF_CURL_OFF_T 8/define CURL_SIZEOF_CURL_OFF_T 4/g' /usr/include/curl/curlbuild.h
+
 if [[ $1 == "PI_ONE" ]]; then
   PI_COPTS="--copt=-march=armv6 --copt=-mfpu=vfp"
   echo "Building for the Pi One/Zero, with no NEON support"
@@ -55,18 +66,19 @@ bazel build -c opt ${PI_COPTS} \
   //tensorflow/tools/benchmark:benchmark_model \
   //tensorflow/tools/pip_package:build_pip_package
 
-TMPDIR=$(mktemp -d -t tmp.XXXXXXXXXX)
-echo "Final outputs will go to ${TMPDIR}"
+OUTDIR=bazel-out/pi
+mkdir -p ${OUTDIR}
+echo "Final outputs will go to ${OUTDIR}"
 
 # Build a universal wheel.
 BDIST_OPTS="--universal" \
-  bazel-bin/tensorflow/tools/pip_package/build_pip_package "${TMPDIR}"
+  bazel-bin/tensorflow/tools/pip_package/build_pip_package "${OUTDIR}"
 
-OLD_FN=$(ls "${TMPDIR}" | grep \.whl)
+OLD_FN=$(ls "${OUTDIR}" | grep \.whl)
 SUB='s/tensorflow-([^-]+)-([^-]+)-.*/tensorflow-\1-\2-none-any.whl/; print'
 NEW_FN=$(echo "${OLD_FN}" | perl -ne "${SUB}")
-mv "${TMPDIR}/${OLD_FN}" "${TMPDIR}/${NEW_FN}"
-cp bazel-bin/tensorflow/tools/benchmark/benchmark_model "${TMPDIR}"
+mv "${OUTDIR}/${OLD_FN}" "${OUTDIR}/${NEW_FN}"
+cp bazel-bin/tensorflow/tools/benchmark/benchmark_model "${OUTDIR}"
 
 echo "Output can be found here:"
-find "${TMPDIR}"
+find "${OUTDIR}"