diff options
Diffstat (limited to 'third_party/toolchains/cpus/arm/build_raspberry_pi.sh')
| -rwxr-xr-x | third_party/toolchains/cpus/arm/build_raspberry_pi.sh | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/third_party/toolchains/cpus/arm/build_raspberry_pi.sh b/third_party/toolchains/cpus/arm/build_raspberry_pi.sh new file mode 100755 index 0000000000..c9fe0bc771 --- /dev/null +++ b/third_party/toolchains/cpus/arm/build_raspberry_pi.sh @@ -0,0 +1,72 @@ +#!/usr/bin/env bash +# Copyright 2017 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. +# ============================================================================== +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 +# +# 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: +# +# 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 +# +# Make sure you have an up to date version of the Bazel build tool installed too. + +yes '' | ./configure + +if [[ $1 == "PI_ONE" ]]; then + PI_COPTS="--copt=-march=armv6 --copt=-mfpu=vfp" + echo "Building for the Pi One/Zero, with no NEON support" +else + PI_COPTS='--copt=-march=armv7-a --copt=-mfpu=neon-vfpv4 + --copt=-U__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 + --copt=-U__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 + --copt=-U__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8' + echo "Building for the Pi Two/Three, with NEON acceleration" +fi + +bazel build -c opt ${PI_COPTS} \ + --copt=-funsafe-math-optimizations --copt=-ftree-vectorize \ + --copt=-fomit-frame-pointer --cpu=armeabi \ + --crosstool_top=@local_config_arm_compiler//:toolchain \ + --verbose_failures \ + //tensorflow/tools/benchmark:benchmark_model \ + //tensorflow/tools/pip_package:build_pip_package + +TMPDIR=$(mktemp -d -t tmp.XXXXXXXXXX) +echo "Final outputs will go to ${TMPDIR}" + +# Build a universal wheel. +BDIST_OPTS="--universal" \ + bazel-bin/tensorflow/tools/pip_package/build_pip_package "${TMPDIR}" + +OLD_FN=$(ls "${TMPDIR}" | 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}" + +echo "Output can be found here:" +find "${TMPDIR}" |