TensorFlow编Android so库总结

TensorFlow编Android so库总结

一、下载安装tensorflow

参考（http://blog.youkuaiyun.com/u013832707/article/details/73161071）

1. 获取源码
   git clone –recurse-submodules https://github.com/tensorflow/tensorflow
   其中–recurse-submodules 参数是必须的, 用于获取 TesorFlow 依赖的 protobuf 库.
2. 安装bazel
   安装bazel依赖
   sudo apt-get install pkg-config zip g++ zlib1g-dev unzip
   安装openjdk
   sudo add-apt-repository ppa:openjdk-r/ppa
   sudo apt-get update
   sudo apt-get install openjdk-8-jdk
   配置openjdk 8为默认java环境：
   sudo update-alternatives –config java
   sudo update-alternatives –config javac
   安装bazel
   Add Bazel distribution URI as a package source (one time setup)
   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 -
   If you want to install the testing version of Bazel, replace stable with testing.
   Install and update Bazel
   sudo apt-get update && sudo apt-get install bazel
   Once installed, you can upgrade to a newer version of Bazel with:
   sudo apt-get upgrade bazel
   （参考https://docs.bazel.build/versions/master/install-ubuntu.html）
   安装其他依赖
   sudo apt-get install python-numpy swig python-dev
   sudo apt-get install python-numpy python-dev python-pip python-wheel
   其中通过apt-get install 安装的pip太老了，需要升级
   sudo pip install –upgrade pip
   生机protobuf
   sudo pip install –upgrade protobuf
3. 配置安装Tensorflow
   从源码树的根路径执行: ./configure
   到配置Android Workspace时，配置SDK路径和NDK路径（目前NDK支持1.4b，太高的话编译时会报fft2d错误）。

二、编译命令

编译so库
bazel build -c opt //tensorflow/contrib/android:libtensorflow_inference.so –crosstool_top=//external:android/crosstool –host_crosstool_top=@bazel_tools//tools/cpp:toolchain –cpu=armeabi-v7a
编译完毕后，libtensorflow_inference.so的路径为：
/tensorflow/bazel-bin/tensorflow/contrib/android
编译jar包
bazel build //tensorflow/contrib/android:android_tensorflow_inference_java
编译完毕后，android_tensorflow_inference_java.jar的路径为：
/tensorflow/bazel-bin/tensorflow/contrib/android

三、自定义so文件

修改目录为（/tensorflow/contrib/android）
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