add some doc for docker android compilation

This commit is contained in:
Benjamin Henrion 2016-03-18 13:54:20 +01:00
parent 340eb52165
commit 516efa46c0

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builds/android/README.md Normal file
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LIBZMQ ANDROID COMPILATION STEPS
================================
To launch the docker build:
$ docker build .
To launch the android build, you have to first install the android-ndk first in your HOME directory:
$ cd ~
$ export ANDROID_NDK_VERSION="r10e"
$ wget -q http://dl.google.com/android/ndk/android-ndk-${ANDROID_NDK_VERSION}-linux-x86_64.bin -O android-ndk-${ANDROID_NDK_VERSION}-linux-x86_64.bin
$ chmod +x android-ndk-${ANDROID_NDK_VERSION}-linux-x86_64.bin
$ ./android-ndk-r10e-linux-x86_64.bin
$ export ANDROID_NDK_ROOT /home/zmq/android-ndk-r10e
$ export TOOLCHAIN_NAME arm-linux-androideabi-4.9
$ export TOOLCHAIN_HOST arm-linux-androideabi
$ export TOOLCHAIN_PATH ${ANDROID_NDK_ROOT}/toolchains/${TOOLCHAIN_NAME}/prebuilt/linux-x86_64/bin
$ export TOOLCHAIN_ARCH arm
Then you can launch the build:
$ cd ~/libzmq/builds/android
$ ./build.sh
Cloning into 'libsodium'...
remote: Counting objects: 15246, done.
remote: Compressing objects: 100% (182/182), done.
Receiving objects: 16% (2440/15246)
[...]
A successful build should finish with the following message and give you back your shell prompt:
[...]
make[2]: Leaving directory '/tmp/android_build/arm-linux-androideabi-4.9/libzmq'
make[1]: Leaving directory '/tmp/android_build/arm-linux-androideabi-4.9/libzmq'
libzmq android build succeeded
$
You will then be able to see libzmq.so compiled in the prefix/ directory:
$ cd ~/libzmq/builds/android/prefix/arm-linux-androideabi-4.9/lib
$ ls
libsodium.a libsodium.la libsodium.so libzmq.a libzmq.la libzmq.so pkgconfig
You can then triple check that they are ARM libs:
$ cd ~/libzmq/builds/android/prefix/arm-linux-androideabi-4.9/lib
$ file libzmq.so
libzmq.so: ELF 32-bit LSB shared object, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /system/bin/linker, not stripped
COMPILE WITH DOCKERFILE
=======================
To launch the docker build with a tagged image as a result:
$ cd ~/libzmq/builds/android
$ docker build -t libzmq-android:`date +"%y%m%d-%H%M%S"` .
$ docker build -t libzmq-android:latest .
If it is successful, it will end by "libzmq android build succeeded" followed by the ContainerID "e53db616aff4":
[...]
make[2]: Leaving directory `/tmp/android_build/arm-linux-androideabi-4.9/libzmq'
make[1]: Leaving directory `/tmp/android_build/arm-linux-androideabi-4.9/libzmq'
libzmq android build succeeded
---> e53db616aff4
Removing intermediate container 8a5f3e34f3da
Successfully built e53db616aff4
$
$ docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
libzmq-android 151218-101411 e53db616aff4 18 hours ago 5.495 GB
If you want to collect the artifacts on the build, you can specify a directory in your HOME directory, such as "$HOME/libzmq-android-bins" for example:
$ mkdir -pv $HOME/libzmq-android-bins
$ docker run -v $HOME/libzmq-android-bins:/data libzmq-android:latest "cp -v /home/zmq/libzmq/builds/android/prefix/arm-linux-androideabi-4.9/lib/* /data"