Cross Compile Julia For RaspberryPi3 using Docker

Make.user

JULIA_CPU_TARGET=cortex-a7
MARCH=armv7-a 
prefix=/home/pi/work/julia-1.1.0

prepare.sh

apt-get update
apt-get install build-essential libatomic1 python gfortran perl wget m4 cmake pkg-config git
git clone --depth=1 -b v1.1.0 https://github.com/JuliaLang/julia.git
cp Make.user julia/Make.user

1. Choose base image from https://www.balena.io/docs/reference/base-images/base-images-ref/ or https://hub.docker.com/r/balenalib/armv7hf-debian. I tested the latter case.
2. Make work space. for example replace /path/to/work with ~/work

# on your build machine
$ mkdir -p /path/to/work
$ cd /path/to/work

3. And then run container

# Download Make.user and prepare.sh so that result of cmd ls contains Make.user and prepare.sh
$ ls 
Make.user prepare.sh
$ sudo docker run --rm -it -v $PWD:/home/pi/work -w /home/pi/work balenalib/raspberrypi3:stretch bash
docker # bash prepare.sh
docker # cd julia
docker # make -j 8 && make install
exit

copy 'julia-1.1.0` on your raspberry pi 3

References

julia/README.arm.md

Balena base images

Which image should i use ?

Both
Dockerfile of base-images/balena-base-images/armv7hf/debian/stretch

and

Dockerfile of base-images/balena-base-images/device-base/raspberrypi3/debian/stretch

came from same base image of arm32v7/debian:stretch-slim . This means we can use both.

Appendix

For raspberrypi zero user

$ sudo docker run --rm -it -v $PWD:/home/pi/work -w /home/pi/work balenalib/raspberry-pi:stretch bash

Make.user

JULIA_CPU_TARGET=arm1176jzf-s
make OPENBLAS_USE_THREAD=0
prefix=/home/pi/work/julia-1.1.0

Binary

here is my google drive link that provides julia binary (NOT OFFICIAL) for Raspberry Pi series

License

This instruction how to build julia is licensed under the terms of MIT License.