I'm looking for a pre-packaged arm-linux-gnueabihf-gcc toolchain for OSX. Can someone point me to one?
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If you couldn't find this on the Internet, and given that most guides you'll find will be Linux-based, I'd highly recommend doing this on Linux. If you're confident using the command line, you can use Docker, otherwise you can spin up a VM or install Linux natively. I'm not saying it can't be done on OSX, but if you're just starting out it's best to follow the existing guides and practices.– tttapaMay 25, 2021 at 21:08
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2 Answers
Check out this guide from Jeff Geerling. He does a lot of work on the Raspberry Pi and has setup kernel cross compiling on his macbook.
https://github.com/geerlingguy/raspberry-pi-pcie-devices/tree/master/extras/cross-compile
There is an ARM toolchain for macOS (scroll the page until you see macOS):
Also available as a homebrew formula:
brew install arm-linux-gnueabihf-binutils
Another alternative for building on macOS is Docker with the experimental buildx extension with something similar to:
# create a builder instance
docker buildx create --name my-pi-crosscompiler --platform linux/arm/v7 --bootstrap --use
# build from a Dockerfile in the current folder
docker buildx build --platform linux/arm/v7 --progress tty -t picompiler --load .
A minimal Dockerfile:
FROM ubuntu:18.04 AS cross-compiler
RUN apt-get update && \
apt-get -y install --no-install-recommends g++ cmake libconfig++-dev zlib1g && \
rm -rf /var/lib/apt/lists/*
WORKDIR /root
CMD ["/bin/bash"]
❗️ Warning: compilation will be (significantly) slower than on bare metal because of the emulation layer.
Another example on using docker buildx here.
