CrossBuild - Docker images for cross-compilation

Docker Hub

• based on crosstool-NG (git master release)
• go compiler
• cmake
• ninja
• pkg-config
• build as user if the UID & GID environment variables are passed to docker

Examples

docker run --rm \
    -v "${SRCDIR}":/work \
    desertbit/crossbuild:linux-armv7 \
    make all

docker run --rm \
    -v "${SRCDIR}":/work \
    desertbit/crossbuild:linux-armv7 \
    sh -c '$CC test.c -o test'

If we are running docker natively, we want to create a user in the container with the same UID and GID as the user on the host machine, so that any files created are owned by that user. Without this they are all owned by root.

docker run --rm \
    -e UID="$(id -u)" \
    -e GID="$(id -g)" \
    -v "${SRCDIR}":/work \
    desertbit/crossbuild:linux-armv7 \
    sh -c '$CC test.c -o test'

Custom Libs

Install custom libs, sources and files to ${CROSS_SYSROOT}.

Credits

• crosstool-NG
• dockcross