How can I compile busysbox.tar.xz

[docker-library]

How can I compile busysbox.tar.xz

[yosifkit]

For all our arches we just use the build script:

busybox/build.sh

Line 18 in 59a7bff

docker run --rm "$base$version-builder" tar cC rootfs . | xz -z9 > "$version/busybox.tar.xz"

Which takes advantage of the work done in the Dockerfile.builder to setup the contents for the tar:

busybox/glibc/Dockerfile.builder

Lines 78 to 142 in 59a7bff

	RUN set -ex \
	&& make -j "$(nproc)" \
	busybox \
	&& ./busybox --help \
	&& mkdir -p rootfs/bin \
	&& ln -vL busybox rootfs/bin/ \
	\
	&& ln -vL "$(which getconf)" rootfs/bin/getconf \
	\
	# hack hack hack hack hack
	# with glibc, static busybox uses libnss for DNS resolution :(
	&& mkdir -p rootfs/etc \
	&& cp /etc/nsswitch.conf rootfs/etc/ \
	&& mkdir -p rootfs/lib \
	&& ln -sT lib rootfs/lib64 \
	&& set -- \
	rootfs/bin/busybox \
	rootfs/bin/getconf \
	/lib/"$(gcc -print-multiarch)"/libnss*.so.* \
	# libpthread is part of glibc: http://stackoverflow.com/a/11210463/433558
	/lib/"$(gcc -print-multiarch)"/libpthread*.so.* \
	&& while [ "$#" -gt 0 ]; do \
	f="$1"; shift; \
	fn="$(basename "$f")"; \
	if [ -e "rootfs/lib/$fn" ]; then continue; fi; \
	if [ "${f#rootfs/}" = "$f" ]; then \
	if [ "${fn#ld-}" = "$fn" ]; then \
	ln -vL "$f" "rootfs/lib/$fn"; \
	else \
	cp -v "$f" "rootfs/lib/$fn"; \
	fi; \
	fi; \
	set -- "$@" $(ldd "$f" | awk ' \
	$1 ~ /^\// { print $1; next } \
	$2 == "=>" && $3 ~ /^\// { print $3; next } \
	'); \
	done \
	\
	&& chroot rootfs /bin/getconf _NPROCESSORS_ONLN \
	\
	&& chroot rootfs /bin/busybox --install /bin
	RUN set -ex; \
	buildrootVersion='2017.02.2'; \
	mkdir -p rootfs/etc; \
	for f in passwd shadow group; do \
	curl -fL -o "rootfs/etc/$f" "https://git.busybox.net/buildroot/plain/system/skeleton/etc/$f?id=$buildrootVersion"; \
	done
	# create /tmp
	RUN mkdir -p rootfs/tmp \
	&& chmod 1777 rootfs/tmp
	# create missing home directories
	RUN set -ex \
	&& cd rootfs \
	&& for userHome in $(awk -F ':' '{ print $3 ":" $4 "=" $6 }' etc/passwd); do \
	user="${userHome%%=*}"; \
	home="${userHome#*=}"; \
	home="./${home#/}"; \
	if [ ! -d "$home" ]; then \
	mkdir -p "$home"; \
	chown "$user" "$home"; \
	fi; \
	done

[jcxian]

I found "FROM debian:stretch-slim" from Dockerfile.builder. there's no debian:stretch-slim for mips64le architecture. how can i do for it?

[tianon]

Just to thread the needle, see debuerreotype/docker-debian-artifacts#23 (issue filed with the same question following this one).