Source
FROM scratch AS base
ENV GCC_VERSION=13.1.0
ENV GCC_HASH=61d684f0aa5e76ac6585ad8898a2427aade8979ed5e7f85492286c4dfc13ee86
ENV GCC_FILE=gcc-$GCC_VERSION.tar.xz
ENV GCC_SITE=https://mirrors.kernel.org/gnu/gcc/gcc-${GCC_VERSION}/${GCC_FILE}
ENV GMP_VERSION=6.2.1
ENV GMP_HASH=eae9326beb4158c386e39a356818031bd28f3124cf915f8c5b1dc4c7a36b4d7c
ENV GMP_FILE=gmp-${GMP_VERSION}.tar.bz2
ENV GMP_SITE=https://gcc.gnu.org/pub/gcc/infrastructure/${GMP_FILE}
ENV MPFR_VERSION=4.1.0
ENV MPFR_HASH=feced2d430dd5a97805fa289fed3fc8ff2b094c02d05287fd6133e7f1f0ec926
ENV MPFR_FILE=mpfr-${MPFR_VERSION}.tar.bz2
ENV MPFR_SITE=https://gcc.gnu.org/pub/gcc/infrastructure/${MPFR_FILE}
ENV MPC_VERSION=1.2.1
ENV MPC_HASH=17503d2c395dfcf106b622dc142683c1199431d095367c6aacba6eec30340459
ENV MPC_FILE=mpc-${MPC_VERSION}.tar.gz
ENV MPC_SITE=https://gcc.gnu.org/pub/gcc/infrastructure/${MPC_FILE}
ENV ISL_VERSION=0.24
ENV ISL_HASH=fcf78dd9656c10eb8cf9fbd5f59a0b6b01386205fe1934b3b287a0a1898145c0
ENV ISL_FILE=isl-${ISL_VERSION}.tar.bz2
ENV ISL_SITE=https://gcc.gnu.org/pub/gcc/infrastructure/${ISL_FILE}
ENV MUSL_VERSION=1.2.4
ENV MUSL_FILE=musl-${MUSL_VERSION}.tar.gz
ENV MUSL_SITE=http://musl.libc.org/releases/${MUSL_FILE}
ENV MUSL_HASH=7a35eae33d5372a7c0da1188de798726f68825513b7ae3ebe97aaaa52114f039
ENV LINUX_VERSION=6.6
ENV LINUX_HASH=d926a06c63dd8ac7df3f86ee1ffc2ce2a3b81a2d168484e76b5b389aba8e56d0
ENV LINUX_FILE=linux-${LINUX_VERSION}.tar.xz
ENV LINUX_SITE=https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/${LINUX_FILE}
ENV BINUTILS_VERSION=2.35
ENV BINUTILS_HASH=1b11659fb49e20e18db460d44485f09442c8c56d5df165de9461eb09c8302f85
ENV BINUTILS_FILE=binutils-${BINUTILS_VERSION}.tar.xz
ENV BINUTILS_SITE=https://ftp.gnu.org/gnu/binutils/${BINUTILS_FILE}
ENV BUSYBOX_VERSION=1.35.0
ENV BUSYBOX_HASH=faeeb244c35a348a334f4a59e44626ee870fb07b6884d68c10ae8bc19f83a694
ENV BUSYBOX_FILE=busybox-${BUSYBOX_VERSION}.tar.bz2
ENV BUSYBOX_SITE=https://busybox.net/downloads/${BUSYBOX_FILE}
ENV MAKE_VERSION=4.4
ENV MAKE_HASH=581f4d4e872da74b3941c874215898a7d35802f03732bdccee1d4a7979105d18
ENV MAKE_FILE=make-${MAKE_VERSION}.tar.gz
ENV MAKE_SITE=https://ftp.gnu.org/gnu/make/${MAKE_FILE}
ENV ARCH=x86_64
ENV BUILD=i386-unknown-linux-musl
ENV TARGET=${ARCH}-linux-musl
ENV HOST=${TARGET}
ENV PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
ENV USER=user
ENV HOME=/home/${USER}
ENV TZ=UTC
ENV LANG=C.UTF-8
ENV SOURCE_DATE_EPOCH=1
ENV KCONFIG_NOTIMESTAMP=1
ENV MUSL_DIR=${HOME}/build-musl
ENV LINUX_DIR=${HOME}/build-linux
ENV BINUTILS_DIR=${HOME}/build-binutils
ENV BUSYBOX_DIR=${HOME}/build-busybox
ENV MAKE_DIR=${HOME}/build-make
ENV GCC_DIR=${HOME}/build-gcc
FROM base AS fetch
WORKDIR /${HOME}
ADD --checksum=sha256:${LINUX_HASH} ${LINUX_SITE} .
ADD --checksum=sha256:${MUSL_HASH} ${MUSL_SITE} .
ADD --checksum=sha256:${BUSYBOX_HASH} ${BUSYBOX_SITE} .
ADD --checksum=sha256:${BINUTILS_HASH} ${BINUTILS_SITE} .
ADD --checksum=sha256:${MAKE_HASH} ${MAKE_SITE} .
ADD --checksum=sha256:${GCC_HASH} ${GCC_SITE} .
ADD --checksum=sha256:${GMP_HASH} ${GMP_SITE} .
ADD --checksum=sha256:${MPFR_HASH} ${MPFR_SITE} .
ADD --checksum=sha256:${MPC_HASH} ${MPC_SITE} .
ADD --checksum=sha256:${ISL_HASH} ${ISL_SITE} .
FROM fetch AS build
COPY --from=stagex/stage2 . /
RUN --network=none <<-EOF
set -eux
tar -xf ${LINUX_FILE}
tar -kxf ${BINUTILS_FILE}
tar -kxf ${GCC_FILE}
tar -kxjf ${BUSYBOX_FILE}
tar -kxzf ${MUSL_FILE}
tar -kxzf ${MAKE_FILE}
EOF
WORKDIR /${MUSL_DIR}
RUN --network=none <<-EOF
set -eux
../musl-${MUSL_VERSION}/configure \
--prefix=/usr \
--build=${BUILD} \
--host=${TARGET}
make
EOF
WORKDIR /${BINUTILS_DIR}
RUN --network=none <<-EOF
set -eux
../binutils-${BINUTILS_VERSION}/configure \
--build=${BUILD} \
--host=${TARGET} \
--prefix=/usr \
--bindir=/usr/bin \
--mandir=/usr/share/man \
--infodir=/usr/share/info \
--sysconfdir=/etc \
--disable-nls \
--disable-multilib \
--disable-plugins \
--disable-gprofng \
--enable-64-bit-bfd \
--enable-ld=default \
--enable-install-libiberty \
--enable-deterministic-archives
make -j$(nproc)
EOF
WORKDIR /${MAKE_DIR}
RUN --network=none <<-EOF
set -eux
../make-${MAKE_VERSION}/configure \
--build=${BUILD} \
--host=${TARGET} \
--prefix=/usr \
--mandir=/usr/share/man \
--infodir=/usr/share/info \
--disable-nls
make -j$(nproc)
EOF
WORKDIR /${GCC_DIR}
RUN --network=none <<-EOF
set -eux
cp ../*.tar.* ../gcc-${GCC_VERSION}
env -C ${HOME}/gcc-${GCC_VERSION} ./contrib/download_prerequisites
../gcc-${GCC_VERSION}/configure \
--build=${BUILD} \
--host=${TARGET} \
--target=${TARGET} \
--prefix=/usr \
--mandir=/usr/share/man \
--infodir=/usr/share/info \
--libdir=/usr/lib \
--disable-cet \
--disable-fixed-point \
--disable-libstdcxx-pch \
--disable-multilib \
--disable-libsanitizer \
--disable-nls \
--disable-werror \
--enable-__cxa_atexit \
--enable-default-pie \
--enable-default-ssp \
--enable-languages=c,c++ \
--enable-link-serialization=2 \
--enable-linker-build-id
make -j$(nproc)
EOF
WORKDIR /${BUSYBOX_DIR}
RUN --network=none <<-EOF
set -eux
setConfs='
CONFIG_LAST_SUPPORTED_WCHAR=0
CONFIG_STATIC=y
'
unsetConfs='
CONFIG_FEATURE_SYNC_FANCY
CONFIG_FEATURE_HAVE_RPC
CONFIG_FEATURE_INETD_RPC
CONFIG_FEATURE_UTMP
CONFIG_FEATURE_WTMP
'
make \
-f ../busybox-${BUSYBOX_VERSION}/Makefile \
KBUILD_SRC=../busybox-${BUSYBOX_VERSION} \
CROSS_COMPILE=${TARGET}- \
defconfig
for conf in $unsetConfs; do
sed -i \
-e "s!^$conf=.*\$!# $conf is not set!" \
.config
done
for confV in $setConfs; do
conf="${confV%=*}"
sed -i \
-e "s!^$conf=.*\$!$confV!" \
-e "s!^# $conf is not set\$!$confV!" \
.config
if ! grep -q "^$confV\$" .config; then
echo "$confV" >> .config
fi
done
make oldconfig CROSS_COMPILE=${TARGET}-
for conf in $unsetConfs; do
! grep -q "^$conf=" .config
done
for confV in $setConfs; do
grep -q "^$confV\$" .config
done
make CROSS_COMPILE=${TARGET}-
EOF
WORKDIR /${HOME}/linux-${LINUX_VERSION}
RUN --network=none <<-EOF
set -eux
make ARCH=${ARCH} headers
find usr/include -name '.*' -delete
rm usr/include/Makefile
rm usr/include/headers_check.pl
cp -rv usr/include ${LINUX_DIR}
EOF
FROM build AS install
RUN --network=none <<-EOF
set -eux
env -C ${BUSYBOX_DIR} make \
CROSS_COMPILE=${TARGET}- \
CONFIG_PREFIX=/rootfs \
install
env -C ${MUSL_DIR} make DESTDIR=/rootfs install
env -C ${BINUTILS_DIR} make DESTDIR=/rootfs install
env -C ${MAKE_DIR} make DESTDIR=/rootfs install
env -C ${GCC_DIR} make DESTDIR=/rootfs install
cp -Rv ${LINUX_DIR}/* /rootfs/usr/include/
cd /rootfs/
ln -sT /lib lib64
mkdir -p etc tmp var/tmp home/user
echo "user:x:1000:" > etc/group
echo "user:x:1000:1000::/home/user:/bin/sh" > etc/passwd
chown -R 1000:1000 tmp var/tmp home/user
EOF
FROM base AS package
COPY --from=install /rootfs/ .
USER 1000:1000
ENTRYPOINT ["/bin/sh"]
ENV PS1="stage3 $ "