FROM gitea.okami101.io/okami101/stagex/core-binutils:latest AS core-binutils
FROM gitea.okami101.io/okami101/stagex/core-gcc:latest AS core-gcc
FROM gitea.okami101.io/okami101/stagex/core-make:latest AS core-make
FROM gitea.okami101.io/okami101/stagex/core-musl:latest AS core-musl
FROM gitea.okami101.io/okami101/stagex/core-busybox:latest AS core-busybox
FROM gitea.okami101.io/okami101/stagex/core-diffutils:latest AS core-diffutils
FROM gitea.okami101.io/okami101/stagex/core-go:latest AS core-go

FROM scratch AS bootstrap-c-toolchain
ENV CFLAGS="-g0 -Os"
ENV CXXFLAGS="-g0 -Os"
ENV LDFLAGS="-s"
COPY --from=core-binutils / /
COPY --from=core-gcc / /
COPY --from=core-make / /
COPY --from=core-musl / /
COPY --from=core-busybox / /

FROM bootstrap-c-toolchain AS build-make
ARG VERSION=4.4.1

WORKDIR /source

ADD https://ftp.gnu.org/gnu/make/make-${VERSION}.tar.gz make.tar.gz

RUN tar -xzf make.tar.gz --strip-components=1 && \
    mkdir build && \
    cd build && \
    ../configure --prefix=/usr --without-guile

RUN cd build && \
    make -j$(nproc)

RUN cd build && \
    make DESTDIR=/rootfs install

FROM bootstrap-c-toolchain AS build-binutils
ARG VERSION=2.44

WORKDIR /source

ADD https://ftp.gnu.org/gnu/binutils/binutils-${VERSION}.tar.xz binutils.tar.xz

RUN tar -xJf binutils.tar.xz --strip-components=1 && \
    ./configure \
    --build=${BUILD} \
    --host=${HOST} \
    --prefix=/usr \
    --disable-nls \
    --disable-gdb \
    --disable-gprofng \
    --disable-werror \
    --enable-deterministic-archives \
    --enable-targets=aarch64-linux-musl,aarch64_be-linux-musl,i686-linux-musl,x86_64-linux-musl,x86_64-linux-muslx32,x86_64-pep

RUN make -j $(nproc)

RUN make DESTDIR=/rootfs install && \
    rm -r /rootfs/usr/share/man

FROM bootstrap-c-toolchain AS build-gcc
ARG GCC_VERSION=14.2.0
ARG MPFR_VERSION=4.2.2
ARG GMP_VERSION=6.2.1
ARG MPC_VERSION=1.3.1

WORKDIR /source

ADD https://ftp.gnu.org/gnu/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz gcc.tar.xz
ADD https://ftp.gnu.org/gnu/mpfr/mpfr-${MPFR_VERSION}.tar.xz mpfr.tar.xz
ADD https://ftp.gnu.org/gnu/gmp/gmp-${GMP_VERSION}.tar.xz gmp.tar.xz
ADD https://ftp.gnu.org/gnu/mpc/mpc-${MPC_VERSION}.tar.gz mpc.tar.gz

RUN mkdir mpfr && \
    tar -xJf mpfr.tar.xz --strip-components=1 -C mpfr && \
    mkdir gmp && \
    tar -xJf gmp.tar.xz --strip-components=1 -C gmp && \
    mkdir mpc && \
    tar -xzf mpc.tar.gz --strip-components=1 -C mpc && \
    tar -xJf gcc.tar.xz --strip-components=1 && \
    mkdir build && \
    cd build && \
    cat ../gcc/limitx.h ../gcc/glimits.h ../gcc/limity.h > `dirname $(gcc -print-libgcc-file-name)`/include-fixed/limits.h && \
    ../configure \
    --build=${BUILD} \
    --host=${HOST} \
    --prefix=/usr \
    --libdir=/usr/lib \
    --disable-multilib \
    --disable-nls \
    --enable-shared \
    --enable-plugin \
    --enable-languages=c,c++ \
    --enable-__cxa_atexit \
    --enable-c99 \
    --enable-long-long \
    --enable-threads=posix \
    --enable-clocale=generic \
    --enable-libstdcxx-time \
    --enable-checking=release \
    --enable-fully-dynamic-string \
    --enable-default-pie \
    --disable-symvers \
    --disable-gnu-indirect-function \
    --disable-libmudflap \
    --disable-libsanitizer \
    --disable-libmpx \
    --disable-lto-plugin \
    --disable-libssp \
    --disable-bootstrap

RUN cd build && \
    make -j $(nproc)

RUN cd build && \
    make DESTDIR=/rootfs install-strip && \
    ln -sv gcc /rootfs/usr/bin/cc && \
    mv /rootfs/usr/lib64/* /rootfs/usr/lib/ && \
    rm -rf /rootfs/usr/lib64

FROM bootstrap-c-toolchain AS build-linux-headers
ARG VERSION=6.12.21

WORKDIR /source

ADD https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-${VERSION}.tar.xz linux.tar.xz

RUN tar -xJf linux.tar.xz --strip-components=1

RUN make -j $(nproc) headers ARCH=x86_64 && \
    find usr/include -name '.*' -delete && \
    rm usr/include/Makefile

RUN mkdir -p /rootfs/usr/include && \
    cp -rv usr/include/* /rootfs/usr/include

FROM bootstrap-c-toolchain AS build-musl
COPY --from=core-diffutils / /

ENV CFLAGS=""
ENV CXXFLAGS=""
ENV LDFLAGS=""

ARG VERSION=1.2.5

WORKDIR /source

ADD https://www.musl-libc.org/releases/musl-${VERSION}.tar.gz musl.tar.gz

RUN tar -xzf musl.tar.gz --strip-components=1 && \
    mkdir build && \
    cd build && \
    ../configure --prefix=/usr

RUN cd build && \
    make -j $(nproc)

RUN cd build && \
    make DESTDIR=/rootfs install && \
    ARCH=$(uname -m) && \
    mkdir -p /rootfs/usr/bin /rootfs/usr/lib && \
    rm -rf /rootfs/lib && \
    ln -sf /usr/lib/ld-musl-${ARCH}.so.1 /rootfs/usr/bin/ldd && \
    mv -f /rootfs/usr/lib/libc.so /rootfs/usr/lib/ld-musl-${ARCH}.so.1 && \
    ln -sf ld-musl-${ARCH}.so.1 /rootfs/usr/lib/libc.musl-${ARCH}.so.1 && \
    ln -sf /usr/lib/ld-musl-${ARCH}.so.1 /rootfs/usr/lib/libc.so

FROM core-busybox AS build-go
COPY --from=core-go / /
ARG VERSION=1.24.2
ENV GOROOT_FINAL=/rootfs/go
USER root

WORKDIR /source

ADD https://dl.google.com/go/go${VERSION}.src.tar.gz go.src.tar.gz

RUN tar -xzf go.src.tar.gz --strip-components=1 && \
    rm go.src.tar.gz

RUN cd src && sh make.bash

RUN rm -rf pkg/obj && \
    rm -rf pkg/bootstrap && \
    rm -f pkg/tool/*/api && \
    find src \( -type f -a -name "*_test.go" \) -exec rm -rf \{\} \+ && \
    find src \( -type d -a -name "testdata" \) -exec rm -rf \{\} \+ && \
    find src -type f -a \( -name "*.bash" -o -name "*.rc" -o -name "*.bat" \) -exec rm -rf \{\} \+ && \
    mkdir -p "${GOROOT_FINAL}" && \
    mv * "${GOROOT_FINAL}" && \
    mkdir -p /rootfs/usr/bin && \
    ln -s /go/bin/go /rootfs/usr/bin/go && \
    ln -s /go/bin/gofmt /rootfs/usr/bin/gofmt

FROM scratch AS final
COPY --from=core-busybox / /
COPY --from=build-binutils /rootfs/ /
COPY --from=build-gcc /rootfs/ /
COPY --from=build-linux-headers /rootfs/ /
COPY --from=build-musl /rootfs/ /
COPY --from=build-make /rootfs/ /
COPY --from=build-go /rootfs/ /

RUN mkdir -p /usr/bin /usr/lib && \
    [ -L /bin ] && [ -d /bin ] && \
    [ -L /lib ] && [ -d /lib ] && \
    [ -L /lib64 ] && [ -d /lib64 ] && \
    [ -L /usr/lib64 ] && [ -d /usr/lib64 ] && \
    [ ! -e /sbin ] || [ -z "$(ls -A /sbin 2>/dev/null)" ] && \
    [ ! -e /usr/sbin ] || [ -z "$(ls -A /usr/sbin 2>/dev/null)" ] && \
    rm -rf /sbin && \
    rm -rf /usr/sbin && \
    ln -sT usr/bin /sbin && \
    ln -sT bin /usr/sbin

FROM scratch AS toolchain-musl
COPY --from=build-musl /rootfs /

FROM scratch AS toolchain
COPY --from=final / /