FROM ubuntu:16.04

RUN apt-get update -qq && apt-get install -qqy \
    git wget bzip2 file unzip libtool pkg-config cmake build-essential \
    automake yasm gettext autopoint vim python git-svn ninja-build \
    subversion && \
    apt-get clean -y && \
    rm -rf /var/lib/apt/lists/*


RUN git config --global user.name "LLVM MinGW" && \
    git config --global user.email root@localhost

WORKDIR /build

ARG CORES=4

ENV TOOLCHAIN_PREFIX=/opt/llvm-mingw

# Build LLVM
COPY build-llvm.sh .
RUN ./build-llvm.sh $TOOLCHAIN_PREFIX

# Strip the LLVM install output immediately. (This doesn't reduce the
# total docker image size as long as it is in a separate RUN layer though,
# but reduces build times if tweaking the contents of strip-llvm.sh.)
# Most of the size of the docker image comes from the build directory that
# we keep in any case.
COPY strip-llvm.sh .
RUN ./strip-llvm.sh $TOOLCHAIN_PREFIX

ENV TOOLCHAIN_ARCHS="i686 x86_64 armv7 aarch64"

# Install the usual $TUPLE-clang binaries
COPY wrappers/*.sh ./wrappers/
COPY wrappers/*.c ./wrappers/
COPY install-wrappers.sh .
RUN ./install-wrappers.sh $TOOLCHAIN_PREFIX

# Build MinGW-w64
COPY build-mingw-w64.sh .
RUN ./build-mingw-w64.sh $TOOLCHAIN_PREFIX

# Build compiler-rt
COPY build-compiler-rt.sh .
RUN ./build-compiler-rt.sh $TOOLCHAIN_PREFIX

# Build mingw-w64's extra libraries
COPY build-mingw-w64-libraries.sh .
RUN ./build-mingw-w64-libraries.sh $TOOLCHAIN_PREFIX

# Build C test applications
ENV PATH=$TOOLCHAIN_PREFIX/bin:$PATH

COPY test/*.c ./test/
RUN cd test && \
    for arch in $TOOLCHAIN_ARCHS; do \
        mkdir -p $arch && \
        for test in hello hello-tls crt-test setjmp; do \
            $arch-w64-mingw32-clang $test.c -o $arch/$test.exe || exit 1; \
        done; \
    done

# Build libunwind/libcxxabi/libcxx
COPY build-libcxx.sh merge-archives.sh ./
RUN ./build-libcxx.sh $TOOLCHAIN_PREFIX

# Build C++ test applications
COPY test/*.cpp ./test/
RUN cd test && \
    for arch in $TOOLCHAIN_ARCHS; do \
        mkdir -p $arch && \
        for test in hello-cpp hello-exception tlstest-main; do \
            $arch-w64-mingw32-clang++ $test.cpp -o $arch/$test.exe || exit 1; \
        done; \
        $arch-w64-mingw32-clang++ tlstest-lib.cpp -shared -o $arch/tlstest-lib.dll || exit 1; \
    done

# Build libssp
COPY build-libssp.sh libssp-Makefile ./
RUN ./build-libssp.sh $TOOLCHAIN_PREFIX

RUN cd test && \
    for arch in $TOOLCHAIN_ARCHS; do \
        mkdir -p $arch && \
        for test in ssp; do \
            $arch-w64-mingw32-clang $test.c -o $arch/$test.exe -fstack-protector-strong || exit 1; \
        done; \
    done

# Cheating: Pull strip and objcopy from the normal binutils package.
RUN apt-get update -qq && \
    apt-get install -qqy binutils-mingw-w64-x86-64 && \
    cp /usr/bin/x86_64-w64-mingw32-strip $TOOLCHAIN_PREFIX/bin/binutils-strip && \
    cp /usr/bin/x86_64-w64-mingw32-objcopy $TOOLCHAIN_PREFIX/bin/binutils-objcopy && \
    apt-get remove -qqy binutils-mingw-w64-x86-64 && \
    apt-get clean -y && \
    rm -rf /var/lib/apt/lists/*