FROM ubuntu:20.04

# CMake PPA to get modern CMake
RUN apt-get update && \
    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
        ca-certificates \
        apt-transport-https \
        gnupg \
        software-properties-common \
        wget && \
    wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | gpg --dearmor | tee /etc/apt/trusted.gpg.d/kitware.gpg >/dev/null && \
    apt-add-repository 'deb https://apt.kitware.com/ubuntu/ focal main' && \
    apt-get clean

RUN apt-get update && \
    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
        gcc \
        g++ \
        git \
        make \
        ninja-build \
        cmake \
        ccache \
        python3 \
        gcc-multilib \
        autoconf \
        automake \
        autotools-dev \
        curl \
        libmpc-dev \
        libmpfr-dev \
        libgmp-dev \
        libglfw3-dev \
        gawk \
        build-essential \
        bison \
        flex \
        texinfo \
        gperf \
        libtool \
        patchutils \
        bc \
        zlib1g-dev \
        libexpat-dev \
        pkg-config \
        libglib2.0-dev && \
    apt-get clean

# GNU toolchain
https://github.com/sifive/qemu.git && cd - && \
RUN mkdir /riscv && cd /riscv && \
    git clone https://github.com/riscv/riscv-gnu-toolchain.git && \
    cd riscv-gnu-toolchain && \
    git config --global http.sslVerify false && \
    git checkout rvv-intrinsic && \
    git submodule update --init --recursive && \
    cd riscv-binutils && \
    git checkout riscv-binutils-2.38

RUN mkdir /opt/RISCV && cd /riscv/riscv-gnu-toolchain && ./configure --prefix=/opt/RISCV && \
    make linux -j16 && \
    make build-qemu -j16 && \
    cd ..


# LLVM toolchain
RUN cd /riscv  && \
    git clone https://github.com/llvm/llvm-project.git && \
    mkdir llvm-project/build && cd llvm-project/build && \
    git checkout llvmorg-14.0.0-rc1 && \
    cmake -DLLVM_PARALLEL_LINK_JOBS=2 -DLLVM_TARGETS_TO_BUILD="X86;RISCV" -DLLVM_ENABLE_PROJECTS="clang" -DCMAKE_BUILD_TYPE=RELEASE ../llvm && \
    make -j16 && \
    ln -s /riscv/llvm-project/build /opt/rvv-llvm && \
    cd ..

USER root

CMD bash