Dockerfile.llvm_arm

FROM balenalib/armv7hf-debian:stretch-build

RUN [ "cross-build-start" ]

ENV DEBIAN_FRONTEND=noninteractive

WORKDIR /work

RUN \
     echo '>>> Setting up ARM build environment...' \
  && apt-get update \
  && apt-get install -y wget bzip2 build-essential python3 \
  && apt-get install -y build-essential tk-dev libncurses5-dev libncursesw5-dev \
                        libreadline6-dev libdb5.3-dev libgdbm-dev libsqlite3-dev \
                        libssl-dev libbz2-dev libexpat1-dev liblzma-dev zlib1g-dev \
                        libffi-dev cmake ccache binutils-dev ninja-build \
                        gperf gawk flex bison ncurses-dev m4 patchelf \
                        texinfo help2man libpthread-stubs0-dev libtinfo-dev \
                        libatlas-base-dev libsqlite3-dev tk-dev libgdbm-dev \
                        libc6-dev

ENV LLVM_BRANCH=release_70
ENV LLVM_URL=https://github.com/llvm-mirror/llvm.git
ENV CLANG_URL=https://github.com/llvm-mirror/clang.git

RUN \
     echo '>>> Building LLVM 7.0...' \
  && git clone --depth=1 --single-branch -b ${LLVM_BRANCH} ${LLVM_URL} /tmp/llvm \
  && git clone --depth=1 --single-branch -b ${LLVM_BRANCH} ${CLANG_URL} /tmp/llvm/tools/clang \
  && mkdir -p /tmp/llvm/build \
  && cd /tmp/llvm/build \
  && cmake -G Ninja /tmp/llvm \
      -DCMAKE_INSTALL_PREFIX=/usr/local \
      -DLLVM_TARGETS_TO_BUILD=ARM \
      -DCMAKE_BUILD_TYPE=Release \
      -DLLVM_BINUTILS_INCDIR=/usr/include \
      -DLLVM_INCLUDE_TESTS=OFF \
      -DLLVM_ENABLE_TERMINFO=0 \
      -DCMAKE_C_COMPILER=/usr/bin/cc \
      -DCMAKE_CXX_COMPILER=/usr/bin/c++ \
      -DCMAKE_ASM_COMPILER=/usr/bin/as \
      -DCMAKE_CXX_FLAGS="-I/root/llvm/build/tools/clang/include -I/root/llvm/tools/clang/include -DENDIAN_LITTLE=1" \
  && ninja -v \
  && ninja install

RUN \
     echo '>>> Cleaning up...' \
  && rm -rf /tmp/llvm

RUN [ "cross-build-end" ]