Add release docker for Ubuntu 18.04 (aarch64)

docker/v1.21.0/ubuntu18.04/Dockerfile

@@ -0,0 +1,79 @@
+#
+#  Copyright (c) 2017-2023, Intel Corporation
+#
+#  SPDX-License-Identifier: BSD-3-Clause
+
+
+FROM ubuntu:18.04 AS llvm_build_step1
+LABEL maintainer="Dmitry Babokin <[email protected]>"
+SHELL ["/bin/bash", "-c"]
+
+ARG REPO=ispc/ispc
+ARG SHA=v1.21.0
+ARG LLVM_VERSION=15.0
+
+# !!! Make sure that your docker config provides enough memory to the container,
+# otherwise LLVM build may fail, as it will use all the cores available to container.
+
+RUN uname -a
+
+# Packages required to build ISPC and Clang.
+RUN apt-get -y update && apt-get --no-install-recommends install -y wget build-essential gcc g++ git python3-dev ncurses-dev libtinfo-dev ca-certificates libtbb-dev && \
+    rm -rf /var/lib/apt/lists/*
+
+# ISPC and LLVM starting 16.0 build in C++17 mode and will fail without modern libstdc++
+RUN apt-get -y update && apt-get --no-install-recommends install -y software-properties-common && \
+    add-apt-repository ppa:ubuntu-toolchain-r/test -y && apt-get -y update && \
+    apt-get --no-install-recommends install -y libstdc++-9-dev && \
+    rm -rf /var/lib/apt/lists/*
+
+# Download and install required version of CMake. CMake 3.20 is required starting from LLVM 16.0.
+RUN if [[ $(uname -m) =~ "x86" ]]; then export CMAKE_URL="https://github.com/Kitware/CMake/releases/download/v3.20.5/cmake-3.20.5-linux-x86_64.sh"; else export CMAKE_URL="https://github.com/Kitware/CMake/releases/download/v3.20.5/cmake-3.20.5-linux-aarch64.sh"; fi && \
+    wget -q --retry-connrefused --waitretry=5 --read-timeout=20 --timeout=15 -t 5 $CMAKE_URL && mkdir /opt/cmake && sh cmake-*.sh --prefix=/opt/cmake --skip-license && \
+    ln -s /opt/cmake/bin/cmake /usr/local/bin/cmake && rm -rf cmake-*.sh
+
+# If you are behind a proxy, you need to configure git.
+RUN if [ -v "$http_proxy" ]; then git config --global --add http.proxy "$http_proxy"; fi
+
+WORKDIR /usr/local/src
+
+# Fork ispc on github and clone *your* fork.
+RUN git clone https://github.com/$REPO.git ispc
+
+# This is home for Clang builds
+RUN mkdir /usr/local/src/llvm
+
+ENV ISPC_HOME=/usr/local/src/ispc
+ENV LLVM_HOME=/usr/local/src/llvm
+
+# If you are going to run test for future platforms, go to
+# http://www.intel.com/software/sde and download the latest version,
+# extract it, add to path and set SDE_HOME.
+
+WORKDIR /usr/local/src/ispc
+RUN git checkout $SHA
+
+# Build Clang with all required patches.
+# Pass required LLVM_VERSION with --build-arg LLVM_VERSION=<version>.
+# Note self-build options, it's required to build clang and ispc with the same compiler,
+# i.e. if clang was built by gcc, you may need to use gcc to build ispc (i.e. run "make gcc"),
+# or better do clang selfbuild and use it for ispc build as well (i.e. just "make").
+# "rm" are just to keep docker image small.
+RUN python3 ./alloy.py -b --version="$LLVM_VERSION" --selfbuild --llvm-disable-assertions --verbose && \
+    rm -rf "$LLVM_HOME"/build-"$LLVM_VERSION"_temp
+
+ENV PATH=$LLVM_HOME/bin-"$LLVM_VERSION"/bin:$PATH
+
+# Install regular ISPC dependencies
+RUN if [[ $(uname -m) =~ "x86" ]]; then export CROSS_LIBS="libc6-dev-i386=2.27-3ubuntu*"; else export CROSS_LIBS="libc6-dev-armhf-cross=2.27-3ubuntu*"; fi && \
+    apt-get -y update && apt-get --no-install-recommends install -y m4 bison flex "$CROSS_LIBS" && \
+    rm -rf /var/lib/apt/lists/*
+
+# Configure ISPC build
+WORKDIR /usr/local/src/ispc
+RUN mkdir build_"$LLVM_VERSION"
+WORKDIR /usr/local/src/ispc/build_"$LLVM_VERSION"
+RUN cmake .. -DISPC_PREPARE_PACKAGE=ON -DISPC_CROSS=ON -DX86_ENABLED=ON
+
+# Build ISPC
+RUN make package -j"$(nproc)" && make check-all