# Copyright (c) 2021 The Regents of the University of California
# All Rights Reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
FROM ubuntu:20.04

# Valid version values:
# 6.0
# 7
# 8
# 9
# 10
# 11
ARG version

ENV DEBIAN_FRONTEND=noninteractive
RUN apt -y update
RUN apt -y upgrade
RUN apt -y install git m4 scons zlib1g zlib1g-dev libprotobuf-dev \
    protobuf-compiler libprotoc-dev libgoogle-perftools-dev python3-dev \
    python3-six python-is-python3 doxygen libboost-all-dev libhdf5-serial-dev \
    python3-pydot libpng-dev clang-${version} make

RUN apt-get --purge -y remove gcc

RUN update-alternatives --install \
    /usr/bin/clang++ clang++ /usr/bin/clang++-${version} 100
RUN update-alternatives --install \
    /usr/bin/clang clang /usr/bin/clang-${version} 100
RUN update-alternatives --install \
    /usr/bin/c++ c++ /usr/bin/clang++-${version} 100
RUN update-alternatives --install \
    /usr/bin/cc cc /usr/bin/clang-${version} 100

Add Ubuntu 20.04 Clang Dockerfile
tests,util: Add Ubuntu 20.04 Clang Dockerfile

This new Dockerfiles enables use to build images for Clang versions 10
and 11, which are not available in Ubuntu 18.04 via APT.

Change-Id: I374a1c679377b7402a63241da34f9f4f7f5c7468
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/45681
Reviewed-by: Gabe Black <d3e8afea784ab4a50a2dbf9149d2eaa8478e1cbc@gmail.com>
Maintainer: Gabe Black <d3e8afea784ab4a50a2dbf9149d2eaa8478e1cbc@gmail.com>
Tested-by: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>
