misc: Added Dockerfile for clang

This will create a Docker image with all gem5 dependencies, allowing for
a specific clang version to be specified via `--build args version=X`.
I.e., to create an image with clang 6,
`docker build util/dockerfiles/clang-version --build-arg version=6`

Issue-on: https://gem5.atlassian.net/browse/GEM5-235
Change-Id: I7d12acd265d7aef2a9e90f348f4214231effe509
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/26484
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>

diff --git a/util/dockerfiles/clang-version/Dockerfile b/util/dockerfiles/clang-version/Dockerfile
new file mode 100644 (file)
index 0000000..428bd02
--- /dev/null
+++ b/util/dockerfiles/clang-version/Dockerfile
@@ -0,0 +1,54 @@
+# Copyright (c) 2020 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
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+FROM ubuntu:18.04
+
+# Valid version values:
+# 3.9
+# 4.0
+# 5.0
+# 6.0
+# 7
+# 8
+# 9
+ARG version
+
+RUN apt -y update
+RUN apt -y upgrade
+RUN apt -y install git m4 scons zlib1g zlib1g-dev clang-${version} \
+    libprotobuf-dev protobuf-compiler libprotoc-dev libgoogle-perftools-dev \
+    python-dev python python-six doxygen
+
+RUN apt-get --purge -y remove gcc
+
+RUN update-alternatives --install \
+    /usr/bin/clang++ clang++ /usr/bin/clang++-${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