257834d23f
As gem5 has started to use Python2 incompatible features, compiling gem5 in a Python2 environment results in an error. This commit addresses this issue by raising an Exception when scons is run in a Python2 environment, and adding a few pointers on how to install Python3 and on how to use scons in a Python3 environment. The solution works in a system where both Python2 and Python3 are installed. JIRA: https://gem5.atlassian.net/browse/GEM5-797 Change-Id: I98d4a39f586f39d9253ab2517b77e86c5ed19466 Signed-off-by: Hoa Nguyen <hoanguyen@ucdavis.edu> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/36157 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
89 lines
3.6 KiB
Python
89 lines
3.6 KiB
Python
# Copyright (c) 2013, 2015-2017 ARM Limited
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# All rights reserved.
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#
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# The license below extends only to copyright in the software and shall
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# not be construed as granting a license to any other intellectual
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# property including but not limited to intellectual property relating
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# to a hardware implementation of the functionality of the software
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# licensed hereunder. You may use the software subject to the license
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# terms below provided that you ensure that this notice is replicated
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# unmodified and in its entirety in all distributions of the software,
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# modified or unmodified, in source code or in binary form.
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#
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# Copyright (c) 2011 Advanced Micro Devices, Inc.
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# Copyright (c) 2009 The Hewlett-Packard Development Company
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# Copyright (c) 2004-2005 The Regents of The University of Michigan
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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from __future__ import print_function
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from gem5_python_paths import extra_python_paths
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# Check for recent-enough Python and SCons versions.
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try:
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EnsureSConsVersion(3, 0, 0)
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except SystemExit as e:
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print("""
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For more details, see:
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http://gem5.org/documentation/general_docs/building
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""")
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raise
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# Check for the python version. Python 2 is no longer supported.
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try:
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EnsurePythonVersion(3, 0)
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except SystemExit as e:
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print("""\033[93m
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Python 3 is now required.
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The following are steps to compile gem5 in Python 3 environment,
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*Step 1*: ensure Python 3 is installed. On Ubuntu like systems, you can try \
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this command:
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sudo apt-get install python3 python3-six python-is-python3 python3-pydot
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To run Python 3 from a container, you can try the Docker files in \
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util/dockerfiles folder.
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*Step 2*: ensure that scons is run in the Python 3 environment. If scons \
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isn't run automatically with Python 3, you can force it by replacing `scons` \
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by the following phrase,
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/usr/bin/env python3 $(which scons)
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For example, the following command will let scons compile gem5/X86 in the \
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Python 3 environment,
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/usr/bin/env python3 $(which scons) build/X86/gem5.opt
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(Optional) For convenience reasons, you can set up an alias for the Python3 \
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scons phrase in your environment. \033[0m
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""")
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raise
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sys.path[1:1] = extra_python_paths
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