The learning gem5 scripts currently assumes that the current working directory is the root of gem5's source tree. This isn't necessarily the case when running the tests using gem5's new test runner. Change-Id: Ief569bbe77b1b3e2b0fb0e6c575fb0705bbba9b3 Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
221 lines
7.2 KiB
Python
221 lines
7.2 KiB
Python
# Copyright (c) 2012 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) 2006-2007 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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#
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# Authors: Steve Reinhardt
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import os
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import sys
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import re
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import string
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from os.path import join as joinpath
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import os.path
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import os
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import m5
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def skip_test(reason=""):
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"""Signal that a test should be skipped and optionally print why.
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Keyword arguments:
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reason -- Reason why the test failed. Output is omitted if empty.
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"""
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if reason:
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print "Skipping test: %s" % reason
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sys.exit(2)
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def has_sim_object(name):
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"""Test if a SimObject exists in the simulator.
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Arguments:
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name -- Name of SimObject (string)
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Returns: True if the object exists, False otherwise.
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"""
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try:
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cls = getattr(m5.objects, name)
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return issubclass(cls, m5.objects.SimObject)
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except AttributeError:
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return False
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def require_sim_object(name, fatal=False):
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"""Test if a SimObject exists and abort/skip test if not.
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Arguments:
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name -- Name of SimObject (string)
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Keyword arguments:
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fatal -- Set to True to indicate that the test should fail
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instead of being skipped.
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"""
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if has_sim_object(name):
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return
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else:
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msg = "Test requires the '%s' SimObject." % name
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if fatal:
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m5.fatal(msg)
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else:
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skip_test(msg)
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def require_file(path, fatal=False, mode=os.F_OK):
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"""Test if a file exists and abort/skip test if not.
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Arguments:
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path -- File to test for.
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Keyword arguments:
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fatal -- Set to True to indicate that the test should fail
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instead of being skipped.
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modes -- Mode to test for, default to existence. See the
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Python documentation for os.access().
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"""
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if os.access(path, mode):
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return
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else:
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msg = "Test requires '%s'" % path
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if not os.path.exists(path):
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msg += " which does not exist."
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else:
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msg += " which has incorrect permissions."
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if fatal:
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m5.fatal(msg)
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else:
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skip_test(msg)
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def require_kvm(kvm_dev="/dev/kvm", fatal=False):
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"""Test if KVM is available.
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Keyword arguments:
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kvm_dev -- Device to test (normally /dev/kvm)
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fatal -- Set to True to indicate that the test should fail
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instead of being skipped.
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"""
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require_sim_object("BaseKvmCPU", fatal=fatal)
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require_file(kvm_dev, fatal=fatal, mode=os.R_OK | os.W_OK)
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def run_test(root):
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"""Default run_test implementations. Scripts can override it."""
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# instantiate configuration
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m5.instantiate()
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# simulate until program terminates
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exit_event = m5.simulate(maxtick)
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print 'Exiting @ tick', m5.curTick(), 'because', exit_event.getCause()
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# Since we're in batch mode, dont allow tcp socket connections
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m5.disableAllListeners()
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# single "path" arg encodes everything we need to know about test
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(category, mode, name, isa, opsys, config) = sys.argv[1].split('/')[-6:]
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# find path to directory containing this file
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tests_root = os.path.dirname(__file__)
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test_progs = os.environ.get('M5_TEST_PROGS', '/dist/m5/regression/test-progs')
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if not os.path.isdir(test_progs):
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test_progs = joinpath(tests_root, 'test-progs')
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# generate path to binary file
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def binpath(app, file=None):
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# executable has same name as app unless specified otherwise
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if not file:
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file = app
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return joinpath(test_progs, app, 'bin', isa, opsys, file)
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# generate path to input file
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def inputpath(app, file=None):
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# input file has same name as app unless specified otherwise
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if not file:
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file = app
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return joinpath(test_progs, app, 'input', file)
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def srcpath(path):
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"""Path to file in gem5's source tree"""
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return joinpath(os.path.dirname(__file__), "..", path)
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# build configuration
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sys.path.append(joinpath(tests_root, 'configs'))
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test_filename = config
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# for ruby configurations, remove the protocol name from the test filename
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if re.search('-ruby', test_filename):
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test_filename = test_filename.split('-ruby')[0]+'-ruby'
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execfile(joinpath(tests_root, 'configs', test_filename + '.py'))
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# set default maxtick... script can override
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# -1 means run forever
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maxtick = m5.MaxTick
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# tweak configuration for specific test
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sys.path.append(joinpath(tests_root, category, mode, name))
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execfile(joinpath(tests_root, category, mode, name, 'test.py'))
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# Initialize all CPUs in a system
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def initCPUs(sys):
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def initCPU(cpu):
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# We might actually have a MemTest object or something similar
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# here that just pretends to be a CPU.
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try:
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cpu.createThreads()
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except:
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pass
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# The CPU attribute doesn't exist in some cases, e.g. the Ruby
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# testers.
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if not hasattr(sys, "cpu"):
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return
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# The CPU can either be a list of CPUs or a single object.
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if isinstance(sys.cpu, list):
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[ initCPU(cpu) for cpu in sys.cpu ]
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else:
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initCPU(sys.cpu)
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# We might be creating a single system or a dual system. Try
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# initializing the CPUs in all known system attributes.
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for sysattr in [ "system", "testsys", "drivesys" ]:
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if hasattr(root, sysattr):
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initCPUs(getattr(root, sysattr))
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run_test(root)
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