113373Sgabeblack@google.com# Copyright 2018 Google, Inc. 213373Sgabeblack@google.com# 313373Sgabeblack@google.com# Redistribution and use in source and binary forms, with or without 413373Sgabeblack@google.com# modification, are permitted provided that the following conditions are 513373Sgabeblack@google.com# met: redistributions of source code must retain the above copyright 613373Sgabeblack@google.com# notice, this list of conditions and the following disclaimer; 713373Sgabeblack@google.com# redistributions in binary form must reproduce the above copyright 813373Sgabeblack@google.com# notice, this list of conditions and the following disclaimer in the 913373Sgabeblack@google.com# documentation and/or other materials provided with the distribution; 1013373Sgabeblack@google.com# neither the name of the copyright holders nor the names of its 1113373Sgabeblack@google.com# contributors may be used to endorse or promote products derived from 1213373Sgabeblack@google.com# this software without specific prior written permission. 1313373Sgabeblack@google.com# 1413373Sgabeblack@google.com# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1513373Sgabeblack@google.com# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1613373Sgabeblack@google.com# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1713373Sgabeblack@google.com# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 1813373Sgabeblack@google.com# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 1913373Sgabeblack@google.com# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2013373Sgabeblack@google.com# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2113373Sgabeblack@google.com# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2213373Sgabeblack@google.com# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2313373Sgabeblack@google.com# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2413373Sgabeblack@google.com# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2513373Sgabeblack@google.com# 2613373Sgabeblack@google.com# Authors: Gabe Black 2713373Sgabeblack@google.com 2813373Sgabeblack@google.comimport argparse 2913373Sgabeblack@google.comimport m5 3013373Sgabeblack@google.comimport sys 3113373Sgabeblack@google.com 3213373Sgabeblack@google.comfrom m5.objects import SystemC_Kernel, Root 3313373Sgabeblack@google.com 3413373Sgabeblack@google.com# pylint:disable=unused-variable 3513373Sgabeblack@google.com 3613373Sgabeblack@google.com# The python version of the systemc kernel acts as an interface to sc_main. The 3713373Sgabeblack@google.com# c++ version of the kernel object has a lot of important jobs supporting 3813373Sgabeblack@google.com# systemc objects and needs to exist in simulations using systemc. 3913373Sgabeblack@google.comkernel = SystemC_Kernel() 4013373Sgabeblack@google.comroot = Root(full_system=True, systemc_kernel=kernel) 4113373Sgabeblack@google.com 4213373Sgabeblack@google.comparser = argparse.ArgumentParser() 4313373Sgabeblack@google.comparser.add_argument('--word', action="append", default=[], 4413373Sgabeblack@google.com help='Add a word to the list of words to print. Can be repeated.') 4513373Sgabeblack@google.com 4613373Sgabeblack@google.comargs = parser.parse_args() 4713373Sgabeblack@google.com 4813373Sgabeblack@google.com# Tell gem5 to run the c++ sc_main function. If one isn't defined, gem5 will 4913373Sgabeblack@google.com# detect that and report an error. If gem5 isn't finding your sc_main, make 5013373Sgabeblack@google.com# sure its signature matches exactly so your compiler doesn't think it's a 5113373Sgabeblack@google.com# different function. 5213373Sgabeblack@google.com# 5313373Sgabeblack@google.com# The arguements passed to this function will be treated as the argv values 5413373Sgabeblack@google.com# passed to the c++ sc_main, with the argc value set appropriately. 5513728Sgabeblack@google.comm5.systemc.sc_main(*args.word); 5613373Sgabeblack@google.com 5713373Sgabeblack@google.com# Construct the SimObject hierarchy. Anything sc_main built has already been 5813373Sgabeblack@google.com# constructed. 5913373Sgabeblack@google.comm5.instantiate(None) 6013373Sgabeblack@google.com 6113373Sgabeblack@google.com# Run the simulation until something kicks us back to the config file. sc_main 6213373Sgabeblack@google.com# will be at the point it first called sc_start and may keep executing as the 6313373Sgabeblack@google.com# simulation runs, or it may be completed if it never called sc_start. 6413373Sgabeblack@google.comcause = m5.simulate(m5.MaxTick).getCause() 6513373Sgabeblack@google.com 6613373Sgabeblack@google.com# If sc_main finished, extract what it returned and do something with it. 6713728Sgabeblack@google.comresult = m5.systemc.sc_main_result() 6813373Sgabeblack@google.comif result.code != 0: 6913373Sgabeblack@google.com sys.exit(int(result.code)) 70