33e3365bf9
This change pulls the systemc python module creation code out of sc_main and puts it into a more general purpose python.hh and python.cc which can be used by other code to add other entries into that module without having to track that in a central place. This change also adds a mechanism for notifying C++ code that the embedded python interpretter is up and ready to interact with in case it needs to call some python only functionality. An example of that is the code which tracks and then fixes the timescale for the simulator. Change-Id: I9afcd5a089b21d23ebc1b5fdb6f643ae2f7e5f11 Reviewed-on: https://gem5-review.googlesource.com/12069 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
72 lines
3.0 KiB
Python
72 lines
3.0 KiB
Python
# Copyright 2018 Google, Inc.
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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: Gabe Black
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from m5.SimObject import SimObject
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# This class represents the systemc kernel. There should be exactly one in the
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# simulation. It receives gem5 SimObject lifecycle callbacks (init, regStats,
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# etc.) and manages the lifecycle of the systemc simulation accordingly.
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# It also acts as a collecting point for systemc related control functionality.
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class SystemC_Kernel(SimObject):
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type = 'SystemC_Kernel'
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cxx_class = 'sc_gem5::Kernel'
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cxx_header = 'systemc/core/kernel.hh'
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def sc_main(self, *args):
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'''Call the systemc sc_main function with the given string args'''
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from _m5.systemc import sc_main
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sc_main(*args)
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# This class represents systemc sc_object instances in python config files. It
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# inherits from SimObject in python, but the c++ version, sc_core::sc_object,
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# doesn't inherit from gem5's c++ SimObject class.
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class SystemC_ScObject(SimObject):
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type = 'SystemC_ScObject'
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abstract = True
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cxx_class = 'sc_core::sc_object'
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cxx_header = 'systemc/ext/core/sc_object.hh'
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# Clear cxx_base to stop the c++ binding code from assuming
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# sc_core::sc_object inherits from SimObject, even though SystemC_ScObject
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# does on the python side.
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cxx_base = None
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# Hide the cxx_exports from SimObject since we don't inherit from
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# SimObject on the c++ side and so don't have those methods to call down
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# into.
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locals().update({
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method.name: (lambda *a, **k: None) for method in SimObject.cxx_exports
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})
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try:
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import _m5
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except:
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pass
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else:
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import _m5.systemc
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_m5.systemc.python_ready()
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