619e443700
Use pybind11 to simplify the python parts, update some inaccurate comments, rename m5Main to gem5Main, remove code which supported python versions less than 3. Change-Id: I139af7d3d1052cfbce779a87e34d7ce997876a60 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/49414 Reviewed-by: Gabe Black <gabe.black@gmail.com> Maintainer: Gabe Black <gabe.black@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
86 lines
3.4 KiB
Python
86 lines
3.4 KiB
Python
# Copyright (c) 2008 The Hewlett-Packard Development Company
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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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import importlib
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import importlib.abc
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import importlib.util
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import os
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class ByteCodeLoader(importlib.abc.Loader):
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def __init__(self, code):
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super().__init__()
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self.code = code
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def exec_module(self, module):
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exec(self.code, module.__dict__)
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# Simple importer that allows python to import data from a dict of
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# code objects. The keys are the module path, and the items are the
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# filename and bytecode of the file.
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class CodeImporter(object):
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def __init__(self):
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self.modules = {}
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override_var = os.environ.get('M5_OVERRIDE_PY_SOURCE', 'false')
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self.override = (override_var.lower() in ('true', 'yes'))
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def add_module(self, abspath, modpath, code):
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if modpath in self.modules:
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raise AttributeError("%s already found in importer" % modpath)
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self.modules[modpath] = (abspath, code)
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def find_spec(self, fullname, path, target=None):
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if fullname not in self.modules:
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return None
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abspath, code = self.modules[fullname]
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if self.override and os.path.exists(abspath):
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src = open(abspath, 'r').read()
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code = compile(src, abspath, 'exec')
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is_package = (os.path.basename(abspath) == '__init__.py')
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spec = importlib.util.spec_from_loader(
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name=fullname, loader=ByteCodeLoader(code),
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is_package=is_package)
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spec.loader_state = self.modules.keys()
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return spec
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# Create an importer and add it to the meta_path so future imports can
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# use it. There's currently nothing in the importer, but calls to
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# add_module can be used to add code.
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def install():
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importer = CodeImporter()
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global add_module
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add_module = importer.add_module
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import sys
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sys.meta_path.insert(0, importer)
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# Injected into this module's namespace by the c++ code that loads it.
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_init_all_embedded()
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