| # Copyright 2004-2006 The Regents of The University of Michigan |
| # Copyright 2010-20013 Advanced Micro Devices, Inc. |
| # Copyright 2013 Mark D. Hill and David A. Wood |
| # Copyright 2017-2020 ARM Limited |
| # Copyright 2021 Google, Inc. |
| # |
| # The license below extends only to copyright in the software and shall |
| # not be construed as granting a license to any other intellectual |
| # property including but not limited to intellectual property relating |
| # to a hardware implementation of the functionality of the software |
| # licensed hereunder. You may use the software subject to the license |
| # terms below provided that you ensure that this notice is replicated |
| # unmodified and in its entirety in all distributions of the software, |
| # modified or unmodified, in source code or in binary form. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer; |
| # redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution; |
| # neither the name of the copyright holders nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| import argparse |
| import importlib |
| import os.path |
| import sys |
| |
| import importer |
| |
| from code_formatter import code_formatter |
| |
| parser = argparse.ArgumentParser() |
| parser.add_argument('modpath', help='module the simobject belongs to') |
| parser.add_argument('param_hh', help='parameter header file to generate') |
| |
| args = parser.parse_args() |
| |
| basename = os.path.basename(args.param_hh) |
| sim_object_name = os.path.splitext(basename)[0] |
| |
| importer.install() |
| module = importlib.import_module(args.modpath) |
| sim_object = getattr(module, sim_object_name) |
| |
| from m5.objects.SimObject import SimObject |
| from m5.params import Enum |
| |
| code = code_formatter() |
| |
| # The 'local' attribute restricts us to the params declared in |
| # the object itself, not including inherited params (which |
| # will also be inherited from the base class's param struct |
| # here). Sort the params based on their key |
| params = list(map(lambda k_v: k_v[1], |
| sorted(sim_object._params.local.items()))) |
| ports = sim_object._ports.local |
| try: |
| ptypes = [p.ptype for p in params] |
| except: |
| print(sim_object) |
| print(params) |
| raise |
| |
| warned_about_nested_templates = False |
| |
| class CxxClass(object): |
| def __init__(self, sig, template_params=[]): |
| # Split the signature into its constituent parts. This could |
| # potentially be done with regular expressions, but |
| # it's simple enough to pick appart a class signature |
| # manually. |
| parts = sig.split('<', 1) |
| base = parts[0] |
| t_args = [] |
| if len(parts) > 1: |
| # The signature had template arguments. |
| text = parts[1].rstrip(' \t\n>') |
| arg = '' |
| # Keep track of nesting to avoid splitting on ","s embedded |
| # in the arguments themselves. |
| depth = 0 |
| for c in text: |
| if c == '<': |
| depth = depth + 1 |
| if depth > 0 and not warned_about_nested_templates: |
| warned_about_nested_templates = True |
| print('Nested template argument in cxx_class.' |
| ' This feature is largely untested and ' |
| ' may not work.') |
| elif c == '>': |
| depth = depth - 1 |
| elif c == ',' and depth == 0: |
| t_args.append(arg.strip()) |
| arg = '' |
| else: |
| arg = arg + c |
| if arg: |
| t_args.append(arg.strip()) |
| # Split the non-template part on :: boundaries. |
| class_path = base.split('::') |
| |
| # The namespaces are everything except the last part of the class path. |
| self.namespaces = class_path[:-1] |
| # And the class name is the last part. |
| self.name = class_path[-1] |
| |
| self.template_params = template_params |
| self.template_arguments = [] |
| # Iterate through the template arguments and their values. This |
| # will likely break if parameter packs are used. |
| for arg, param in zip(t_args, template_params): |
| type_keys = ('class', 'typename') |
| # If a parameter is a type, parse it recursively. Otherwise |
| # assume it's a constant, and store it verbatim. |
| if any(param.strip().startswith(kw) for kw in type_keys): |
| self.template_arguments.append(CxxClass(arg)) |
| else: |
| self.template_arguments.append(arg) |
| |
| def declare(self, code): |
| # First declare any template argument types. |
| for arg in self.template_arguments: |
| if isinstance(arg, CxxClass): |
| arg.declare(code) |
| # Re-open the target namespace. |
| for ns in self.namespaces: |
| code('namespace $ns {') |
| # If this is a class template... |
| if self.template_params: |
| code('template <${{", ".join(self.template_params)}}>') |
| # The actual class declaration. |
| code('class ${{self.name}};') |
| # Close the target namespaces. |
| for ns in reversed(self.namespaces): |
| code('} // namespace $ns') |
| |
| code('''\ |
| #ifndef __PARAMS__${sim_object}__ |
| #define __PARAMS__${sim_object}__ |
| |
| ''') |
| |
| |
| # The base SimObject has a couple of params that get |
| # automatically set from Python without being declared through |
| # the normal Param mechanism; we slip them in here (needed |
| # predecls now, actual declarations below) |
| if sim_object == SimObject: |
| code('''#include <string>''') |
| |
| cxx_class = CxxClass(sim_object._value_dict['cxx_class'], |
| sim_object._value_dict['cxx_template_params']) |
| |
| # A forward class declaration is sufficient since we are just |
| # declaring a pointer. |
| cxx_class.declare(code) |
| |
| for param in params: |
| param.cxx_predecls(code) |
| for port in ports.values(): |
| port.cxx_predecls(code) |
| code() |
| |
| if sim_object._base: |
| code('#include "params/${{sim_object._base.type}}.hh"') |
| code() |
| |
| for ptype in ptypes: |
| if issubclass(ptype, Enum): |
| code('#include "enums/${{ptype.__name__}}.hh"') |
| code() |
| |
| code('namespace gem5') |
| code('{') |
| code('') |
| |
| # now generate the actual param struct |
| code("struct ${sim_object}Params") |
| if sim_object._base: |
| code(" : public ${{sim_object._base.type}}Params") |
| code("{") |
| if not hasattr(sim_object, 'abstract') or not sim_object.abstract: |
| if 'type' in sim_object.__dict__: |
| code(" ${{sim_object.cxx_type}} create() const;") |
| |
| code.indent() |
| if sim_object == SimObject: |
| code(''' |
| SimObjectParams() {} |
| virtual ~SimObjectParams() {} |
| |
| std::string name; |
| ''') |
| |
| for param in params: |
| param.cxx_decl(code) |
| for port in ports.values(): |
| port.cxx_decl(code) |
| |
| code.dedent() |
| code('};') |
| code() |
| code('} // namespace gem5') |
| |
| code() |
| code('#endif // __PARAMS__${sim_object}__') |
| |
| code.write(args.param_hh) |
