| /* |
| * Copyright 2018 Google, Inc. |
| * |
| * 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. |
| * |
| * Authors: Gabe Black |
| */ |
| |
| #include "systemc/sc_main.hh" |
| |
| #include <cstring> |
| |
| #include "base/logging.hh" |
| #include "python/pybind11/pybind.hh" |
| #include "sim/init.hh" |
| |
| // A default version of this function in case one isn't otherwise defined. |
| // This ensures everything will link properly whether or not the user defined |
| // a custom sc_main function. If they didn't but still try to call it, throw |
| // an error and die. |
| [[gnu::weak]] int |
| sc_main(int argc, char *argv[]) |
| { |
| // If python attempts to call sc_main but no sc_main was defined... |
| fatal("sc_main called but not defined.\n"); |
| } |
| |
| namespace sc_core |
| { |
| |
| namespace |
| { |
| |
| bool scMainCalled = false; |
| |
| int _argc = 0; |
| char **_argv = NULL; |
| |
| // This wrapper adapts the python version of sc_main to the c++ version. |
| void |
| sc_main(pybind11::args args) |
| { |
| panic_if(scMainCalled, "sc_main called more than once."); |
| |
| _argc = args.size(); |
| _argv = new char *[_argc]; |
| |
| // Initialize all the _argvs to NULL so we can delete [] them |
| // unconditionally. |
| for (int idx = 0; idx < _argc; idx++) |
| _argv[idx] = NULL; |
| |
| // Attempt to convert all the arguments to strings. If that fails, clean |
| // up after ourselves. Also don't count this as a call to sc_main since |
| // we never got to the c++ version of that function. |
| try { |
| for (int idx = 0; idx < _argc; idx++) { |
| std::string arg = args[idx].cast<std::string>(); |
| _argv[idx] = new char[arg.length() + 1]; |
| strcpy(_argv[idx], arg.c_str()); |
| } |
| } catch (...) { |
| // If that didn't work for some reason (probably a conversion error) |
| // blow away _argv and _argc and pass on the exception. |
| for (int idx = 0; idx < _argc; idx++) |
| delete [] _argv[idx]; |
| delete [] _argv; |
| _argc = 0; |
| throw; |
| } |
| |
| // At this point we're going to call the c++ sc_main, so we can't try |
| // again later. |
| scMainCalled = true; |
| |
| //TODO Start a new fiber to call sc_main from. |
| ::sc_main(_argc, _argv); |
| } |
| |
| // Make our sc_main wrapper available in the internal _m5 python module under |
| // the systemc submodule. |
| void |
| systemc_pybind(pybind11::module &m_internal) |
| { |
| pybind11::module m = m_internal.def_submodule("systemc"); |
| m.def("sc_main", &sc_main); |
| } |
| EmbeddedPyBind embed_("systemc", &systemc_pybind); |
| |
| } // anonymous namespace |
| |
| int |
| sc_argc() |
| { |
| return _argc; |
| } |
| |
| const char *const * |
| sc_argv() |
| { |
| return _argv; |
| } |
| |
| } // namespace sc_core |