sc_main.cc (12861:6cd674bd189a) sc_main.cc (12862:df3aaa5bda42)
1/*
2 * Copyright 2018 Google, Inc.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met: redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer;
8 * redistributions in binary form must reproduce the above copyright

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24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 * Authors: Gabe Black
28 */
29
30#include <cstring>
31
1/*
2 * Copyright 2018 Google, Inc.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met: redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer;
8 * redistributions in binary form must reproduce the above copyright

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24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 * Authors: Gabe Black
28 */
29
30#include <cstring>
31
32#include "base/fiber.hh"
32#include "base/logging.hh"
33#include "base/logging.hh"
34#include "base/types.hh"
33#include "python/pybind11/pybind.hh"
35#include "python/pybind11/pybind.hh"
36#include "sim/eventq.hh"
34#include "sim/init.hh"
35#include "systemc/ext/core/sc_main.hh"
36#include "systemc/ext/utils/sc_report_handler.hh"
37
38// A default version of this function in case one isn't otherwise defined.
39// This ensures everything will link properly whether or not the user defined
40// a custom sc_main function. If they didn't but still try to call it, throw
41// an error and die.

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52namespace
53{
54
55bool scMainCalled = false;
56
57int _argc = 0;
58char **_argv = NULL;
59
37#include "sim/init.hh"
38#include "systemc/ext/core/sc_main.hh"
39#include "systemc/ext/utils/sc_report_handler.hh"
40
41// A default version of this function in case one isn't otherwise defined.
42// This ensures everything will link properly whether or not the user defined
43// a custom sc_main function. If they didn't but still try to call it, throw
44// an error and die.

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55namespace
56{
57
58bool scMainCalled = false;
59
60int _argc = 0;
61char **_argv = NULL;
62
63class ScMainFiber : public Fiber
64{
65 void
66 main()
67 {
68 ::sc_main(_argc, _argv);
69 }
70};
71
72ScMainFiber scMainFiber;
73
60// This wrapper adapts the python version of sc_main to the c++ version.
61void
62sc_main(pybind11::args args)
63{
64 panic_if(scMainCalled, "sc_main called more than once.");
65
66 _argc = args.size();
67 _argv = new char *[_argc];

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89 _argc = 0;
90 throw;
91 }
92
93 // At this point we're going to call the c++ sc_main, so we can't try
94 // again later.
95 scMainCalled = true;
96
74// This wrapper adapts the python version of sc_main to the c++ version.
75void
76sc_main(pybind11::args args)
77{
78 panic_if(scMainCalled, "sc_main called more than once.");
79
80 _argc = args.size();
81 _argv = new char *[_argc];

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103 _argc = 0;
104 throw;
105 }
106
107 // At this point we're going to call the c++ sc_main, so we can't try
108 // again later.
109 scMainCalled = true;
110
97 //TODO Start a new fiber to call sc_main from.
98 ::sc_main(_argc, _argv);
111 scMainFiber.run();
99}
100
101// Make our sc_main wrapper available in the internal _m5 python module under
102// the systemc submodule.
103void
104systemc_pybind(pybind11::module &m_internal)
105{
106 pybind11::module m = m_internal.def_submodule("systemc");
107 m.def("sc_main", &sc_main);
108}
109EmbeddedPyBind embed_("systemc", &systemc_pybind);
110
111sc_stop_mode _stop_mode = SC_STOP_FINISH_DELTA;
112sc_status _status = SC_ELABORATION;
113
112}
113
114// Make our sc_main wrapper available in the internal _m5 python module under
115// the systemc submodule.
116void
117systemc_pybind(pybind11::module &m_internal)
118{
119 pybind11::module m = m_internal.def_submodule("systemc");
120 m.def("sc_main", &sc_main);
121}
122EmbeddedPyBind embed_("systemc", &systemc_pybind);
123
124sc_stop_mode _stop_mode = SC_STOP_FINISH_DELTA;
125sc_status _status = SC_ELABORATION;
126
127Tick _max_tick = MaxTick;
128sc_starvation_policy _starvation = SC_EXIT_ON_STARVATION;
129
114uint64_t _deltaCycles = 0;
115
116} // anonymous namespace
117
118int
119sc_argc()
120{
121 return _argc;
122}
123
124const char *const *
125sc_argv()
126{
127 return _argv;
128}
129
130void
131sc_start()
132{
130uint64_t _deltaCycles = 0;
131
132} // anonymous namespace
133
134int
135sc_argc()
136{
137 return _argc;
138}
139
140const char *const *
141sc_argv()
142{
143 return _argv;
144}
145
146void
147sc_start()
148{
133 warn("%s not implemented.\n", __PRETTY_FUNCTION__);
149 _max_tick = MaxTick;
150 _starvation = SC_EXIT_ON_STARVATION;
151
152 // Switch back gem5.
153 Fiber::primaryFiber()->run();
134}
135
136void
137sc_pause()
138{
139 warn("%s not implemented.\n", __PRETTY_FUNCTION__);
140}
141
142void
143sc_start(const sc_time &time, sc_starvation_policy p)
144{
154}
155
156void
157sc_pause()
158{
159 warn("%s not implemented.\n", __PRETTY_FUNCTION__);
160}
161
162void
163sc_start(const sc_time &time, sc_starvation_policy p)
164{
145 warn("%s not implemented.\n", __PRETTY_FUNCTION__);
165 Tick now = curEventQueue() ? curEventQueue()->getCurTick() : 0;
166 _max_tick = now + time.value();
167 _starvation = p;
168
169 // Switch back to gem5.
170 Fiber::primaryFiber()->run();
146}
147
148void
149sc_set_stop_mode(sc_stop_mode mode)
150{
151 if (sc_is_running()) {
152 SC_REPORT_ERROR("attempt to set sc_stop mode "
153 "after start will be ignored", "");

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172
173void
174sc_set_stop_mode(sc_stop_mode mode)
175{
176 if (sc_is_running()) {
177 SC_REPORT_ERROR("attempt to set sc_stop mode "
178 "after start will be ignored", "");

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