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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28 */
29
30#include "systemc/core/kernel.hh"
31
32#include "base/logging.hh"
33#include "systemc/core/channel.hh"
34#include "systemc/core/module.hh"
35#include "systemc/core/port.hh"
36#include "systemc/core/sc_main_fiber.hh"
37#include "systemc/core/scheduler.hh"
38
39namespace sc_gem5
40{
41
42namespace
43{
44
45bool stopAfterCallbacks = false;
46bool startComplete = false;
47bool endComplete = false;
48
49sc_core::sc_status _status = sc_core::SC_ELABORATION;
50
51} // anonymous namespace
52
53bool Kernel::startOfSimulationComplete() { return startComplete; }
54bool Kernel::endOfSimulationComplete() { return endComplete; }
55
56sc_core::sc_status Kernel::status() { return _status; }
57void Kernel::status(sc_core::sc_status s) { _status = s; }
58
59Kernel::Kernel(Params *params) :
60 SimObject(params), t0Event(this, false, EventBase::Default_Pri - 1)
61{
62 // Install ourselves as the scheduler's event manager.
63 ::sc_gem5::scheduler.setEventQueue(eventQueue());
64}
65
66void
67Kernel::init()
68{
69 if (scMainFiber.finished())
70 return;
71
72 if (stopAfterCallbacks)
73 fatal("Simulation called sc_stop during elaboration.\n");
74
75 status(::sc_core::SC_BEFORE_END_OF_ELABORATION);
76 for (auto p: allPorts)
77 p->sc_port_base()->before_end_of_elaboration();
78 for (auto m: sc_gem5::allModules)
79 m->beforeEndOfElaboration();
80 for (auto c: sc_gem5::allChannels)
81 c->sc_chan()->before_end_of_elaboration();
82
83 ::sc_gem5::scheduler.elaborationDone(true);
84}
85
86void
87Kernel::regStats()
88{
89 if (scMainFiber.finished() || stopAfterCallbacks)
90 return;
91
92 try {
93 for (auto p: allPorts)
94 p->finalize();
95 for (auto p: allPorts)
96 p->regPort();
97

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105 } catch (...) {
106 ::sc_gem5::scheduler.throwToScMain();
107 }
108}
109
110void
111Kernel::startup()
112{
113 if (scMainFiber.finished())
114 return;
115
116 schedule(t0Event, curTick());
117
118 if (stopAfterCallbacks)
119 return;
120
121 try {

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