sim_object.cc revision 7527:fe90827a663f 
1/*
2 * Copyright (c) 2001-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Steve Reinhardt
29 *          Nathan Binkert
30 */
31
32#include <cassert>
33
34#include "base/callback.hh"
35#include "base/inifile.hh"
36#include "base/match.hh"
37#include "base/misc.hh"
38#include "base/trace.hh"
39#include "base/types.hh"
40#include "sim/sim_object.hh"
41#include "sim/stats.hh"
42
43using namespace std;
44
45
46////////////////////////////////////////////////////////////////////////
47//
48// SimObject member definitions
49//
50////////////////////////////////////////////////////////////////////////
51
52//
53// static list of all SimObjects, used for initialization etc.
54//
55SimObject::SimObjectList SimObject::simObjectList;
56
57//
58// SimObject constructor: used to maintain static simObjectList
59//
60SimObject::SimObject(const Params *p)
61    : EventManager(p->eventq), _params(p)
62{
63#ifdef DEBUG
64    doDebugBreak = false;
65#endif
66
67    simObjectList.push_back(this);
68    state = Running;
69}
70
71void
72SimObject::init()
73{
74}
75
76void
77SimObject::startup()
78{
79}
80
81//
82// no default statistics, so nothing to do in base implementation
83//
84void
85SimObject::regStats()
86{
87}
88
89void
90SimObject::regFormulas()
91{
92}
93
94void
95SimObject::resetStats()
96{
97}
98
99//
100// static function: serialize all SimObjects.
101//
102void
103SimObject::serializeAll(ostream &os)
104{
105    SimObjectList::reverse_iterator ri = simObjectList.rbegin();
106    SimObjectList::reverse_iterator rend = simObjectList.rend();
107
108    for (; ri != rend; ++ri) {
109        SimObject *obj = *ri;
110        obj->nameOut(os);
111        obj->serialize(os);
112   }
113}
114
115void
116SimObject::unserializeAll(Checkpoint *cp)
117{
118    SimObjectList::reverse_iterator ri = simObjectList.rbegin();
119    SimObjectList::reverse_iterator rend = simObjectList.rend();
120
121    for (; ri != rend; ++ri) {
122        SimObject *obj = *ri;
123        DPRINTFR(Config, "Unserializing '%s'\n",
124                 obj->name());
125        if(cp->sectionExists(obj->name()))
126            obj->unserialize(cp, obj->name());
127        else
128            warn("Not unserializing '%s': no section found in checkpoint.\n",
129                 obj->name());
130   }
131}
132
133
134
135#ifdef DEBUG
136//
137// static function: flag which objects should have the debugger break
138//
139void
140SimObject::debugObjectBreak(const string &objs)
141{
142    SimObjectList::const_iterator i = simObjectList.begin();
143    SimObjectList::const_iterator end = simObjectList.end();
144
145    ObjectMatch match(objs);
146    for (; i != end; ++i) {
147        SimObject *obj = *i;
148        obj->doDebugBreak = match.match(obj->name());
149   }
150}
151
152void
153debugObjectBreak(const char *objs)
154{
155    SimObject::debugObjectBreak(string(objs));
156}
157#endif
158
159unsigned int
160SimObject::drain(Event *drain_event)
161{
162    state = Drained;
163    return 0;
164}
165
166void
167SimObject::resume()
168{
169    state = Running;
170}
171
172void
173SimObject::setMemoryMode(State new_mode)
174{
175    panic("setMemoryMode() should only be called on systems");
176}
177
178void
179SimObject::switchOut()
180{
181    panic("Unimplemented!");
182}
183
184void
185SimObject::takeOverFrom(BaseCPU *cpu)
186{
187    panic("Unimplemented!");
188}
189
190
191SimObject *
192SimObject::find(const char *name)
193{
194    SimObjectList::const_iterator i = simObjectList.begin();
195    SimObjectList::const_iterator end = simObjectList.end();
196
197    for (; i != end; ++i) {
198        SimObject *obj = *i;
199        if (obj->name() == name)
200            return obj;
201    }
202
203    return NULL;
204}
205