sim_object.cc revision 7532:3f6413fc37a2 
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::loadState(Checkpoint *cp)
78{
79    if (cp->sectionExists(name()))
80        unserialize(cp, name());
81}
82
83void
84SimObject::initState()
85{
86}
87
88void
89SimObject::startup()
90{
91}
92
93//
94// no default statistics, so nothing to do in base implementation
95//
96void
97SimObject::regStats()
98{
99}
100
101void
102SimObject::regFormulas()
103{
104}
105
106void
107SimObject::resetStats()
108{
109}
110
111//
112// static function: serialize all SimObjects.
113//
114void
115SimObject::serializeAll(ostream &os)
116{
117    SimObjectList::reverse_iterator ri = simObjectList.rbegin();
118    SimObjectList::reverse_iterator rend = simObjectList.rend();
119
120    for (; ri != rend; ++ri) {
121        SimObject *obj = *ri;
122        obj->nameOut(os);
123        obj->serialize(os);
124   }
125}
126
127void
128SimObject::unserializeAll(Checkpoint *cp)
129{
130    SimObjectList::reverse_iterator ri = simObjectList.rbegin();
131    SimObjectList::reverse_iterator rend = simObjectList.rend();
132
133    for (; ri != rend; ++ri) {
134        SimObject *obj = *ri;
135        DPRINTFR(Config, "Unserializing '%s'\n",
136                 obj->name());
137        if(cp->sectionExists(obj->name()))
138            obj->unserialize(cp, obj->name());
139        else
140            warn("Not unserializing '%s': no section found in checkpoint.\n",
141                 obj->name());
142   }
143}
144
145
146
147#ifdef DEBUG
148//
149// static function: flag which objects should have the debugger break
150//
151void
152SimObject::debugObjectBreak(const string &objs)
153{
154    SimObjectList::const_iterator i = simObjectList.begin();
155    SimObjectList::const_iterator end = simObjectList.end();
156
157    ObjectMatch match(objs);
158    for (; i != end; ++i) {
159        SimObject *obj = *i;
160        obj->doDebugBreak = match.match(obj->name());
161   }
162}
163
164void
165debugObjectBreak(const char *objs)
166{
167    SimObject::debugObjectBreak(string(objs));
168}
169#endif
170
171unsigned int
172SimObject::drain(Event *drain_event)
173{
174    state = Drained;
175    return 0;
176}
177
178void
179SimObject::resume()
180{
181    state = Running;
182}
183
184void
185SimObject::setMemoryMode(State new_mode)
186{
187    panic("setMemoryMode() should only be called on systems");
188}
189
190void
191SimObject::switchOut()
192{
193    panic("Unimplemented!");
194}
195
196void
197SimObject::takeOverFrom(BaseCPU *cpu)
198{
199    panic("Unimplemented!");
200}
201
202
203SimObject *
204SimObject::find(const char *name)
205{
206    SimObjectList::const_iterator i = simObjectList.begin();
207    SimObjectList::const_iterator end = simObjectList.end();
208
209    for (; i != end; ++i) {
210        SimObject *obj = *i;
211        if (obj->name() == name)
212            return obj;
213    }
214
215    return NULL;
216}
217