sim_object.cc revision 6216:2f4020838149
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/stats/events.hh" 39#include "base/trace.hh" 40#include "base/types.hh" 41#include "sim/sim_object.hh" 42#include "sim/stats.hh" 43 44using namespace std; 45 46 47//////////////////////////////////////////////////////////////////////// 48// 49// SimObject member definitions 50// 51//////////////////////////////////////////////////////////////////////// 52 53// 54// static list of all SimObjects, used for initialization etc. 55// 56SimObject::SimObjectList SimObject::simObjectList; 57 58// 59// SimObject constructor: used to maintain static simObjectList 60// 61SimObject::SimObject(const Params *p) 62 : EventManager(p->eventq), _params(p) 63{ 64#ifdef DEBUG 65 doDebugBreak = false; 66#endif 67 68 simObjectList.push_back(this); 69 state = Running; 70} 71 72void 73SimObject::init() 74{ 75} 76 77// 78// no default statistics, so nothing to do in base implementation 79// 80void 81SimObject::regStats() 82{ 83} 84 85void 86SimObject::regFormulas() 87{ 88} 89 90void 91SimObject::resetStats() 92{ 93} 94 95// 96// static function: 97// call regStats() on all SimObjects and then regFormulas() on all 98// SimObjects. 99// 100struct SimObjectResetCB : public Callback 101{ 102 virtual void process() { SimObject::resetAllStats(); } 103}; 104 105namespace { 106 static SimObjectResetCB StatResetCB; 107} 108 109void 110SimObject::regAllStats() 111{ 112 SimObjectList::iterator i; 113 SimObjectList::iterator end = simObjectList.end(); 114 115 /** 116 * @todo change cprintfs to DPRINTFs 117 */ 118 for (i = simObjectList.begin(); i != end; ++i) { 119#ifdef STAT_DEBUG 120 cprintf("registering stats for %s\n", (*i)->name()); 121#endif 122 (*i)->regStats(); 123 } 124 125 for (i = simObjectList.begin(); i != end; ++i) { 126#ifdef STAT_DEBUG 127 cprintf("registering formulas for %s\n", (*i)->name()); 128#endif 129 (*i)->regFormulas(); 130 } 131 132 Stats::registerResetCallback(&StatResetCB); 133} 134 135// 136// static function: call init() on all SimObjects. 137// 138void 139SimObject::initAll() 140{ 141 SimObjectList::iterator i = simObjectList.begin(); 142 SimObjectList::iterator end = simObjectList.end(); 143 144 for (; i != end; ++i) { 145 SimObject *obj = *i; 146 obj->init(); 147 } 148} 149 150// 151// static function: call resetStats() on all SimObjects. 152// 153void 154SimObject::resetAllStats() 155{ 156 SimObjectList::iterator i = simObjectList.begin(); 157 SimObjectList::iterator end = simObjectList.end(); 158 159 for (; i != end; ++i) { 160 SimObject *obj = *i; 161 obj->resetStats(); 162 } 163} 164 165// 166// static function: serialize all SimObjects. 167// 168void 169SimObject::serializeAll(ostream &os) 170{ 171 SimObjectList::reverse_iterator ri = simObjectList.rbegin(); 172 SimObjectList::reverse_iterator rend = simObjectList.rend(); 173 174 for (; ri != rend; ++ri) { 175 SimObject *obj = *ri; 176 obj->nameOut(os); 177 obj->serialize(os); 178 } 179} 180 181void 182SimObject::unserializeAll(Checkpoint *cp) 183{ 184 SimObjectList::reverse_iterator ri = simObjectList.rbegin(); 185 SimObjectList::reverse_iterator rend = simObjectList.rend(); 186 187 for (; ri != rend; ++ri) { 188 SimObject *obj = *ri; 189 DPRINTFR(Config, "Unserializing '%s'\n", 190 obj->name()); 191 if(cp->sectionExists(obj->name())) 192 obj->unserialize(cp, obj->name()); 193 else 194 warn("Not unserializing '%s': no section found in checkpoint.\n", 195 obj->name()); 196 } 197} 198 199#ifdef DEBUG 200// 201// static function: flag which objects should have the debugger break 202// 203void 204SimObject::debugObjectBreak(const string &objs) 205{ 206 SimObjectList::const_iterator i = simObjectList.begin(); 207 SimObjectList::const_iterator end = simObjectList.end(); 208 209 ObjectMatch match(objs); 210 for (; i != end; ++i) { 211 SimObject *obj = *i; 212 obj->doDebugBreak = match.match(obj->name()); 213 } 214} 215 216void 217debugObjectBreak(const char *objs) 218{ 219 SimObject::debugObjectBreak(string(objs)); 220} 221#endif 222 223void 224SimObject::recordEvent(const std::string &stat) 225{ 226 Stats::recordEvent(stat); 227} 228 229unsigned int 230SimObject::drain(Event *drain_event) 231{ 232 state = Drained; 233 return 0; 234} 235 236void 237SimObject::resume() 238{ 239 state = Running; 240} 241 242void 243SimObject::setMemoryMode(State new_mode) 244{ 245 panic("setMemoryMode() should only be called on systems"); 246} 247 248void 249SimObject::switchOut() 250{ 251 panic("Unimplemented!"); 252} 253 254void 255SimObject::takeOverFrom(BaseCPU *cpu) 256{ 257 panic("Unimplemented!"); 258} 259 260 261SimObject * 262SimObject::find(const char *name) 263{ 264 SimObjectList::const_iterator i = simObjectList.begin(); 265 SimObjectList::const_iterator end = simObjectList.end(); 266 267 for (; i != end; ++i) { 268 SimObject *obj = *i; 269 if (obj->name() == name) 270 return obj; 271 } 272 273 return NULL; 274} 275