sim_object.cc revision 7492
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: 101// call regStats() on all SimObjects and then regFormulas() on all 102// SimObjects. 103// 104struct SimObjectResetCB : public Callback 105{ 106 virtual void process() { SimObject::resetAllStats(); } 107}; 108 109namespace { 110 static SimObjectResetCB StatResetCB; 111} 112 113void 114SimObject::regAllStats() 115{ 116 SimObjectList::iterator i; 117 SimObjectList::iterator end = simObjectList.end(); 118 119 /** 120 * @todo change cprintfs to DPRINTFs 121 */ 122 for (i = simObjectList.begin(); i != end; ++i) { 123#ifdef STAT_DEBUG 124 cprintf("registering stats for %s\n", (*i)->name()); 125#endif 126 (*i)->regStats(); 127 } 128 129 for (i = simObjectList.begin(); i != end; ++i) { 130#ifdef STAT_DEBUG 131 cprintf("registering formulas for %s\n", (*i)->name()); 132#endif 133 (*i)->regFormulas(); 134 } 135 136 Stats::registerResetCallback(&StatResetCB); 137} 138 139// 140// static function: call init() on all SimObjects. 141// 142void 143SimObject::initAll() 144{ 145 SimObjectList::iterator i = simObjectList.begin(); 146 SimObjectList::iterator end = simObjectList.end(); 147 148 for (; i != end; ++i) { 149 SimObject *obj = *i; 150 obj->init(); 151 } 152} 153 154// 155// static function: call resetStats() on all SimObjects. 156// 157void 158SimObject::resetAllStats() 159{ 160 SimObjectList::iterator i = simObjectList.begin(); 161 SimObjectList::iterator end = simObjectList.end(); 162 163 for (; i != end; ++i) { 164 SimObject *obj = *i; 165 obj->resetStats(); 166 } 167} 168 169// 170// static function: serialize all SimObjects. 171// 172void 173SimObject::serializeAll(ostream &os) 174{ 175 SimObjectList::reverse_iterator ri = simObjectList.rbegin(); 176 SimObjectList::reverse_iterator rend = simObjectList.rend(); 177 178 for (; ri != rend; ++ri) { 179 SimObject *obj = *ri; 180 obj->nameOut(os); 181 obj->serialize(os); 182 } 183} 184 185void 186SimObject::unserializeAll(Checkpoint *cp) 187{ 188 SimObjectList::reverse_iterator ri = simObjectList.rbegin(); 189 SimObjectList::reverse_iterator rend = simObjectList.rend(); 190 191 for (; ri != rend; ++ri) { 192 SimObject *obj = *ri; 193 DPRINTFR(Config, "Unserializing '%s'\n", 194 obj->name()); 195 if(cp->sectionExists(obj->name())) 196 obj->unserialize(cp, obj->name()); 197 else 198 warn("Not unserializing '%s': no section found in checkpoint.\n", 199 obj->name()); 200 } 201} 202 203 204void 205SimObject::startupAll() 206{ 207 SimObjectList::iterator i = simObjectList.begin(); 208 SimObjectList::iterator end = simObjectList.end(); 209 210 while (i != end) { 211 (*i)->startup(); 212 ++i; 213 } 214} 215 216 217#ifdef DEBUG 218// 219// static function: flag which objects should have the debugger break 220// 221void 222SimObject::debugObjectBreak(const string &objs) 223{ 224 SimObjectList::const_iterator i = simObjectList.begin(); 225 SimObjectList::const_iterator end = simObjectList.end(); 226 227 ObjectMatch match(objs); 228 for (; i != end; ++i) { 229 SimObject *obj = *i; 230 obj->doDebugBreak = match.match(obj->name()); 231 } 232} 233 234void 235debugObjectBreak(const char *objs) 236{ 237 SimObject::debugObjectBreak(string(objs)); 238} 239#endif 240 241unsigned int 242SimObject::drain(Event *drain_event) 243{ 244 state = Drained; 245 return 0; 246} 247 248void 249SimObject::resume() 250{ 251 state = Running; 252} 253 254void 255SimObject::setMemoryMode(State new_mode) 256{ 257 panic("setMemoryMode() should only be called on systems"); 258} 259 260void 261SimObject::switchOut() 262{ 263 panic("Unimplemented!"); 264} 265 266void 267SimObject::takeOverFrom(BaseCPU *cpu) 268{ 269 panic("Unimplemented!"); 270} 271 272 273SimObject * 274SimObject::find(const char *name) 275{ 276 SimObjectList::const_iterator i = simObjectList.begin(); 277 SimObjectList::const_iterator end = simObjectList.end(); 278 279 for (; i != end; ++i) { 280 SimObject *obj = *i; 281 if (obj->name() == name) 282 return obj; 283 } 284 285 return NULL; 286} 287