pc_event.cc revision 8991:69fad6658160
14120Sgblack@eecs.umich.edu/* 24120Sgblack@eecs.umich.edu * Copyright (c) 2002-2005 The Regents of The University of Michigan 34120Sgblack@eecs.umich.edu * All rights reserved. 44120Sgblack@eecs.umich.edu * 54120Sgblack@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 64120Sgblack@eecs.umich.edu * modification, are permitted provided that the following conditions are 74120Sgblack@eecs.umich.edu * met: redistributions of source code must retain the above copyright 84120Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 94120Sgblack@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 104120Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 114120Sgblack@eecs.umich.edu * documentation and/or other materials provided with the distribution; 124120Sgblack@eecs.umich.edu * neither the name of the copyright holders nor the names of its 134120Sgblack@eecs.umich.edu * contributors may be used to endorse or promote products derived from 144120Sgblack@eecs.umich.edu * this software without specific prior written permission. 154120Sgblack@eecs.umich.edu * 164120Sgblack@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 174120Sgblack@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 184120Sgblack@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 194120Sgblack@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 204120Sgblack@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 214120Sgblack@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 224120Sgblack@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 234120Sgblack@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 244120Sgblack@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 254120Sgblack@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 264120Sgblack@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 274120Sgblack@eecs.umich.edu * 284120Sgblack@eecs.umich.edu * Authors: Nathan Binkert 294120Sgblack@eecs.umich.edu * Steve Reinhardt 304120Sgblack@eecs.umich.edu */ 314120Sgblack@eecs.umich.edu 324120Sgblack@eecs.umich.edu#include <algorithm> 334120Sgblack@eecs.umich.edu#include <map> 344120Sgblack@eecs.umich.edu#include <string> 354120Sgblack@eecs.umich.edu#include <utility> 364120Sgblack@eecs.umich.edu 374120Sgblack@eecs.umich.edu#include "base/debug.hh" 384120Sgblack@eecs.umich.edu#include "base/trace.hh" 394120Sgblack@eecs.umich.edu#include "cpu/base.hh" 404120Sgblack@eecs.umich.edu#include "cpu/pc_event.hh" 414120Sgblack@eecs.umich.edu#include "cpu/thread_context.hh" 424120Sgblack@eecs.umich.edu#include "debug/PCEvent.hh" 434120Sgblack@eecs.umich.edu#include "sim/core.hh" 444120Sgblack@eecs.umich.edu#include "sim/system.hh" 454120Sgblack@eecs.umich.edu 464120Sgblack@eecs.umich.eduusing namespace std; 474120Sgblack@eecs.umich.edu 484120Sgblack@eecs.umich.eduPCEventQueue::PCEventQueue() 494120Sgblack@eecs.umich.edu{} 504120Sgblack@eecs.umich.edu 514120Sgblack@eecs.umich.eduPCEventQueue::~PCEventQueue() 524120Sgblack@eecs.umich.edu{} 534120Sgblack@eecs.umich.edu 544120Sgblack@eecs.umich.edubool 554120Sgblack@eecs.umich.eduPCEventQueue::remove(PCEvent *event) 564120Sgblack@eecs.umich.edu{ 574120Sgblack@eecs.umich.edu int removed = 0; 584120Sgblack@eecs.umich.edu range_t range = equal_range(event); 594120Sgblack@eecs.umich.edu iterator i = range.first; 604120Sgblack@eecs.umich.edu while (i != range.second && 615647Sgblack@eecs.umich.edu i != pc_map.end()) { 625086Sgblack@eecs.umich.edu if (*i == event) { 635655Sgblack@eecs.umich.edu DPRINTF(PCEvent, "PC based event removed at %#x: %s\n", 645654Sgblack@eecs.umich.edu event->pc(), event->descr()); 655086Sgblack@eecs.umich.edu i = pc_map.erase(i); 665648Sgblack@eecs.umich.edu ++removed; 675651Sgblack@eecs.umich.edu } else { 685647Sgblack@eecs.umich.edu i++; 695647Sgblack@eecs.umich.edu } 705647Sgblack@eecs.umich.edu 715647Sgblack@eecs.umich.edu } 725810Sgblack@eecs.umich.edu 734120Sgblack@eecs.umich.edu return removed > 0; 745704Snate@binkert.org} 755086Sgblack@eecs.umich.edu 765651Sgblack@eecs.umich.edubool 775086Sgblack@eecs.umich.eduPCEventQueue::schedule(PCEvent *event) 785647Sgblack@eecs.umich.edu{ 795654Sgblack@eecs.umich.edu pc_map.push_back(event); 805647Sgblack@eecs.umich.edu sort(pc_map.begin(), pc_map.end(), MapCompare()); 815654Sgblack@eecs.umich.edu 825691Sgblack@eecs.umich.edu DPRINTF(PCEvent, "PC based event scheduled for %#x: %s\n", 835691Sgblack@eecs.umich.edu event->pc(), event->descr()); 845691Sgblack@eecs.umich.edu 855691Sgblack@eecs.umich.edu return true; 865691Sgblack@eecs.umich.edu} 875691Sgblack@eecs.umich.edu 885691Sgblack@eecs.umich.edubool 895691Sgblack@eecs.umich.eduPCEventQueue::doService(ThreadContext *tc) 905691Sgblack@eecs.umich.edu{ 915691Sgblack@eecs.umich.edu // This will fail to break on Alpha PALcode addresses, but that is 925691Sgblack@eecs.umich.edu // a rare use case. 935654Sgblack@eecs.umich.edu Addr pc = tc->instAddr(); 945654Sgblack@eecs.umich.edu int serviced = 0; 955654Sgblack@eecs.umich.edu range_t range = equal_range(pc); 965648Sgblack@eecs.umich.edu for (iterator i = range.first; i != range.second; ++i) { 975648Sgblack@eecs.umich.edu // Make sure that the pc wasn't changed as the side effect of 985647Sgblack@eecs.umich.edu // another event. This for example, prevents two invocations 995647Sgblack@eecs.umich.edu // of the SkipFuncEvent. Maybe we should have separate PC 1005647Sgblack@eecs.umich.edu // event queues for each processor? 1015691Sgblack@eecs.umich.edu if (pc != tc->instAddr()) 1025691Sgblack@eecs.umich.edu continue; 1035647Sgblack@eecs.umich.edu 1045691Sgblack@eecs.umich.edu DPRINTF(PCEvent, "PC based event serviced at %#x: %s\n", 1055691Sgblack@eecs.umich.edu (*i)->pc(), (*i)->descr()); 1065647Sgblack@eecs.umich.edu 1075647Sgblack@eecs.umich.edu (*i)->process(tc); 1085647Sgblack@eecs.umich.edu ++serviced; 1095647Sgblack@eecs.umich.edu } 1105691Sgblack@eecs.umich.edu 1115691Sgblack@eecs.umich.edu return serviced > 0; 1125691Sgblack@eecs.umich.edu} 1135691Sgblack@eecs.umich.edu 1145691Sgblack@eecs.umich.eduvoid 1155647Sgblack@eecs.umich.eduPCEventQueue::dump() const 1165647Sgblack@eecs.umich.edu{ 1175647Sgblack@eecs.umich.edu const_iterator i = pc_map.begin(); 1185647Sgblack@eecs.umich.edu const_iterator e = pc_map.end(); 1195647Sgblack@eecs.umich.edu 1205654Sgblack@eecs.umich.edu for (; i != e; ++i) 1215655Sgblack@eecs.umich.edu cprintf("%d: event at %#x: %s\n", curTick(), (*i)->pc(), 1225655Sgblack@eecs.umich.edu (*i)->descr()); 1235655Sgblack@eecs.umich.edu} 1245655Sgblack@eecs.umich.edu 1255691Sgblack@eecs.umich.eduPCEventQueue::range_t 1265655Sgblack@eecs.umich.eduPCEventQueue::equal_range(Addr pc) 1275691Sgblack@eecs.umich.edu{ 1285655Sgblack@eecs.umich.edu return std::equal_range(pc_map.begin(), pc_map.end(), pc, MapCompare()); 1295691Sgblack@eecs.umich.edu} 1305655Sgblack@eecs.umich.edu 1315691Sgblack@eecs.umich.eduBreakPCEvent::BreakPCEvent(PCEventQueue *q, const std::string &desc, Addr addr, 1326050Sgblack@eecs.umich.edu bool del) 1336050Sgblack@eecs.umich.edu : PCEvent(q, desc, addr), remove(del) 1346066Sgblack@eecs.umich.edu{ 1355655Sgblack@eecs.umich.edu} 1365655Sgblack@eecs.umich.edu 1375655Sgblack@eecs.umich.eduvoid 1385655Sgblack@eecs.umich.eduBreakPCEvent::process(ThreadContext *tc) 1396069Sgblack@eecs.umich.edu{ 1406069Sgblack@eecs.umich.edu StringWrap name(tc->getCpuPtr()->name() + ".break_event"); 1416069Sgblack@eecs.umich.edu DPRINTFN("break event %s triggered\n", descr()); 1425655Sgblack@eecs.umich.edu Debug::breakpoint(); 1435654Sgblack@eecs.umich.edu if (remove) 1445654Sgblack@eecs.umich.edu delete this; 1455654Sgblack@eecs.umich.edu} 1465654Sgblack@eecs.umich.edu 1475654Sgblack@eecs.umich.eduvoid 1485654Sgblack@eecs.umich.edusched_break_pc_sys(System *sys, Addr addr) 1495654Sgblack@eecs.umich.edu{ 1505654Sgblack@eecs.umich.edu new BreakPCEvent(&sys->pcEventQueue, "debug break", addr, true); 1515654Sgblack@eecs.umich.edu} 1525654Sgblack@eecs.umich.edu 1535654Sgblack@eecs.umich.eduvoid 1545654Sgblack@eecs.umich.edusched_break_pc(Addr addr) 1555654Sgblack@eecs.umich.edu{ 1565654Sgblack@eecs.umich.edu for (vector<System *>::iterator sysi = System::systemList.begin(); 1575654Sgblack@eecs.umich.edu sysi != System::systemList.end(); ++sysi) { 1585654Sgblack@eecs.umich.edu sched_break_pc_sys(*sysi, addr); 1595654Sgblack@eecs.umich.edu } 1605654Sgblack@eecs.umich.edu 1615654Sgblack@eecs.umich.edu} 1625654Sgblack@eecs.umich.edu