pc_event.cc revision 11793:ef606668d247
14484Sbinkertn@umich.edu/* 24484Sbinkertn@umich.edu * Copyright (c) 2002-2005 The Regents of The University of Michigan 34484Sbinkertn@umich.edu * All rights reserved. 44484Sbinkertn@umich.edu * 54484Sbinkertn@umich.edu * Redistribution and use in source and binary forms, with or without 64484Sbinkertn@umich.edu * modification, are permitted provided that the following conditions are 74484Sbinkertn@umich.edu * met: redistributions of source code must retain the above copyright 84484Sbinkertn@umich.edu * notice, this list of conditions and the following disclaimer; 94484Sbinkertn@umich.edu * redistributions in binary form must reproduce the above copyright 104484Sbinkertn@umich.edu * notice, this list of conditions and the following disclaimer in the 114484Sbinkertn@umich.edu * documentation and/or other materials provided with the distribution; 124484Sbinkertn@umich.edu * neither the name of the copyright holders nor the names of its 134484Sbinkertn@umich.edu * contributors may be used to endorse or promote products derived from 144484Sbinkertn@umich.edu * this software without specific prior written permission. 154484Sbinkertn@umich.edu * 164484Sbinkertn@umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 174484Sbinkertn@umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 184484Sbinkertn@umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 194484Sbinkertn@umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 204484Sbinkertn@umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 214484Sbinkertn@umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 224484Sbinkertn@umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 234484Sbinkertn@umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 244484Sbinkertn@umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 254484Sbinkertn@umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 264484Sbinkertn@umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 274484Sbinkertn@umich.edu * 284484Sbinkertn@umich.edu * Authors: Nathan Binkert 294484Sbinkertn@umich.edu * Steve Reinhardt 304494Ssaidi@eecs.umich.edu */ 314494Ssaidi@eecs.umich.edu 324494Ssaidi@eecs.umich.edu#include "cpu/pc_event.hh" 334484Sbinkertn@umich.edu 344484Sbinkertn@umich.edu#include <algorithm> 354484Sbinkertn@umich.edu#include <string> 364484Sbinkertn@umich.edu#include <utility> 374484Sbinkertn@umich.edu 384484Sbinkertn@umich.edu#include "base/debug.hh" 394484Sbinkertn@umich.edu#include "base/trace.hh" 404484Sbinkertn@umich.edu#include "cpu/base.hh" 414484Sbinkertn@umich.edu#include "cpu/thread_context.hh" 424484Sbinkertn@umich.edu#include "debug/PCEvent.hh" 434484Sbinkertn@umich.edu#include "sim/core.hh" 444484Sbinkertn@umich.edu#include "sim/system.hh" 454484Sbinkertn@umich.edu 464484Sbinkertn@umich.eduusing namespace std; 474484Sbinkertn@umich.edu 484484Sbinkertn@umich.eduPCEventQueue::PCEventQueue() 494484Sbinkertn@umich.edu{} 504484Sbinkertn@umich.edu 514484Sbinkertn@umich.eduPCEventQueue::~PCEventQueue() 524484Sbinkertn@umich.edu{} 534484Sbinkertn@umich.edu 544484Sbinkertn@umich.edubool 554484Sbinkertn@umich.eduPCEventQueue::remove(PCEvent *event) 564484Sbinkertn@umich.edu{ 574484Sbinkertn@umich.edu int removed = 0; 584484Sbinkertn@umich.edu range_t range = equal_range(event); 594484Sbinkertn@umich.edu iterator i = range.first; 604484Sbinkertn@umich.edu while (i != range.second && 614484Sbinkertn@umich.edu i != pc_map.end()) { 624484Sbinkertn@umich.edu if (*i == event) { 634484Sbinkertn@umich.edu DPRINTF(PCEvent, "PC based event removed at %#x: %s\n", 644484Sbinkertn@umich.edu event->pc(), event->descr()); 654484Sbinkertn@umich.edu i = pc_map.erase(i); 664484Sbinkertn@umich.edu ++removed; 674484Sbinkertn@umich.edu } else { 684484Sbinkertn@umich.edu i++; 694484Sbinkertn@umich.edu } 704484Sbinkertn@umich.edu 714484Sbinkertn@umich.edu } 724484Sbinkertn@umich.edu 734484Sbinkertn@umich.edu return removed > 0; 744484Sbinkertn@umich.edu} 754484Sbinkertn@umich.edu 764484Sbinkertn@umich.edubool 774484Sbinkertn@umich.eduPCEventQueue::schedule(PCEvent *event) 784484Sbinkertn@umich.edu{ 794484Sbinkertn@umich.edu pc_map.push_back(event); 804484Sbinkertn@umich.edu sort(pc_map.begin(), pc_map.end(), MapCompare()); 814484Sbinkertn@umich.edu 824484Sbinkertn@umich.edu DPRINTF(PCEvent, "PC based event scheduled for %#x: %s\n", 834484Sbinkertn@umich.edu event->pc(), event->descr()); 844484Sbinkertn@umich.edu 854484Sbinkertn@umich.edu return true; 864484Sbinkertn@umich.edu} 874484Sbinkertn@umich.edu 884484Sbinkertn@umich.edubool 894484Sbinkertn@umich.eduPCEventQueue::doService(ThreadContext *tc) 904484Sbinkertn@umich.edu{ 914484Sbinkertn@umich.edu // This will fail to break on Alpha PALcode addresses, but that is 924484Sbinkertn@umich.edu // a rare use case. 934484Sbinkertn@umich.edu Addr pc = tc->instAddr(); 944484Sbinkertn@umich.edu int serviced = 0; 954484Sbinkertn@umich.edu range_t range = equal_range(pc); 964484Sbinkertn@umich.edu for (iterator i = range.first; i != range.second; ++i) { 974484Sbinkertn@umich.edu // Make sure that the pc wasn't changed as the side effect of 984484Sbinkertn@umich.edu // another event. This for example, prevents two invocations 994484Sbinkertn@umich.edu // of the SkipFuncEvent. Maybe we should have separate PC 1004484Sbinkertn@umich.edu // event queues for each processor? 1014484Sbinkertn@umich.edu if (pc != tc->instAddr()) 1024484Sbinkertn@umich.edu continue; 1034484Sbinkertn@umich.edu 1044484Sbinkertn@umich.edu DPRINTF(PCEvent, "PC based event serviced at %#x: %s\n", 1054484Sbinkertn@umich.edu (*i)->pc(), (*i)->descr()); 1064484Sbinkertn@umich.edu 1074484Sbinkertn@umich.edu (*i)->process(tc); 1084484Sbinkertn@umich.edu ++serviced; 1094484Sbinkertn@umich.edu } 1104484Sbinkertn@umich.edu 1114484Sbinkertn@umich.edu return serviced > 0; 1124484Sbinkertn@umich.edu} 1134484Sbinkertn@umich.edu 1144484Sbinkertn@umich.eduvoid 1154484Sbinkertn@umich.eduPCEventQueue::dump() const 1164484Sbinkertn@umich.edu{ 1174484Sbinkertn@umich.edu const_iterator i = pc_map.begin(); 1184484Sbinkertn@umich.edu const_iterator e = pc_map.end(); 1194484Sbinkertn@umich.edu 1204484Sbinkertn@umich.edu for (; i != e; ++i) 1214484Sbinkertn@umich.edu cprintf("%d: event at %#x: %s\n", curTick(), (*i)->pc(), 1224484Sbinkertn@umich.edu (*i)->descr()); 1234484Sbinkertn@umich.edu} 1244484Sbinkertn@umich.edu 1254484Sbinkertn@umich.eduPCEventQueue::range_t 1264484Sbinkertn@umich.eduPCEventQueue::equal_range(Addr pc) 1274484Sbinkertn@umich.edu{ 1284484Sbinkertn@umich.edu return std::equal_range(pc_map.begin(), pc_map.end(), pc, MapCompare()); 1294484Sbinkertn@umich.edu} 1304484Sbinkertn@umich.edu 1314484Sbinkertn@umich.eduBreakPCEvent::BreakPCEvent(PCEventQueue *q, const std::string &desc, Addr addr, 1324484Sbinkertn@umich.edu bool del) 1334484Sbinkertn@umich.edu : PCEvent(q, desc, addr), remove(del) 1344484Sbinkertn@umich.edu{ 1354484Sbinkertn@umich.edu} 1364484Sbinkertn@umich.edu 1374484Sbinkertn@umich.eduvoid 1384484Sbinkertn@umich.eduBreakPCEvent::process(ThreadContext *tc) 1394484Sbinkertn@umich.edu{ 1404484Sbinkertn@umich.edu StringWrap name(tc->getCpuPtr()->name() + ".break_event"); 1414484Sbinkertn@umich.edu DPRINTFN("break event %s triggered\n", descr()); 1424484Sbinkertn@umich.edu Debug::breakpoint(); 1434484Sbinkertn@umich.edu if (remove) 1444484Sbinkertn@umich.edu delete this; 1454484Sbinkertn@umich.edu} 1464484Sbinkertn@umich.edu 1474484Sbinkertn@umich.eduvoid 1484484Sbinkertn@umich.edusched_break_pc_sys(System *sys, Addr addr) 1494484Sbinkertn@umich.edu{ 1504484Sbinkertn@umich.edu new BreakPCEvent(&sys->pcEventQueue, "debug break", addr, true); 1514484Sbinkertn@umich.edu} 1524484Sbinkertn@umich.edu 1534484Sbinkertn@umich.eduvoid 1544484Sbinkertn@umich.edusched_break_pc(Addr addr) 1554484Sbinkertn@umich.edu{ 1564484Sbinkertn@umich.edu for (vector<System *>::iterator sysi = System::systemList.begin(); 1574484Sbinkertn@umich.edu sysi != System::systemList.end(); ++sysi) { 1584484Sbinkertn@umich.edu sched_break_pc_sys(*sysi, addr); 1594484Sbinkertn@umich.edu } 1604484Sbinkertn@umich.edu 1614484Sbinkertn@umich.edu} 1624484Sbinkertn@umich.edu 1634484Sbinkertn@umich.eduPanicPCEvent::PanicPCEvent(PCEventQueue *q, const std::string &desc, Addr pc) 1644484Sbinkertn@umich.edu : PCEvent(q, desc, pc) 1654484Sbinkertn@umich.edu{ 1664484Sbinkertn@umich.edu} 1674484Sbinkertn@umich.edu 1684484Sbinkertn@umich.eduvoid 1694484Sbinkertn@umich.eduPanicPCEvent::process(ThreadContext *tc) 1704484Sbinkertn@umich.edu{ 1714484Sbinkertn@umich.edu StringWrap name(tc->getCpuPtr()->name() + ".panic_event"); 1724484Sbinkertn@umich.edu panic(descr()); 1734484Sbinkertn@umich.edu} 1744484Sbinkertn@umich.edu