/* * Copyright (c) 2004, 2005 * The Regents of The University of Michigan * All Rights Reserved * * This code is part of the M5 simulator, developed by Nathan Binkert, * Erik Hallnor, Steve Raasch, and Steve Reinhardt, with contributions * from Ron Dreslinski, Dave Greene, Lisa Hsu, Kevin Lim, Ali Saidi, * and Andrew Schultz. * * Permission is granted to use, copy, create derivative works and * redistribute this software and such derivative works for any * purpose, so long as the copyright notice above, this grant of * permission, and the disclaimer below appear in all copies made; and * so long as the name of The University of Michigan is not used in * any advertising or publicity pertaining to the use or distribution * of this software without specific, written prior authorization. * * THIS SOFTWARE IS PROVIDED AS IS, WITHOUT REPRESENTATION FROM THE * UNIVERSITY OF MICHIGAN AS TO ITS FITNESS FOR ANY PURPOSE, AND * WITHOUT WARRANTY BY THE UNIVERSITY OF MICHIGAN OF ANY KIND, EITHER * EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE. THE REGENTS OF THE UNIVERSITY OF MICHIGAN SHALL NOT BE * LIABLE FOR ANY DAMAGES, INCLUDING DIRECT, SPECIAL, INDIRECT, * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WITH RESPECT TO ANY CLAIM * ARISING OUT OF OR IN CONNECTION WITH THE USE OF THE SOFTWARE, EVEN * IF IT HAS BEEN OR IS HEREAFTER ADVISED OF THE POSSIBILITY OF SUCH * DAMAGES. */#include <iostream>#include "base/loader/symtab.hh"#include "base/output.hh"#include "encumbered/cpu/full/cpu.hh"FullCPU::PCSampleEvent::PCSampleEvent(int _interval, FullCPU *_cpu)    : Event(&mainEventQueue), cpu(_cpu), interval(_interval){}voidFullCPU::PCSampleEvent::process(){    for (int i = 0; i < cpu->number_of_threads; ++i) {	Addr pc = cpu->commitPC[i];	std::string sym;	std::string sym_str;	Addr sym_addr;	if (debugSymbolTable &&	    debugSymbolTable->findNearestSymbol(pc, sym_str, sym_addr)) {	    cpu->pcSampleHist[sym_addr]++;	}	else {	    // record PC even if we don't have a symbol to avoid	    // silently biasing the histogram	    cpu->pcSampleHist[pc]++;	}    }    // reschedule for next sample    schedule(curTick + interval);}voidFullCPU::dumpPCSampleProfile(){    std::ostream *os = simout.create(csprintf("m5prof.%s", name()));    m5::hash_map<Addr, Counter>::iterator i = pcSampleHist.begin();    for (i = pcSampleHist.begin(); i != pcSampleHist.end(); ++i) {	Addr pc = i->first;	std::string sym_str;	if (debugSymbolTable->findSymbol(pc, sym_str)	    && sym_str != "") {	    ccprintf(*os, "%s %d\n", sym_str, i->second);	} else {	    ccprintf(*os, "0x%x %d\n", pc, i->second);	}    }    delete os;}