xref: /gem5/src/cpu/thread_state.cc

/*
 * Copyright (c) 2006 The Regents of The University of Michigan
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer;
 * redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution;
 * neither the name of the copyright holders nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Authors: Kevin Lim
 */

#include "base/output.hh"
#include "cpu/profile.hh"
#include "cpu/thread_state.hh"

#if FULL_SYSTEM
ThreadState::ThreadState(int _cpuId, int _tid)
    : cpuId(_cpuId), tid(_tid), lastActivate(0), lastSuspend(0),
      profile(NULL), profileNode(NULL), profilePC(0), quiesceEvent(NULL),
      funcExeInst(0), storeCondFailures(0)
#else
ThreadState::ThreadState(int _cpuId, int _tid, MemObject *mem,
                         Process *_process, short _asid)
    : cpuId(_cpuId), tid(_tid), lastActivate(0), lastSuspend(0),
      process(_process), asid(_asid),
      funcExeInst(0), storeCondFailures(0)
#endif
{
#if !FULL_SYSTEM
        /* Use this port to for syscall emulation writes to memory. */
        Port *mem_port;
        port = new TranslatingPort(csprintf("%d-funcport",
                                            tid),
                                   process->pTable, false);
        mem_port = mem->getPort("functional");
        mem_port->setPeer(port);
        port->setPeer(mem_port);
#endif
}

#if FULL_SYSTEM

void
ThreadState::profileClear()
{
    if (profile)
        profile->clear();
}

void
ThreadState::profileSample()
{
    if (profile)
        profile->sample(profileNode, profilePC);
}

#endif