nativetrace.cc

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/*
 * Copyright (c) 2006 The Regents of The University of Michigan
 * All rights reserved.
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 * 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
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#include "arch/sparc/nativetrace.hh"
 
#include "arch/sparc/isa_traits.hh"
#include "arch/sparc/registers.hh"
#include "cpu/thread_context.hh"
#include "params/SparcNativeTrace.hh"
#include "sim/byteswap.hh"
 
namespace Trace {
 
static const char *intRegNames[SparcISA::NumIntArchRegs] = {
    // Global registers
    "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7",
    // Output registers
    "o0", "o1", "o2", "o3", "o4", "o5", "o6", "o7",
    // Local registers
    "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7",
    // Input registers
    "i0", "i1", "i2", "i3", "i4", "i5", "i6", "i7",
};
 
void
Trace::SparcNativeTrace::check(NativeTraceRecord *record)
{
    ThreadContext *tc = record->getThread();
 
    uint64_t regVal, realRegVal;
 
    // Integer registers
 
    // I doubt a real SPARC will describe more integer registers than this.
    assert(SparcISA::NumIntArchRegs == 32);
    const char **regName = intRegNames;
    for (int i = 0; i < SparcISA::NumIntArchRegs; i++) {
        regVal = tc->readIntReg(i);
        read(&realRegVal, sizeof(realRegVal));
        realRegVal = betoh(realRegVal);
        checkReg(*(regName++), regVal, realRegVal);
    }
 
    SparcISA::PCState pc = tc->pcState();
    // PC
    read(&realRegVal, sizeof(realRegVal));
    realRegVal = betoh(realRegVal);
    regVal = pc.npc();
    checkReg("pc", regVal, realRegVal);
 
    // NPC
    read(&realRegVal, sizeof(realRegVal));
    realRegVal = betoh(realRegVal);
    pc.nnpc();
    checkReg("npc", regVal, realRegVal);
 
    // CCR
    read(&realRegVal, sizeof(realRegVal));
    realRegVal = betoh(realRegVal);
    regVal = tc->readIntReg(SparcISA::INTREG_CCR);
    checkReg("ccr", regVal, realRegVal);
}
 
} // namespace Trace
 
//
//  ExeTracer Simulation Object
//
Trace::SparcNativeTrace *
SparcNativeTraceParams::create()
{
    return new Trace::SparcNativeTrace(this);
};