src/arch/sparc/nativetrace.cc

   1 /*
   2  * Copyright (c) 2006 The Regents of The University of Michigan
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  * Authors: Gabe Black
  29  */
  30
  31 #include "arch/sparc/isa_traits.hh"
  32 #include "arch/sparc/registers.hh"
  33 #include "arch/sparc/nativetrace.hh"
  34 #include "cpu/thread_context.hh"
  35 #include "params/SparcNativeTrace.hh"
  36
  37 namespace Trace {
  38
  39 static const char *intRegNames[SparcISA::NumIntArchRegs] = {
  40     //Global registers
  41     "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7",
  42     //Output registers
  43     "o0", "o1", "o2", "o3", "o4", "o5", "o6", "o7",
  44     //Local registers
  45     "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7",
  46     //Input registers
  47     "i0", "i1", "i2", "i3", "i4", "i5", "i6", "i7",
  48 };
  49
  50 void
  51 Trace::SparcNativeTrace::check(NativeTraceRecord *record)
  52 {
  53     ThreadContext *tc = record->getThread();
  54
  55     uint64_t regVal, realRegVal;
  56
  57     // Integer registers
  58
  59     // I doubt a real SPARC will describe more integer registers than this.
  60     assert(SparcISA::NumIntArchRegs == 32);
  61     const char **regName = intRegNames;
  62     for (int i = 0; i < SparcISA::NumIntArchRegs; i++) {
  63         regVal = tc->readIntReg(i);
  64         read(&realRegVal, sizeof(realRegVal));
  65         realRegVal = SparcISA::gtoh(realRegVal);
  66         checkReg(*(regName++), regVal, realRegVal);
  67     }
  68
  69     // PC
  70     read(&realRegVal, sizeof(realRegVal));
  71     realRegVal = SparcISA::gtoh(realRegVal);
  72     regVal = tc->readNextPC();
  73     checkReg("pc", regVal, realRegVal);
  74
  75     // NPC
  76     read(&realRegVal, sizeof(realRegVal));
  77     realRegVal = SparcISA::gtoh(realRegVal);
  78     regVal = tc->readNextNPC();
  79     checkReg("npc", regVal, realRegVal);
  80
  81     // CCR
  82     read(&realRegVal, sizeof(realRegVal));
  83     realRegVal = SparcISA::gtoh(realRegVal);
  84     regVal = tc->readIntReg(SparcISA::NumIntArchRegs + 2);
  85     checkReg("ccr", regVal, realRegVal);
  86 }
  87
  88 } /* namespace Trace */
  89
  90 ////////////////////////////////////////////////////////////////////////
  91 //
  92 //  ExeTracer Simulation Object
  93 //
  94 Trace::SparcNativeTrace *
  95 SparcNativeTraceParams::create()
  96 {
  97     return new Trace::SparcNativeTrace(this);
  98 };