src/cpu/exetrace.hh

   1 /*
   2  * Copyright (c) 2001-2005 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: Steve Reinhardt
  29  *          Nathan Binkert
  30  */
  31
  32 #ifndef __EXETRACE_HH__
  33 #define __EXETRACE_HH__
  34
  35 #include "base/trace.hh"
  36 #include "cpu/static_inst.hh"
  37 #include "sim/host.hh"
  38 #include "sim/insttracer.hh"
  39 #include "params/ExeTracer.hh"
  40
  41 class ThreadContext;
  42
  43
  44 namespace Trace {
  45
  46 class ExeTracerRecord : public InstRecord
  47 {
  48   public:
  49     ExeTracerRecord(Tick _when, ThreadContext *_thread,
  50                const StaticInstPtr &_staticInst, Addr _pc, bool spec)
  51         : InstRecord(_when, _thread, _staticInst, _pc, spec)
  52     {
  53     }
  54
  55     void dump();
  56 };
  57
  58 class ExeTracer : public InstTracer
  59 {
  60   public:
  61     typedef ExeTracerParams Params;
  62     ExeTracer(const Params *params) : InstTracer(params)
  63     {}
  64
  65     InstRecord *
  66     getInstRecord(Tick when, ThreadContext *tc,
  67             const StaticInstPtr staticInst, Addr pc)
  68     {
  69         if (!IsOn(ExecEnable))
  70             return NULL;
  71
  72         if (!Trace::enabled)
  73             return NULL;
  74
  75         if (!IsOn(ExecSpeculative) && tc->misspeculating())
  76             return NULL;
  77
  78         return new ExeTracerRecord(when, tc,
  79                 staticInst, pc, tc->misspeculating());
  80     }
  81 };
  82
  83 /* namespace Trace */ }
  84
  85 #endif // __EXETRACE_HH__