sim/universe.cc

   1 /*
   2  * Copyright (c) 2002-2004 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
  29 #include <cstring>
  30 #include <fstream>
  31 #include <list>
  32 #include <string>
  33 #include <vector>
  34
  35 #include "base/misc.hh"
  36 #include "base/output.hh"
  37 #include "sim/builder.hh"
  38 #include "sim/host.hh"
  39 #include "sim/sim_object.hh"
  40 #include "sim/universe.hh"
  41
  42 using namespace std;
  43
  44 Tick curTick = 0;
  45 Tick ticksPerSecond;
  46 double __ticksPerMS;
  47 double __ticksPerUS;
  48 double __ticksPerNS;
  49 double __ticksPerPS;
  50
  51 bool fullSystem;
  52 ostream *outputStream;
  53 ostream *configStream;
  54
  55 // Dummy Object
  56 class Root : public SimObject
  57 {
  58   public:
  59     Root(const std::string &name) : SimObject(name) {}
  60 };
  61
  62 BEGIN_DECLARE_SIM_OBJECT_PARAMS(Root)
  63
  64     Param<bool> full_system;
  65     Param<Tick> frequency;
  66     Param<string> output_file;
  67
  68 END_DECLARE_SIM_OBJECT_PARAMS(Root)
  69
  70 BEGIN_INIT_SIM_OBJECT_PARAMS(Root)
  71
  72     INIT_PARAM(full_system, "full system simulation"),
  73     INIT_PARAM(frequency, "tick frequency"),
  74     INIT_PARAM(output_file, "file to dump simulator output to")
  75
  76 END_INIT_SIM_OBJECT_PARAMS(Root)
  77
  78 CREATE_SIM_OBJECT(Root)
  79 {
  80     static bool created = false;
  81     if (created)
  82         panic("only one root object allowed!");
  83
  84     created = true;
  85     fullSystem = full_system;
  86
  87 #ifdef FULL_SYSTEM
  88     if (!fullSystem)
  89         panic("FULL_SYSTEM compiled and configuration not full_system");
  90 #else
  91     if (fullSystem)
  92         panic("FULL_SYSTEM not compiled but configuration is full_system");
  93 #endif
  94
  95     ticksPerSecond = frequency;
  96     double freq = double(ticksPerSecond);
  97     __ticksPerMS = freq / 1.0e3;
  98     __ticksPerUS = freq / 1.0e6;
  99     __ticksPerNS = freq / 1.0e9;
 100     __ticksPerPS = freq / 1.0e12;
 101
 102     outputStream = simout.find(output_file);
 103
 104     return new Root(getInstanceName());
 105 }
 106
 107 REGISTER_SIM_OBJECT("Root", Root)
 108