sim/system.hh

   1 /*
   2  * Copyright (c) 2003 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 #ifndef __SYSTEM_HH__
  30 #define __SYSTEM_HH__
  31
  32 #include <string>
  33 #include <vector>
  34
  35 #include "sim/sim_object.hh"
  36 #include "cpu/pc_event.hh"
  37 #include "base/loader/symtab.hh"
  38
  39 #ifdef FS_MEASURE
  40 #include "base/statistics.hh"
  41 #include "sim/sw_context.hh"
  42 #endif
  43
  44 class MemoryController;
  45 class PhysicalMemory;
  46 class RemoteGDB;
  47 class GDBListener;
  48
  49 class ExecContext;
  50
  51 class System : public SimObject
  52 {
  53 #ifdef FS_MEASURE
  54   protected:
  55     std::map<const std::string, Statistics::MainBin *> fnBins;
  56     std::map<const Addr, SWContext *> swCtxMap;
  57 #endif //FS_MEASURE
  58
  59   public:
  60     const uint64_t init_param;
  61     MemoryController *memCtrl;
  62     PhysicalMemory *physmem;
  63     bool bin;
  64
  65     PCEventQueue pcEventQueue;
  66
  67     std::vector<ExecContext *> execContexts;
  68
  69     virtual int registerExecContext(ExecContext *xc);
  70     virtual void replaceExecContext(int xcIndex, ExecContext *xc);
  71
  72 #ifdef FS_MEASURE
  73     Statistics::Scalar<Counter, Statistics::MainBin> fnCalls;
  74     Statistics::MainBin *nonPath;
  75 #endif //FS_MEASURE
  76
  77   public:
  78     System(const std::string _name, const uint64_t _init_param,
  79            MemoryController *, PhysicalMemory *, const bool);
  80     ~System();
  81
  82     virtual Addr getKernelStart() const = 0;
  83     virtual Addr getKernelEnd() const = 0;
  84     virtual Addr getKernelEntry() const = 0;
  85     virtual bool breakpoint() = 0;
  86
  87 #ifdef FS_MEASURE
  88     Statistics::MainBin * getBin(const std::string &name);
  89     virtual bool findCaller(std::string, std::string) const = 0;
  90
  91     SWContext *findContext(Addr pcb);
  92     bool addContext(Addr pcb, SWContext *ctx) {
  93         return (swCtxMap.insert(make_pair(pcb, ctx))).second;
  94     }
  95     void remContext(Addr pcb) {
  96         swCtxMap.erase(pcb);
  97         return;
  98     }
  99
 100     virtual void dumpState(ExecContext *xc) const = 0;
 101 #endif //FS_MEASURE
 102
 103   public:
 104     ////////////////////////////////////////////
 105     //
 106     // STATIC GLOBAL SYSTEM LIST
 107     //
 108     ////////////////////////////////////////////
 109
 110     static std::vector<System *> systemList;
 111     static int numSystemsRunning;
 112
 113     static void printSystems();
 114 };
 115
 116 #endif // __SYSTEM_HH__