src/arch/sparc/process.hh

   1 /*
   2  * Copyright (c) 2003-2004 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  * Authors: Gabe Black
  29  *          Ali Saidi
  30  */
  31
  32 #ifndef __SPARC_PROCESS_HH__
  33 #define __SPARC_PROCESS_HH__
  34
  35 #include <string>
  36 #include <vector>
  37 #include "sim/process.hh"
  38
  39 class ObjectFile;
  40 class System;
  41
  42 class SparcLiveProcess : public LiveProcess
  43 {
  44   protected:
  45
  46     //The locations of the fill and spill handlers
  47     Addr fillStart, spillStart;
  48
  49     SparcLiveProcess(LiveProcessParams * params, ObjectFile *objFile);
  50
  51   public:
  52
  53     //Handles traps which request services from the operating system
  54     virtual void handleTrap(int trapNum, ThreadContext *tc);
  55
  56     Addr readFillStart()
  57     { return fillStart; }
  58
  59     Addr readSpillStart()
  60     { return spillStart; }
  61
  62     virtual void flushWindows(ThreadContext *tc) = 0;
  63 };
  64
  65 struct M5_32_auxv_t
  66 {
  67     int32_t a_type;
  68     union {
  69         int32_t a_val;
  70         int32_t a_ptr;
  71         int32_t a_fcn;
  72     };
  73
  74     M5_32_auxv_t()
  75     {}
  76
  77     M5_32_auxv_t(int32_t type, int32_t val);
  78 };
  79
  80 class Sparc32LiveProcess : public SparcLiveProcess
  81 {
  82   protected:
  83
  84     std::vector<M5_32_auxv_t> auxv;
  85
  86     Sparc32LiveProcess(LiveProcessParams * params, ObjectFile *objFile) :
  87             SparcLiveProcess(params, objFile)
  88     {
  89         // Set up stack. On SPARC Linux, stack goes from the top of memory
  90         // downward, less the hole for the kernel address space.
  91         stack_base = (Addr)0xf0000000ULL;
  92
  93         // Set up region for mmaps.
  94         mmap_start = mmap_end = 0x70000000;
  95     }
  96
  97     void startup();
  98
  99   public:
 100
 101     void argsInit(int intSize, int pageSize);
 102
 103     void flushWindows(ThreadContext *tc);
 104 };
 105
 106 struct M5_64_auxv_t
 107 {
 108     int64_t a_type;
 109     union {
 110         int64_t a_val;
 111         int64_t a_ptr;
 112         int64_t a_fcn;
 113     };
 114
 115     M5_64_auxv_t()
 116     {}
 117
 118     M5_64_auxv_t(int64_t type, int64_t val);
 119 };
 120
 121 class Sparc64LiveProcess : public SparcLiveProcess
 122 {
 123   protected:
 124
 125     static const Addr StackBias = 2047;
 126
 127     std::vector<M5_64_auxv_t> auxv;
 128
 129     Sparc64LiveProcess(LiveProcessParams * params, ObjectFile *objFile) :
 130             SparcLiveProcess(params, objFile)
 131     {
 132         // Set up stack. On SPARC Linux, stack goes from the top of memory
 133         // downward, less the hole for the kernel address space.
 134         stack_base = (Addr)0x80000000000ULL;
 135
 136         // Set up region for mmaps.  Tru64 seems to start just above 0 and
 137         // grow up from there.
 138         mmap_start = mmap_end = 0xfffff80000000000ULL;
 139     }
 140
 141     void startup();
 142
 143   public:
 144
 145     void argsInit(int intSize, int pageSize);
 146
 147     void flushWindows(ThreadContext *tc);
 148 };
 149
 150 #endif // __SPARC_PROCESS_HH__