process.hh revision 5154:7e6431213487 
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
39class ObjectFile;
40class System;
41
42class 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
65struct 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
80class 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
106struct 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
121class 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__
151