process.hh revision 7741:340b6f01d69b 
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/byteswap.hh"
38#include "sim/process.hh"
39
40class ObjectFile;
41class System;
42
43class SparcLiveProcess : public LiveProcess
44{
45  protected:
46
47    const Addr StackBias;
48
49    // The locations of the fill and spill handlers
50    Addr fillStart, spillStart;
51
52    SparcLiveProcess(LiveProcessParams * params,
53            ObjectFile *objFile, Addr _StackBias);
54
55    void initState();
56
57    template<class IntType>
58    void argsInit(int pageSize);
59
60  public:
61
62    // Handles traps which request services from the operating system
63    virtual void handleTrap(int trapNum, ThreadContext *tc);
64
65    Addr readFillStart() { return fillStart; }
66    Addr readSpillStart() { return spillStart; }
67
68    virtual void flushWindows(ThreadContext *tc) = 0;
69    void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value);
70};
71
72class Sparc32LiveProcess : public SparcLiveProcess
73{
74  protected:
75
76    Sparc32LiveProcess(LiveProcessParams * params, ObjectFile *objFile) :
77            SparcLiveProcess(params, objFile, 0)
78    {
79        // Set up stack. On SPARC Linux, stack goes from the top of memory
80        // downward, less the hole for the kernel address space.
81        stack_base = (Addr)0xf0000000ULL;
82
83        // Set up region for mmaps.
84        mmap_start = mmap_end = 0x70000000;
85    }
86
87    void initState();
88
89  public:
90
91    void argsInit(int intSize, int pageSize);
92
93    void flushWindows(ThreadContext *tc);
94
95    SparcISA::IntReg getSyscallArg(ThreadContext *tc, int &i);
96    void setSyscallArg(ThreadContext *tc, int i, SparcISA::IntReg val);
97};
98
99class Sparc64LiveProcess : public SparcLiveProcess
100{
101  protected:
102
103    Sparc64LiveProcess(LiveProcessParams * params, ObjectFile *objFile) :
104            SparcLiveProcess(params, objFile, 2047)
105    {
106        // Set up stack. On SPARC Linux, stack goes from the top of memory
107        // downward, less the hole for the kernel address space.
108        stack_base = (Addr)0x80000000000ULL;
109
110        // Set up region for mmaps.  Tru64 seems to start just above 0 and
111        // grow up from there.
112        mmap_start = mmap_end = 0xfffff80000000000ULL;
113    }
114
115    void initState();
116
117  public:
118
119    void argsInit(int intSize, int pageSize);
120
121    void flushWindows(ThreadContext *tc);
122
123    SparcISA::IntReg getSyscallArg(ThreadContext *tc, int &i);
124    void setSyscallArg(ThreadContext *tc, int i, SparcISA::IntReg val);
125};
126
127#endif // __SPARC_PROCESS_HH__
128