process.hh revision 10299 
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
38#include "sim/byteswap.hh"
39#include "sim/process.hh"
40
41class ObjectFile;
42class System;
43
44class SparcLiveProcess : public LiveProcess
45{
46  protected:
47
48    const Addr StackBias;
49
50    // The locations of the fill and spill handlers
51    Addr fillStart, spillStart;
52
53    SparcLiveProcess(LiveProcessParams * params,
54            ObjectFile *objFile, Addr _StackBias);
55
56    void initState();
57
58    template<class IntType>
59    void argsInit(int pageSize);
60
61  public:
62
63    // Handles traps which request services from the operating system
64    virtual void handleTrap(int trapNum, ThreadContext *tc);
65
66    Addr readFillStart() { return fillStart; }
67    Addr readSpillStart() { return spillStart; }
68
69    virtual void flushWindows(ThreadContext *tc) = 0;
70    void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value);
71};
72
73class Sparc32LiveProcess : public SparcLiveProcess
74{
75  protected:
76
77    Sparc32LiveProcess(LiveProcessParams * params, ObjectFile *objFile) :
78            SparcLiveProcess(params, objFile, 0)
79    {
80        // Set up stack. On SPARC Linux, stack goes from the top of memory
81        // downward, less the hole for the kernel address space.
82        stack_base = (Addr)0xf0000000ULL;
83
84        // Set up region for mmaps.
85        mmap_start = mmap_end = 0x70000000;
86    }
87
88    void initState();
89
90  public:
91
92    void argsInit(int intSize, int pageSize);
93
94    void flushWindows(ThreadContext *tc);
95
96    SparcISA::IntReg getSyscallArg(ThreadContext *tc, int &i);
97    /// Explicitly import the otherwise hidden getSyscallArg
98    using LiveProcess::getSyscallArg;
99
100    void setSyscallArg(ThreadContext *tc, int i, SparcISA::IntReg val);
101};
102
103class Sparc64LiveProcess : public SparcLiveProcess
104{
105  protected:
106
107    Sparc64LiveProcess(LiveProcessParams * params, ObjectFile *objFile) :
108            SparcLiveProcess(params, objFile, 2047)
109    {
110        // Set up stack. On SPARC Linux, stack goes from the top of memory
111        // downward, less the hole for the kernel address space.
112        stack_base = (Addr)0x80000000000ULL;
113
114        // Set up region for mmaps.  Tru64 seems to start just above 0 and
115        // grow up from there.
116        mmap_start = mmap_end = 0xfffff80000000000ULL;
117    }
118
119    void initState();
120
121  public:
122
123    void argsInit(int intSize, int pageSize);
124
125    void flushWindows(ThreadContext *tc);
126
127    SparcISA::IntReg getSyscallArg(ThreadContext *tc, int &i);
128    /// Explicitly import the otherwise hidden getSyscallArg
129    using LiveProcess::getSyscallArg;
130
131    void setSyscallArg(ThreadContext *tc, int i, SparcISA::IntReg val);
132};
133
134/* No architectural page table defined for this ISA */
135typedef NoArchPageTable ArchPageTable;
136
137#endif // __SPARC_PROCESS_HH__
138