process.hh revision 11800 
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 "mem/page_table.hh"
39#include "sim/byteswap.hh"
40#include "sim/process.hh"
41
42class ObjectFile;
43class System;
44
45class SparcLiveProcess : public LiveProcess
46{
47  protected:
48
49    const Addr StackBias;
50
51    // The locations of the fill and spill handlers
52    Addr fillStart, spillStart;
53
54    SparcLiveProcess(LiveProcessParams * params,
55            ObjectFile *objFile, Addr _StackBias);
56
57    void initState();
58
59    template<class IntType>
60    void argsInit(int pageSize);
61
62  public:
63
64    // Handles traps which request services from the operating system
65    virtual void handleTrap(int trapNum, ThreadContext *tc);
66
67    Addr readFillStart() { return fillStart; }
68    Addr readSpillStart() { return spillStart; }
69
70    virtual void flushWindows(ThreadContext *tc) = 0;
71    void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value);
72};
73
74class Sparc32LiveProcess : public SparcLiveProcess
75{
76  protected:
77
78    Sparc32LiveProcess(LiveProcessParams * params, ObjectFile *objFile) :
79            SparcLiveProcess(params, objFile, 0)
80    {
81        // Set up stack. On SPARC Linux, stack goes from the top of memory
82        // downward, less the hole for the kernel address space.
83        stack_base = (Addr)0xf0000000ULL;
84
85        // Set up region for mmaps.
86        mmap_end = 0x70000000;
87    }
88
89    void initState();
90
91  public:
92
93    void argsInit(int intSize, int pageSize);
94
95    void flushWindows(ThreadContext *tc);
96
97    SparcISA::IntReg getSyscallArg(ThreadContext *tc, int &i);
98    /// Explicitly import the otherwise hidden getSyscallArg
99    using LiveProcess::getSyscallArg;
100
101    void setSyscallArg(ThreadContext *tc, int i, SparcISA::IntReg val);
102};
103
104class Sparc64LiveProcess : public SparcLiveProcess
105{
106  protected:
107
108    Sparc64LiveProcess(LiveProcessParams * params, ObjectFile *objFile) :
109            SparcLiveProcess(params, objFile, 2047)
110    {
111        // Set up stack. On SPARC Linux, stack goes from the top of memory
112        // downward, less the hole for the kernel address space.
113        stack_base = (Addr)0x80000000000ULL;
114
115        // Set up region for mmaps.
116        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