process.hh revision 7073 
1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * Redistribution and use of this software in source and binary forms,
6 * with or without modification, are permitted provided that the
7 * following conditions are met:
8 *
9 * The software must be used only for Non-Commercial Use which means any
10 * use which is NOT directed to receiving any direct monetary
11 * compensation for, or commercial advantage from such use.  Illustrative
12 * examples of non-commercial use are academic research, personal study,
13 * teaching, education and corporate research & development.
14 * Illustrative examples of commercial use are distributing products for
15 * commercial advantage and providing services using the software for
16 * commercial advantage.
17 *
18 * If you wish to use this software or functionality therein that may be
19 * covered by patents for commercial use, please contact:
20 *     Director of Intellectual Property Licensing
21 *     Office of Strategy and Technology
22 *     Hewlett-Packard Company
23 *     1501 Page Mill Road
24 *     Palo Alto, California  94304
25 *
26 * Redistributions of source code must retain the above copyright notice,
27 * this list of conditions and the following disclaimer.  Redistributions
28 * in binary form must reproduce the above copyright notice, this list of
29 * conditions and the following disclaimer in the documentation and/or
30 * other materials provided with the distribution.  Neither the name of
31 * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
32 * contributors may be used to endorse or promote products derived from
33 * this software without specific prior written permission.  No right of
34 * sublicense is granted herewith.  Derivatives of the software and
35 * output created using the software may be prepared, but only for
36 * Non-Commercial Uses.  Derivatives of the software may be shared with
37 * others provided: (i) the others agree to abide by the list of
38 * conditions herein which includes the Non-Commercial Use restrictions;
39 * and (ii) such Derivatives of the software include the above copyright
40 * notice to acknowledge the contribution from this software where
41 * applicable, this list of conditions and the disclaimer below.
42 *
43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
44 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
45 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
46 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
47 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
49 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54 *
55 * Authors: Gabe Black
56 */
57
58#ifndef __ARCH_X86_PROCESS_HH__
59#define __ARCH_X86_PROCESS_HH__
60
61#include <string>
62#include <vector>
63#include "sim/process.hh"
64
65class SyscallDesc;
66
67namespace X86ISA
68{
69    enum X86AuxiliaryVectorTypes {
70        M5_AT_SYSINFO = 32,
71        M5_AT_SYSINFO_EHDR = 33
72    };
73
74    class X86LiveProcess : public LiveProcess
75    {
76      protected:
77        Addr _gdtStart;
78        Addr _gdtSize;
79
80        SyscallDesc *syscallDescs;
81        const int numSyscallDescs;
82
83        X86LiveProcess(LiveProcessParams * params, ObjectFile *objFile,
84                SyscallDesc *_syscallDescs, int _numSyscallDescs);
85
86        template<class IntType>
87        void argsInit(int pageSize,
88                std::vector<AuxVector<IntType> > extraAuxvs);
89
90      public:
91        Addr gdtStart()
92        { return _gdtStart; }
93
94        Addr gdtSize()
95        { return _gdtSize; }
96
97        SyscallDesc* getDesc(int callnum);
98
99        void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value);
100    };
101
102    class X86_64LiveProcess : public X86LiveProcess
103    {
104      protected:
105        X86_64LiveProcess(LiveProcessParams *params, ObjectFile *objFile,
106                SyscallDesc *_syscallDescs, int _numSyscallDescs);
107
108        class VSyscallPage
109        {
110          public:
111            Addr base;
112            Addr size;
113            Addr vtimeOffset;
114            Addr vgettimeofdayOffset;
115        };
116        VSyscallPage vsyscallPage;
117
118      public:
119        void argsInit(int intSize, int pageSize);
120        void startup();
121
122        X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i);
123        void setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val);
124    };
125
126    class I386LiveProcess : public X86LiveProcess
127    {
128      protected:
129        I386LiveProcess(LiveProcessParams *params, ObjectFile *objFile,
130                SyscallDesc *_syscallDescs, int _numSyscallDescs);
131
132        class VSyscallPage
133        {
134          public:
135            Addr base;
136            Addr size;
137            Addr vsyscallOffset;
138            Addr vsysexitOffset;
139        };
140        VSyscallPage vsyscallPage;
141
142      public:
143        void argsInit(int intSize, int pageSize);
144        void startup();
145
146        void syscall(int64_t callnum, ThreadContext *tc);
147        X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i);
148        X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i, int width);
149        void setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val);
150    };
151}
152
153#endif // __ARCH_X86_PROCESS_HH__
154