src/arch/x86/process.hh

   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
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   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
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  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
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  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
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  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
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  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
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  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
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  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
  65 class SyscallDesc;
  66
  67 namespace 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__