process.hh revision 8229
1/* 2 * Copyright (c) 2007 The Hewlett-Packard Development Company 3 * All rights reserved. 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions are 16 * met: redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer; 18 * redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution; 21 * neither the name of the copyright holders nor the names of its 22 * contributors may be used to endorse or promote products derived from 23 * this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 * 37 * Authors: Gabe Black 38 */ 39 40#ifndef __ARCH_X86_PROCESS_HH__ 41#define __ARCH_X86_PROCESS_HH__ 42 43#include <string> 44#include <vector> 45 46#include "sim/process.hh" 47 48class SyscallDesc; 49 50namespace X86ISA 51{ 52 enum X86AuxiliaryVectorTypes { 53 M5_AT_SYSINFO = 32, 54 M5_AT_SYSINFO_EHDR = 33 55 }; 56 57 class X86LiveProcess : public LiveProcess 58 { 59 protected: 60 Addr _gdtStart; 61 Addr _gdtSize; 62 63 SyscallDesc *syscallDescs; 64 const int numSyscallDescs; 65 66 X86LiveProcess(LiveProcessParams * params, ObjectFile *objFile, 67 SyscallDesc *_syscallDescs, int _numSyscallDescs); 68 69 template<class IntType> 70 void argsInit(int pageSize, 71 std::vector<AuxVector<IntType> > extraAuxvs); 72 73 public: 74 Addr gdtStart() 75 { return _gdtStart; } 76 77 Addr gdtSize() 78 { return _gdtSize; } 79 80 SyscallDesc* getDesc(int callnum); 81 82 void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value); 83 }; 84 85 class X86_64LiveProcess : public X86LiveProcess 86 { 87 protected: 88 X86_64LiveProcess(LiveProcessParams *params, ObjectFile *objFile, 89 SyscallDesc *_syscallDescs, int _numSyscallDescs); 90 91 class VSyscallPage 92 { 93 public: 94 Addr base; 95 Addr size; 96 Addr vtimeOffset; 97 Addr vgettimeofdayOffset; 98 }; 99 VSyscallPage vsyscallPage; 100 101 public: 102 void argsInit(int intSize, int pageSize); 103 void initState(); 104 105 X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i); 106 void setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val); 107 }; 108 109 class I386LiveProcess : public X86LiveProcess 110 { 111 protected: 112 I386LiveProcess(LiveProcessParams *params, ObjectFile *objFile, 113 SyscallDesc *_syscallDescs, int _numSyscallDescs); 114 115 class VSyscallPage 116 { 117 public: 118 Addr base; 119 Addr size; 120 Addr vsyscallOffset; 121 Addr vsysexitOffset; 122 }; 123 VSyscallPage vsyscallPage; 124 125 public: 126 void argsInit(int intSize, int pageSize); 127 void initState(); 128 129 void syscall(int64_t callnum, ThreadContext *tc); 130 X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i); 131 X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i, int width); 132 void setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val); 133 }; 134} 135 136#endif // __ARCH_X86_PROCESS_HH__ 137