process.hh revision 7532
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#include "sim/process.hh" 46 47class SyscallDesc; 48 49namespace X86ISA 50{ 51 enum X86AuxiliaryVectorTypes { 52 M5_AT_SYSINFO = 32, 53 M5_AT_SYSINFO_EHDR = 33 54 }; 55 56 class X86LiveProcess : public LiveProcess 57 { 58 protected: 59 Addr _gdtStart; 60 Addr _gdtSize; 61 62 SyscallDesc *syscallDescs; 63 const int numSyscallDescs; 64 65 X86LiveProcess(LiveProcessParams * params, ObjectFile *objFile, 66 SyscallDesc *_syscallDescs, int _numSyscallDescs); 67 68 template<class IntType> 69 void argsInit(int pageSize, 70 std::vector<AuxVector<IntType> > extraAuxvs); 71 72 public: 73 Addr gdtStart() 74 { return _gdtStart; } 75 76 Addr gdtSize() 77 { return _gdtSize; } 78 79 SyscallDesc* getDesc(int callnum); 80 81 void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value); 82 }; 83 84 class X86_64LiveProcess : public X86LiveProcess 85 { 86 protected: 87 X86_64LiveProcess(LiveProcessParams *params, ObjectFile *objFile, 88 SyscallDesc *_syscallDescs, int _numSyscallDescs); 89 90 class VSyscallPage 91 { 92 public: 93 Addr base; 94 Addr size; 95 Addr vtimeOffset; 96 Addr vgettimeofdayOffset; 97 }; 98 VSyscallPage vsyscallPage; 99 100 public: 101 void argsInit(int intSize, int pageSize); 102 void initState(); 103 104 X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i); 105 void setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val); 106 }; 107 108 class I386LiveProcess : public X86LiveProcess 109 { 110 protected: 111 I386LiveProcess(LiveProcessParams *params, ObjectFile *objFile, 112 SyscallDesc *_syscallDescs, int _numSyscallDescs); 113 114 class VSyscallPage 115 { 116 public: 117 Addr base; 118 Addr size; 119 Addr vsyscallOffset; 120 Addr vsysexitOffset; 121 }; 122 VSyscallPage vsyscallPage; 123 124 public: 125 void argsInit(int intSize, int pageSize); 126 void initState(); 127 128 void syscall(int64_t callnum, ThreadContext *tc); 129 X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i); 130 X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i, int width); 131 void setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val); 132 }; 133} 134 135#endif // __ARCH_X86_PROCESS_HH__ 136