process.hh revision 11851
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#include "mem/multi_level_page_table.hh" 48 49class SyscallDesc; 50 51namespace X86ISA 52{ 53 enum X86AuxiliaryVectorTypes { 54 M5_AT_SYSINFO = 32, 55 M5_AT_SYSINFO_EHDR = 33 56 }; 57 58 class X86Process : public Process 59 { 60 protected: 61 Addr _gdtStart; 62 Addr _gdtSize; 63 64 SyscallDesc *syscallDescs; 65 const int numSyscallDescs; 66 67 X86Process(ProcessParams * params, ObjectFile *objFile, 68 SyscallDesc *_syscallDescs, int _numSyscallDescs); 69 70 template<class IntType> 71 void argsInit(int pageSize, 72 std::vector<AuxVector<IntType> > extraAuxvs); 73 74 public: 75 Addr gdtStart() 76 { return _gdtStart; } 77 78 Addr gdtSize() 79 { return _gdtSize; } 80 81 SyscallDesc* getDesc(int callnum); 82 83 void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value); 84 }; 85 86 class X86_64Process : public X86Process 87 { 88 protected: 89 X86_64Process(ProcessParams *params, ObjectFile *objFile, 90 SyscallDesc *_syscallDescs, int _numSyscallDescs); 91 92 class VSyscallPage 93 { 94 public: 95 Addr base; 96 Addr size; 97 Addr vtimeOffset; 98 Addr vgettimeofdayOffset; 99 }; 100 VSyscallPage vsyscallPage; 101 102 public: 103 void argsInit(int intSize, int pageSize); 104 void initState(); 105 106 X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i); 107 /// Explicitly import the otherwise hidden getSyscallArg 108 using Process::getSyscallArg; 109 void setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val); 110 }; 111 112 class I386Process : public X86Process 113 { 114 protected: 115 I386Process(ProcessParams *params, ObjectFile *objFile, 116 SyscallDesc *_syscallDescs, int _numSyscallDescs); 117 118 class VSyscallPage 119 { 120 public: 121 Addr base; 122 Addr size; 123 Addr vsyscallOffset; 124 Addr vsysexitOffset; 125 }; 126 VSyscallPage vsyscallPage; 127 128 public: 129 void argsInit(int intSize, int pageSize); 130 void initState(); 131 132 void syscall(int64_t callnum, ThreadContext *tc); 133 X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i); 134 X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i, int width); 135 void setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val); 136 }; 137 138 /** 139 * Declaration of architectural page table for x86. 140 * 141 * These page tables are stored in system memory and respect x86 specification. 142 */ 143 typedef MultiLevelPageTable<PageTableOps> ArchPageTable; 144 145} 146 147#endif // __ARCH_X86_PROCESS_HH__ 148