1/* 2 * Copyright (c) 2003-2005 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; --- 18 unchanged lines hidden (view full) --- 27 * 28 * Authors: Korey Sewell 29 */ 30 31#include "arch/mips/faults.hh" 32#include "cpu/thread_context.hh" 33#include "cpu/base.hh" 34#include "base/trace.hh" |
35#if !FULL_SYSTEM 36#include "sim/process.hh" 37#include "mem/page_table.hh" 38#endif |
39 40namespace MipsISA 41{ 42 43FaultName MachineCheckFault::_name = "Machine Check"; 44FaultVect MachineCheckFault::_vect = 0x0401; 45FaultStat MachineCheckFault::_count; 46 --- 4 unchanged lines hidden (view full) --- 51FaultName ResetFault::_name = "reset"; 52FaultVect ResetFault::_vect = 0x0001; 53FaultStat ResetFault::_count; 54 55FaultName ArithmeticFault::_name = "arith"; 56FaultVect ArithmeticFault::_vect = 0x0501; 57FaultStat ArithmeticFault::_count; 58 |
59#if !FULL_SYSTEM 60FaultName PageTableFault::_name = "page_table_fault"; 61FaultVect PageTableFault::_vect = 0x0000; 62FaultStat PageTableFault::_count; 63#endif 64 |
65FaultName InterruptFault::_name = "interrupt"; 66FaultVect InterruptFault::_vect = 0x0101; 67FaultStat InterruptFault::_count; 68 69FaultName NDtbMissFault::_name = "dtb_miss_single"; 70FaultVect NDtbMissFault::_vect = 0x0201; 71FaultStat NDtbMissFault::_count; 72 --- 59 unchanged lines hidden (view full) --- 132} 133 134void ArithmeticFault::invoke(ThreadContext * tc) 135{ 136 FaultBase::invoke(tc); 137 panic("Arithmetic traps are unimplemented!"); 138} 139 |
140#else //!FULL_SYSTEM |
141 |
142void PageTableFault::invoke(ThreadContext *tc) 143{ 144 Process *p = tc->getProcessPtr(); 145 146 // address is higher than the stack region or in the current stack region 147 if (vaddr > p->stack_base || vaddr > p->stack_min) 148 FaultBase::invoke(tc); 149 150 // We've accessed the next page 151 if (vaddr > p->stack_min - PageBytes) { 152 p->stack_min -= PageBytes; 153 if (p->stack_base - p->stack_min > 8*1024*1024) 154 fatal("Over max stack size for one thread\n"); 155 p->pTable->allocate(p->stack_min, PageBytes); 156 warn("Increasing stack size by one page."); 157 } else { 158 FaultBase::invoke(tc); 159 } 160} 161 162#endif |
163} // namespace MipsISA 164 |