faults.cc revision 8589:d0772caaeacd
1955SN/A/*
2955SN/A * Copyright (c) 2003-2005 The Regents of The University of Michigan
31762SN/A * All rights reserved.
4955SN/A *
5955SN/A * Redistribution and use in source and binary forms, with or without
6955SN/A * modification, are permitted provided that the following conditions are
7955SN/A * met: redistributions of source code must retain the above copyright
8955SN/A * notice, this list of conditions and the following disclaimer;
9955SN/A * redistributions in binary form must reproduce the above copyright
10955SN/A * notice, this list of conditions and the following disclaimer in the
11955SN/A * documentation and/or other materials provided with the distribution;
12955SN/A * neither the name of the copyright holders nor the names of its
13955SN/A * contributors may be used to endorse or promote products derived from
14955SN/A * this software without specific prior written permission.
15955SN/A *
16955SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17955SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18955SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19955SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20955SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21955SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22955SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23955SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24955SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25955SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26955SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27955SN/A *
282665Ssaidi@eecs.umich.edu * Authors: Nathan Binkert
292665Ssaidi@eecs.umich.edu *          Gabe Black
30955SN/A */
31955SN/A
32955SN/A#include "arch/isa_traits.hh"
33955SN/A#include "base/misc.hh"
34955SN/A#include "cpu/base.hh"
352632Sstever@eecs.umich.edu#include "cpu/thread_context.hh"
362632Sstever@eecs.umich.edu#include "debug/Fault.hh"
372632Sstever@eecs.umich.edu#include "mem/page_table.hh"
382632Sstever@eecs.umich.edu#include "sim/faults.hh"
39955SN/A#include "sim/process.hh"
402632Sstever@eecs.umich.edu
412632Sstever@eecs.umich.eduvoid FaultBase::invoke(ThreadContext * tc, StaticInstPtr inst)
422761Sstever@eecs.umich.edu{
432632Sstever@eecs.umich.edu    if (FULL_SYSTEM) {
442632Sstever@eecs.umich.edu        DPRINTF(Fault, "Fault %s at PC: %s\n", name(), tc->pcState());
452632Sstever@eecs.umich.edu        assert(!tc->misspeculating());
462761Sstever@eecs.umich.edu    } else {
472761Sstever@eecs.umich.edu        panic("fault (%s) detected @ PC %s", name(), tc->pcState());
482761Sstever@eecs.umich.edu    }
492632Sstever@eecs.umich.edu}
502632Sstever@eecs.umich.edu
512761Sstever@eecs.umich.eduvoid UnimpFault::invoke(ThreadContext * tc, StaticInstPtr inst)
522761Sstever@eecs.umich.edu{
532761Sstever@eecs.umich.edu    panic("Unimpfault: %s\n", panicStr.c_str());
542761Sstever@eecs.umich.edu}
552761Sstever@eecs.umich.edu
562632Sstever@eecs.umich.eduvoid ReExec::invoke(ThreadContext *tc, StaticInstPtr inst)
572632Sstever@eecs.umich.edu{
582632Sstever@eecs.umich.edu    tc->pcState(tc->pcState());
592632Sstever@eecs.umich.edu}
602632Sstever@eecs.umich.edu
612632Sstever@eecs.umich.eduvoid GenericPageTableFault::invoke(ThreadContext *tc, StaticInstPtr inst)
622632Sstever@eecs.umich.edu{
63955SN/A    bool handled = false;
64955SN/A#if !FULL_SYSTEM
65955SN/A    Process *p = tc->getProcessPtr();
66955SN/A
67955SN/A    handled = p->fixupStackFault(vaddr);
685396Ssaidi@eecs.umich.edu#endif
694202Sbinkertn@umich.edu    if (!handled)
705342Sstever@gmail.com        panic("Page table fault when accessing virtual address %#x\n", vaddr);
71955SN/A
725273Sstever@gmail.com}
735273Sstever@gmail.com
742656Sstever@eecs.umich.eduvoid GenericAlignmentFault::invoke(ThreadContext *tc, StaticInstPtr inst)
752656Sstever@eecs.umich.edu{
762656Sstever@eecs.umich.edu    panic("Alignment fault when accessing virtual address %#x\n", vaddr);
772656Sstever@eecs.umich.edu}
782656Sstever@eecs.umich.edu