faults.cc

Go to the documentation of this file.

/*
 * Copyright (c) 2021 IBM Corporation
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer;
 * redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution;
 * neither the name of the copyright holders nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#include "arch/power/faults.hh"
 
#include <csignal>
 
#include "cpu/base.hh"
#include "cpu/thread_context.hh"
#include "sim/system.hh"
 
namespace gem5
{
 
namespace PowerISA
{
 
void
UnimplementedOpcodeFault::invoke(ThreadContext *tc, const StaticInstPtr &inst)
{
    if (! tc->getSystemPtr()->trapToGdb(GDBSignal::ILL, tc->contextId()) ) {
        panic("Unimplemented opcode encountered at virtual address %#x\n",
              tc->pcState().instAddr());
    }
}
 
void
AlignmentFault::invoke(ThreadContext *tc, const StaticInstPtr &inst)
{
    if (! tc->getSystemPtr()->trapToGdb(GDBSignal::BUS, tc->contextId()) ) {
        panic("Alignment fault when accessing virtual address %#x\n",
              vaddr);
    }
}
 
void
TrapFault::invoke(ThreadContext *tc, const StaticInstPtr &inst)
{
    if (! tc->getSystemPtr()->trapToGdb(GDBSignal::TRAP, tc->contextId()) ) {
        panic("Trap encountered at virtual address %#x\n",
              tc->pcState().instAddr());
    }
}
 
} // namespace PowerISA
 
} // namespace gem5