f019d9f866
This adds support for trapping into GDB when user-mode faults such as those pertaining to alignment (SIGBUS), traps (SIGTRAP) and unimplemented opcodes (SIGILL) are encountered. Change-Id: Ieb557abd4173b5acb4be6f0c30964aea1eba71a5 Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/47359 Reviewed-by: Boris Shingarov <shingarov@labware.com> Maintainer: Boris Shingarov <shingarov@labware.com> Tested-by: kokoro <noreply+kokoro@google.com>
113 lines
2.9 KiB
C++
113 lines
2.9 KiB
C++
/*
|
|
* Copyright (c) 2003-2005 The Regents of The University of Michigan
|
|
* Copyright (c) 2009 The University of Edinburgh
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef __ARCH_POWER_FAULTS_HH__
|
|
#define __ARCH_POWER_FAULTS_HH__
|
|
|
|
#include "sim/faults.hh"
|
|
|
|
namespace gem5
|
|
{
|
|
|
|
namespace PowerISA
|
|
{
|
|
|
|
class PowerFault : public FaultBase
|
|
{
|
|
protected:
|
|
FaultName _name;
|
|
|
|
PowerFault(FaultName name)
|
|
: _name(name)
|
|
{
|
|
}
|
|
|
|
FaultName
|
|
name() const
|
|
{
|
|
return _name;
|
|
}
|
|
};
|
|
|
|
|
|
class UnimplementedOpcodeFault : public PowerFault
|
|
{
|
|
public:
|
|
UnimplementedOpcodeFault()
|
|
: PowerFault("Unimplemented Opcode")
|
|
{
|
|
}
|
|
|
|
void invoke(ThreadContext *tc, const StaticInstPtr &inst =
|
|
nullStaticInstPtr) override;
|
|
};
|
|
|
|
|
|
class MachineCheckFault : public PowerFault
|
|
{
|
|
public:
|
|
MachineCheckFault()
|
|
: PowerFault("Machine Check")
|
|
{
|
|
}
|
|
};
|
|
|
|
|
|
class AlignmentFault : public PowerFault
|
|
{
|
|
private:
|
|
Addr vaddr;
|
|
public:
|
|
AlignmentFault(Addr va)
|
|
: PowerFault("Alignment"), vaddr(va)
|
|
{
|
|
}
|
|
|
|
void invoke(ThreadContext *tc, const StaticInstPtr &inst =
|
|
nullStaticInstPtr) override;
|
|
};
|
|
|
|
|
|
class TrapFault : public PowerFault
|
|
{
|
|
public:
|
|
TrapFault()
|
|
: PowerFault("Trap")
|
|
{
|
|
}
|
|
|
|
void invoke(ThreadContext *tc, const StaticInstPtr &inst =
|
|
nullStaticInstPtr) override;
|
|
};
|
|
|
|
} // namespace PowerISA
|
|
} // namespace gem5
|
|
|
|
#endif // __ARCH_POWER_FAULTS_HH__
|