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/*
* Copyright (c) 2010 Advanced Micro Devices, Inc.
* All rights reserved.
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* 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.
*
* Authors: Gabe Black
*/
#ifndef __ARCH_GENERIC_DEBUGFAULTS_HH__
#define __ARCH_GENERIC_DEBUGFAULTS_HH__
#include <string>
#include "base/logging.hh"
#include "sim/faults.hh"
namespace GenericISA
{
class M5DebugFault : public FaultBase
{
protected:
std::string _message;
virtual void debugFunc() = 0;
void
advancePC(ThreadContext *tc, const StaticInstPtr &inst)
{
if (inst) {
auto pc = tc->pcState();
inst->advancePC(pc);
tc->pcState(pc);
}
}
public:
M5DebugFault(std::string _m) : _message(_m) {}
template <class ...Args>
M5DebugFault(const std::string &format, const Args &...args) :
_message(csprintf(format, args...))
{}
std::string message() { return _message; }
void
invoke(ThreadContext *tc, const StaticInstPtr &inst =
StaticInst::nullStaticInstPtr) override
{
debugFunc();
advancePC(tc, inst);
}
};
// The "Flavor" template parameter is to keep warn, hack or inform messages
// with the same token from blocking each other.
template <class Flavor>
class M5DebugOnceFault : public M5DebugFault
{
protected:
bool &once;
template <class F, class OnceToken>
static bool &
lookUpToken(const OnceToken &token)
{
static std::map<OnceToken, bool> tokenMap;
return tokenMap[token];
}
public:
template <class OnceToken, class ...Args>
M5DebugOnceFault(const OnceToken &token, const std::string &format,
const Args &...args) :
M5DebugFault(format, args...), once(lookUpToken<Flavor>(token))
{}
void
invoke(ThreadContext *tc, const StaticInstPtr &inst =
StaticInst::nullStaticInstPtr) override
{
if (!once) {
once = true;
debugFunc();
}
advancePC(tc, inst);
}
};
class M5PanicFault : public M5DebugFault
{
public:
using M5DebugFault::M5DebugFault;
void debugFunc() override { panic(message()); }
FaultName name() const override { return "panic fault"; }
};
class M5FatalFault : public M5DebugFault
{
public:
using M5DebugFault::M5DebugFault;
void debugFunc() override { fatal(message()); }
FaultName name() const override { return "fatal fault"; }
};
template <class Base>
class M5WarnFaultBase : public Base
{
public:
using Base::Base;
void debugFunc() override { warn(this->message()); }
FaultName name() const override { return "warn fault"; }
};
using M5WarnFault = M5WarnFaultBase<M5DebugFault>;
using M5WarnOnceFault = M5WarnFaultBase<M5DebugOnceFault<M5WarnFault>>;
template <class Base>
class M5HackFaultBase : public Base
{
public:
using Base::Base;
void debugFunc() override { hack(this->message()); }
FaultName name() const override { return "hack fault"; }
};
using M5HackFault = M5HackFaultBase<M5DebugFault>;
using M5HackOnceFault = M5HackFaultBase<M5DebugOnceFault<M5HackFault>>;
template <class Base>
class M5InformFaultBase : public Base
{
public:
using Base::Base;
void debugFunc() override { inform(this->message()); }
FaultName name() const override { return "inform fault"; }
};
using M5InformFault = M5InformFaultBase<M5DebugFault>;
using M5InformOnceFault =
M5InformFaultBase<M5DebugOnceFault<M5InformFault>>;
} // namespace GenericISA
#endif // __ARCH_GENERIC_DEBUGFAULTS_HH__
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