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/*
* Copyright (c) 2001-2004 The Regents of The University of Michigan
* 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 __TRACE_HH__
#define __TRACE_HH__
#include <vector>
#include "base/cprintf.hh"
#include "base/match.hh"
#include "sim/host.hh"
#include "sim/universe.hh"
#ifndef TRACING_ON
#ifndef NDEBUG
#define TRACING_ON 1
#else
#define TRACING_ON 0
#endif
#endif
#include "base/traceflags.hh"
namespace Trace {
typedef std::vector<bool> FlagVec;
extern FlagVec flags;
#if TRACING_ON
const bool On = true;
#else
const bool On = false;
#endif
inline bool
IsOn(int t)
{
return flags[t];
}
void dump(const uint8_t *data, int count);
class Record
{
protected:
Tick cycle;
Record(Tick _cycle)
: cycle(_cycle)
{
}
public:
virtual ~Record() {}
virtual void dump(std::ostream &) = 0;
};
class PrintfRecord : public Record
{
private:
const char *format;
const std::string &name;
cp::ArgList &args;
public:
PrintfRecord(const char *_format, cp::ArgList &_args,
Tick cycle, const std::string &_name)
: Record(cycle), format(_format), name(_name), args(_args)
{
}
virtual ~PrintfRecord();
virtual void dump(std::ostream &);
};
class DataRecord : public Record
{
private:
const std::string &name;
uint8_t *data;
int len;
public:
DataRecord(Tick cycle, const std::string &name,
const void *_data, int _len);
virtual ~DataRecord();
virtual void dump(std::ostream &);
};
class Log
{
private:
int size; // number of records in log
Record **buffer; // array of 'size' Record ptrs (circular buf)
Record **nextRecPtr; // next slot to use in buffer
Record **wrapRecPtr; // &buffer[size], for quick wrap check
public:
Log();
~Log();
void init(int _size);
void append(Record *); // append trace record to log
void dump(std::ostream &); // dump contents to stream
};
extern Log theLog;
extern ObjectMatch ignore;
inline void
dprintf(const char *format, cp::ArgList &args, Tick cycle,
const std::string &name)
{
if (name.empty() || !ignore.match(name))
theLog.append(new Trace::PrintfRecord(format, args, cycle, name));
}
inline void
dataDump(Tick cycle, const std::string &name, const void *data, int len)
{
theLog.append(new Trace::DataRecord(cycle, name, data, len));
}
extern const std::string DefaultName;
};
// This silly little class allows us to wrap a string in a functor
// object so that we can give a name() that DPRINTF will like
struct StringWrap
{
std::string str;
StringWrap(const std::string &s) : str(s) {}
const std::string &operator()() const { return str; }
};
inline const std::string &name() { return Trace::DefaultName; }
std::ostream &DebugOut();
//
// DPRINTF is a debugging trace facility that allows one to
// selectively enable tracing statements. To use DPRINTF, there must
// be a function or functor called name() that returns a const
// std::string & in the current scope.
//
// If you desire that the automatic printing not occur, use DPRINTFR
// (R for raw)
//
#if TRACING_ON
#define DTRACE(x) (Trace::IsOn(Trace::x))
#define DCOUT(x) if (Trace::IsOn(Trace::x)) DebugOut()
#define DDUMP(x, data, count) \
do { \
if (Trace::IsOn(Trace::x)) \
Trace::dataDump(curTick, name(), data, count); \
} while (0)
#define __dprintf(cycle, name, format, args...) \
Trace::dprintf(format, (*(new cp::ArgList), args), cycle, name)
#define DPRINTF(x, args...) \
do { \
if (Trace::IsOn(Trace::x)) \
__dprintf(curTick, name(), args, cp::ArgListNull()); \
} while (0)
#define DPRINTFR(x, args...) \
do { \
if (Trace::IsOn(Trace::x)) \
__dprintf((Tick)-1, string(), args, cp::ArgListNull()); \
} while (0)
#define DPRINTFN(args...) \
do { \
__dprintf(curTick, name(), args, cp::ArgListNull()); \
} while (0)
#define DPRINTFNR(args...) \
do { \
__dprintf((Tick)-1, string(), args, cp::ArgListNull()); \
} while (0)
#else // !TRACING_ON
#define DTRACE(x) (false)
#define DCOUT(x) if (0) DebugOut()
#define DPRINTF(x, args...) do {} while (0)
#define DPRINTFR(args...) do {} while (0)
#define DPRINTFN(args...) do {} while (0)
#define DPRINTFNR(args...) do {} while (0)
#define DDUMP(x, data, count) do {} while (0)
#endif // TRACING_ON
#endif // __TRACE_HH__
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