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/*
* Copyright (c) 2001-2005 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.
*
* Authors: Steve Reinhardt
* Nathan Binkert
*/
#ifndef __EXETRACE_HH__
#define __EXETRACE_HH__
#include <cstring>
#include <fstream>
#include <vector>
#include "base/trace.hh"
#include "cpu/inst_seq.hh" // for InstSeqNum
#include "cpu/static_inst.hh"
#include "cpu/thread_context.hh"
#include "sim/host.hh"
class ThreadContext;
namespace Trace {
class InstRecord
{
protected:
typedef TheISA::IntRegFile IntRegFile;
Tick when;
// The following fields are initialized by the constructor and
// thus guaranteed to be valid.
ThreadContext *thread;
// need to make this ref-counted so it doesn't go away before we
// dump the record
StaticInstPtr staticInst;
Addr PC;
bool misspeculating;
// The remaining fields are only valid for particular instruction
// types (e.g, addresses for memory ops) or when particular
// options are enabled (e.g., tracing full register contents).
// Each data field has an associated valid flag to indicate
// whether the data field is valid.
Addr addr;
bool addr_valid;
union {
uint64_t as_int;
double as_double;
} data;
enum {
DataInvalid = 0,
DataInt8 = 1, // set to equal number of bytes
DataInt16 = 2,
DataInt32 = 4,
DataInt64 = 8,
DataDouble = 3
} data_status;
InstSeqNum fetch_seq;
bool fetch_seq_valid;
InstSeqNum cp_seq;
bool cp_seq_valid;
struct iRegFile {
IntRegFile regs;
};
iRegFile *iregs;
bool regs_valid;
public:
InstRecord(Tick _when, ThreadContext *_thread,
const StaticInstPtr &_staticInst,
Addr _pc, bool spec)
: when(_when), thread(_thread),
staticInst(_staticInst), PC(_pc),
misspeculating(spec)
{
data_status = DataInvalid;
addr_valid = false;
regs_valid = false;
fetch_seq_valid = false;
cp_seq_valid = false;
}
~InstRecord() { }
void setAddr(Addr a) { addr = a; addr_valid = true; }
void setData(uint64_t d) { data.as_int = d; data_status = DataInt64; }
void setData(uint32_t d) { data.as_int = d; data_status = DataInt32; }
void setData(uint16_t d) { data.as_int = d; data_status = DataInt16; }
void setData(uint8_t d) { data.as_int = d; data_status = DataInt8; }
void setData(int64_t d) { setData((uint64_t)d); }
void setData(int32_t d) { setData((uint32_t)d); }
void setData(int16_t d) { setData((uint16_t)d); }
void setData(int8_t d) { setData((uint8_t)d); }
void setData(double d) { data.as_double = d; data_status = DataDouble; }
void setFetchSeq(InstSeqNum seq)
{ fetch_seq = seq; fetch_seq_valid = true; }
void setCPSeq(InstSeqNum seq)
{ cp_seq = seq; cp_seq_valid = true; }
void setRegs(const IntRegFile ®s);
void dump();
};
inline void
InstRecord::setRegs(const IntRegFile ®s)
{
if (!iregs)
iregs = new iRegFile;
std::memcpy(&iregs->regs, ®s, sizeof(IntRegFile));
regs_valid = true;
}
inline InstRecord *
getInstRecord(Tick when, ThreadContext *tc, const StaticInstPtr staticInst,
Addr pc)
{
if (!IsOn(ExecEnable))
return NULL;
if (!Trace::enabled)
return NULL;
if (!IsOn(ExecSpeculative) && tc->misspeculating())
return NULL;
return new InstRecord(when, tc, staticInst, pc, tc->misspeculating());
}
/* namespace Trace */ }
#endif // __EXETRACE_HH__
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