exetrace.cc revision 5866 
1/*
2 * Copyright (c) 2001-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Steve Reinhardt
29 *          Lisa Hsu
30 *          Nathan Binkert
31 *          Steve Raasch
32 */
33
34#include <iomanip>
35
36#include "base/loader/symtab.hh"
37#include "cpu/base.hh"
38#include "cpu/exetrace.hh"
39#include "cpu/static_inst.hh"
40#include "cpu/thread_context.hh"
41#include "enums/OpClass.hh"
42
43using namespace std;
44using namespace TheISA;
45
46namespace Trace {
47
48void
49ExeTracerRecord::dumpTicks(ostream &outs)
50{
51    ccprintf(outs, "%7d: ", when);
52}
53
54void
55Trace::ExeTracerRecord::traceInst(StaticInstPtr inst, bool ran)
56{
57    ostream &outs = Trace::output();
58
59    if (IsOn(ExecTicks))
60        dumpTicks(outs);
61
62    outs << thread->getCpuPtr()->name() << " ";
63
64    if (IsOn(ExecSpeculative))
65        outs << (misspeculating ? "-" : "+") << " ";
66
67    if (IsOn(ExecThread))
68        outs << "T" << thread->threadId() << " : ";
69
70    std::string sym_str;
71    Addr sym_addr;
72    if (debugSymbolTable
73        && IsOn(ExecSymbol)
74        && debugSymbolTable->findNearestSymbol(PC, sym_str, sym_addr)) {
75        if (PC != sym_addr)
76            sym_str += csprintf("+%d", PC - sym_addr);
77        outs << "@" << sym_str;
78    }
79    else {
80        outs << "0x" << hex << PC;
81    }
82
83    if (inst->isMicroop()) {
84        outs << "." << setw(2) << dec << upc;
85    } else {
86        outs << "   ";
87    }
88
89    outs << " : ";
90
91    //
92    //  Print decoded instruction
93    //
94
95    outs << setw(26) << left;
96    outs << inst->disassemble(PC, debugSymbolTable);
97
98    if (ran) {
99        outs << " : ";
100
101        if (IsOn(ExecOpClass)) {
102            outs << Enums::OpClassStrings[inst->opClass()] << " : ";
103        }
104
105        if (IsOn(ExecResult) && data_status != DataInvalid) {
106            ccprintf(outs, " D=%#018x", data.as_int);
107        }
108
109        if (IsOn(ExecEffAddr) && addr_valid)
110            outs << " A=0x" << hex << addr;
111
112        if (IsOn(ExecFetchSeq) && fetch_seq_valid)
113            outs << "  FetchSeq=" << dec << fetch_seq;
114
115        if (IsOn(ExecCPSeq) && cp_seq_valid)
116            outs << "  CPSeq=" << dec << cp_seq;
117    }
118
119    //
120    //  End of line...
121    //
122    outs << endl;
123}
124
125void
126Trace::ExeTracerRecord::dump()
127{
128    /*
129     * The behavior this check tries to achieve is that if ExecMacro is on,
130     * the macroop will be printed. If it's on and microops are also on, it's
131     * printed before the microops start printing to give context. If the
132     * microops aren't printed, then it's printed only when the final microop
133     * finishes. Macroops then behave like regular instructions and don't
134     * complete/print when they fault.
135     */
136    if (IsOn(ExecMacro) && staticInst->isMicroop() &&
137            ((IsOn(ExecMicro) &&
138             macroStaticInst && staticInst->isFirstMicroop()) ||
139            (!IsOn(ExecMicro) &&
140             macroStaticInst && staticInst->isLastMicroop()))) {
141        traceInst(macroStaticInst, false);
142    }
143    if (IsOn(ExecMicro) || !staticInst->isMicroop()) {
144        traceInst(staticInst, true);
145    }
146}
147
148/* namespace Trace */ }
149
150////////////////////////////////////////////////////////////////////////
151//
152//  ExeTracer Simulation Object
153//
154Trace::ExeTracer *
155ExeTracerParams::create()
156{
157    return new Trace::ExeTracer(this);
158};
159