exetrace.cc revision 6658:f4de76601762 
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 "config/the_isa.hh"
42#include "enums/OpClass.hh"
43
44using namespace std;
45using namespace TheISA;
46
47namespace Trace {
48
49void
50ExeTracerRecord::dumpTicks(ostream &outs)
51{
52    ccprintf(outs, "%7d: ", when);
53}
54
55void
56Trace::ExeTracerRecord::traceInst(StaticInstPtr inst, bool ran)
57{
58    ostream &outs = Trace::output();
59
60    if (IsOn(ExecTicks))
61        dumpTicks(outs);
62
63    outs << thread->getCpuPtr()->name() << " ";
64
65    if (IsOn(ExecSpeculative))
66        outs << (misspeculating ? "-" : "+") << " ";
67
68    if (IsOn(ExecThread))
69        outs << "T" << thread->threadId() << " : ";
70
71    std::string sym_str;
72    Addr sym_addr;
73    if (debugSymbolTable
74        && IsOn(ExecSymbol)
75#if FULL_SYSTEM
76        && !inUserMode(thread)
77#endif
78        && debugSymbolTable->findNearestSymbol(PC, sym_str, sym_addr)) {
79        if (PC != sym_addr)
80            sym_str += csprintf("+%d", PC - sym_addr);
81        outs << "@" << sym_str;
82    }
83    else {
84        outs << "0x" << hex << PC;
85    }
86
87    if (inst->isMicroop()) {
88        outs << "." << setw(2) << dec << upc;
89    } else {
90        outs << "   ";
91    }
92
93    outs << " : ";
94
95    //
96    //  Print decoded instruction
97    //
98
99    outs << setw(26) << left;
100    outs << inst->disassemble(PC, debugSymbolTable);
101
102    if (ran) {
103        outs << " : ";
104
105        if (IsOn(ExecOpClass)) {
106            outs << Enums::OpClassStrings[inst->opClass()] << " : ";
107        }
108
109        if (IsOn(ExecResult) && data_status != DataInvalid) {
110            ccprintf(outs, " D=%#018x", data.as_int);
111        }
112
113        if (IsOn(ExecEffAddr) && addr_valid)
114            outs << " A=0x" << hex << addr;
115
116        if (IsOn(ExecFetchSeq) && fetch_seq_valid)
117            outs << "  FetchSeq=" << dec << fetch_seq;
118
119        if (IsOn(ExecCPSeq) && cp_seq_valid)
120            outs << "  CPSeq=" << dec << cp_seq;
121    }
122
123    //
124    //  End of line...
125    //
126    outs << endl;
127}
128
129void
130Trace::ExeTracerRecord::dump()
131{
132    /*
133     * The behavior this check tries to achieve is that if ExecMacro is on,
134     * the macroop will be printed. If it's on and microops are also on, it's
135     * printed before the microops start printing to give context. If the
136     * microops aren't printed, then it's printed only when the final microop
137     * finishes. Macroops then behave like regular instructions and don't
138     * complete/print when they fault.
139     */
140    if (IsOn(ExecMacro) && staticInst->isMicroop() &&
141            ((IsOn(ExecMicro) &&
142             macroStaticInst && staticInst->isFirstMicroop()) ||
143            (!IsOn(ExecMicro) &&
144             macroStaticInst && staticInst->isLastMicroop()))) {
145        traceInst(macroStaticInst, false);
146    }
147    if (IsOn(ExecMicro) || !staticInst->isMicroop()) {
148        traceInst(staticInst, true);
149    }
150}
151
152/* namespace Trace */ }
153
154////////////////////////////////////////////////////////////////////////
155//
156//  ExeTracer Simulation Object
157//
158Trace::ExeTracer *
159ExeTracerParams::create()
160{
161    return new Trace::ExeTracer(this);
162};
163