exetrace.cc revision 8229 
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 "arch/isa_traits.hh"
37#include "arch/utility.hh"
38#include "base/loader/symtab.hh"
39#include "config/the_isa.hh"
40#include "cpu/base.hh"
41#include "cpu/exetrace.hh"
42#include "cpu/static_inst.hh"
43#include "cpu/thread_context.hh"
44#include "enums/OpClass.hh"
45
46using namespace std;
47using namespace TheISA;
48
49namespace Trace {
50
51void
52ExeTracerRecord::dumpTicks(ostream &outs)
53{
54    ccprintf(outs, "%7d: ", when);
55}
56
57void
58Trace::ExeTracerRecord::traceInst(StaticInstPtr inst, bool ran)
59{
60    ostream &outs = Trace::output();
61
62    if (IsOn(ExecTicks))
63        dumpTicks(outs);
64
65    outs << thread->getCpuPtr()->name() << " ";
66
67    if (IsOn(ExecSpeculative))
68        outs << (misspeculating ? "-" : "+") << " ";
69
70    if (IsOn(ExecThread))
71        outs << "T" << thread->threadId() << " : ";
72
73    std::string sym_str;
74    Addr sym_addr;
75    Addr cur_pc = pc.instAddr();
76    if (debugSymbolTable
77        && IsOn(ExecSymbol)
78#if FULL_SYSTEM
79        && !inUserMode(thread)
80#endif
81        && debugSymbolTable->findNearestSymbol(cur_pc, sym_str, sym_addr)) {
82        if (cur_pc != sym_addr)
83            sym_str += csprintf("+%d",cur_pc - sym_addr);
84        outs << "@" << sym_str;
85    } else {
86        outs << "0x" << hex << cur_pc;
87    }
88
89    if (inst->isMicroop()) {
90        outs << "." << setw(2) << dec << pc.microPC();
91    } else {
92        outs << "   ";
93    }
94
95    outs << " : ";
96
97    //
98    //  Print decoded instruction
99    //
100
101    outs << setw(26) << left;
102    outs << inst->disassemble(cur_pc, debugSymbolTable);
103
104    if (ran) {
105        outs << " : ";
106
107        if (IsOn(ExecOpClass)) {
108            outs << Enums::OpClassStrings[inst->opClass()] << " : ";
109        }
110
111        if (IsOn(ExecResult) && predicate == false) {
112            outs << "Predicated False";
113        }
114
115        if (IsOn(ExecResult) && data_status != DataInvalid) {
116            ccprintf(outs, " D=%#018x", data.as_int);
117        }
118
119        if (IsOn(ExecEffAddr) && addr_valid)
120            outs << " A=0x" << hex << addr;
121
122        if (IsOn(ExecFetchSeq) && fetch_seq_valid)
123            outs << "  FetchSeq=" << dec << fetch_seq;
124
125        if (IsOn(ExecCPSeq) && cp_seq_valid)
126            outs << "  CPSeq=" << dec << cp_seq;
127    }
128
129    //
130    //  End of line...
131    //
132    outs << endl;
133}
134
135void
136Trace::ExeTracerRecord::dump()
137{
138    /*
139     * The behavior this check tries to achieve is that if ExecMacro is on,
140     * the macroop will be printed. If it's on and microops are also on, it's
141     * printed before the microops start printing to give context. If the
142     * microops aren't printed, then it's printed only when the final microop
143     * finishes. Macroops then behave like regular instructions and don't
144     * complete/print when they fault.
145     */
146    if (IsOn(ExecMacro) && staticInst->isMicroop() &&
147            ((IsOn(ExecMicro) &&
148             macroStaticInst && staticInst->isFirstMicroop()) ||
149            (!IsOn(ExecMicro) &&
150             macroStaticInst && staticInst->isLastMicroop()))) {
151        traceInst(macroStaticInst, false);
152    }
153    if (IsOn(ExecMicro) || !staticInst->isMicroop()) {
154        traceInst(staticInst, true);
155    }
156}
157
158} // namespace Trace
159
160////////////////////////////////////////////////////////////////////////
161//
162//  ExeTracer Simulation Object
163//
164Trace::ExeTracer *
165ExeTracerParams::create()
166{
167    return new Trace::ExeTracer(this);
168};
169