exetrace.cc revision 10383:b31580e27d1f 
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 "debug/ExecAll.hh"
45#include "enums/OpClass.hh"
46
47using namespace std;
48using namespace TheISA;
49
50namespace Trace {
51
52void
53ExeTracerRecord::dumpTicks(ostream &outs)
54{
55    ccprintf(outs, "%7d: ", when);
56}
57
58void
59Trace::ExeTracerRecord::traceInst(StaticInstPtr inst, bool ran)
60{
61    ostream &outs = Trace::output();
62
63    if (!Debug::ExecUser || !Debug::ExecKernel) {
64        bool in_user_mode = TheISA::inUserMode(thread);
65        if (in_user_mode && !Debug::ExecUser) return;
66        if (!in_user_mode && !Debug::ExecKernel) return;
67    }
68
69    if (Debug::ExecTicks)
70        dumpTicks(outs);
71
72    outs << thread->getCpuPtr()->name() << " ";
73
74    if (Debug::ExecSpeculative)
75        outs << (misspeculating ? "-" : "+") << " ";
76
77    if (Debug::ExecAsid)
78        outs << "A" << dec << TheISA::getExecutingAsid(thread) << " ";
79
80    if (Debug::ExecThread)
81        outs << "T" << thread->threadId() << " : ";
82
83    std::string sym_str;
84    Addr sym_addr;
85    Addr cur_pc = pc.instAddr();
86    if (debugSymbolTable && Debug::ExecSymbol &&
87            (!FullSystem || !inUserMode(thread)) &&
88            debugSymbolTable->findNearestSymbol(cur_pc, sym_str, sym_addr)) {
89        if (cur_pc != sym_addr)
90            sym_str += csprintf("+%d",cur_pc - sym_addr);
91        outs << "@" << sym_str;
92    } else {
93        outs << "0x" << hex << cur_pc;
94    }
95
96    if (inst->isMicroop()) {
97        outs << "." << setw(2) << dec << pc.microPC();
98    } else {
99        outs << "   ";
100    }
101
102    outs << " : ";
103
104    //
105    //  Print decoded instruction
106    //
107
108    outs << setw(26) << left;
109    outs << inst->disassemble(cur_pc, debugSymbolTable);
110
111    if (ran) {
112        outs << " : ";
113
114        if (Debug::ExecOpClass) {
115            outs << Enums::OpClassStrings[inst->opClass()] << " : ";
116        }
117
118        if (Debug::ExecResult && !predicate) {
119            outs << "Predicated False";
120        }
121
122        if (Debug::ExecResult && data_status != DataInvalid) {
123            ccprintf(outs, " D=%#018x", data.as_int);
124        }
125
126        if (Debug::ExecEffAddr && addr_valid)
127            outs << " A=0x" << hex << addr;
128
129        if (Debug::ExecFetchSeq && fetch_seq_valid)
130            outs << "  FetchSeq=" << dec << fetch_seq;
131
132        if (Debug::ExecCPSeq && cp_seq_valid)
133            outs << "  CPSeq=" << dec << cp_seq;
134
135        if (Debug::ExecFlags) {
136            outs << "  flags=(";
137            inst->printFlags(outs, "|");
138            outs << ")";
139        }
140    }
141
142    //
143    //  End of line...
144    //
145    outs << endl;
146}
147
148void
149Trace::ExeTracerRecord::dump()
150{
151    /*
152     * The behavior this check tries to achieve is that if ExecMacro is on,
153     * the macroop will be printed. If it's on and microops are also on, it's
154     * printed before the microops start printing to give context. If the
155     * microops aren't printed, then it's printed only when the final microop
156     * finishes. Macroops then behave like regular instructions and don't
157     * complete/print when they fault.
158     */
159    if (Debug::ExecMacro && staticInst->isMicroop() &&
160        ((Debug::ExecMicro &&
161            macroStaticInst && staticInst->isFirstMicroop()) ||
162            (!Debug::ExecMicro &&
163             macroStaticInst && staticInst->isLastMicroop()))) {
164        traceInst(macroStaticInst, false);
165    }
166    if (Debug::ExecMicro || !staticInst->isMicroop()) {
167        traceInst(staticInst, true);
168    }
169}
170
171} // namespace Trace
172
173////////////////////////////////////////////////////////////////////////
174//
175//  ExeTracer Simulation Object
176//
177Trace::ExeTracer *
178ExeTracerParams::create()
179{
180    return new Trace::ExeTracer(this);
181}
182