exetrace.cc revision 10664:61a0b02aa800 
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(const 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::ExecAsid)
75        outs << "A" << dec << TheISA::getExecutingAsid(thread) << " ";
76
77    if (Debug::ExecThread)
78        outs << "T" << thread->threadId() << " : ";
79
80    std::string sym_str;
81    Addr sym_addr;
82    Addr cur_pc = pc.instAddr();
83    if (debugSymbolTable && Debug::ExecSymbol &&
84            (!FullSystem || !inUserMode(thread)) &&
85            debugSymbolTable->findNearestSymbol(cur_pc, sym_str, sym_addr)) {
86        if (cur_pc != sym_addr)
87            sym_str += csprintf("+%d",cur_pc - sym_addr);
88        outs << "@" << sym_str;
89    } else {
90        outs << "0x" << hex << cur_pc;
91    }
92
93    if (inst->isMicroop()) {
94        outs << "." << setw(2) << dec << pc.microPC();
95    } else {
96        outs << "   ";
97    }
98
99    outs << " : ";
100
101    //
102    //  Print decoded instruction
103    //
104
105    outs << setw(26) << left;
106    outs << inst->disassemble(cur_pc, debugSymbolTable);
107
108    if (ran) {
109        outs << " : ";
110
111        if (Debug::ExecOpClass) {
112            outs << Enums::OpClassStrings[inst->opClass()] << " : ";
113        }
114
115        if (Debug::ExecResult && !predicate) {
116            outs << "Predicated False";
117        }
118
119        if (Debug::ExecResult && data_status != DataInvalid) {
120            ccprintf(outs, " D=%#018x", data.as_int);
121        }
122
123        if (Debug::ExecEffAddr && addr_valid)
124            outs << " A=0x" << hex << addr;
125
126        if (Debug::ExecFetchSeq && fetch_seq_valid)
127            outs << "  FetchSeq=" << dec << fetch_seq;
128
129        if (Debug::ExecCPSeq && cp_seq_valid)
130            outs << "  CPSeq=" << dec << cp_seq;
131
132        if (Debug::ExecFlags) {
133            outs << "  flags=(";
134            inst->printFlags(outs, "|");
135            outs << ")";
136        }
137    }
138
139    //
140    //  End of line...
141    //
142    outs << endl;
143}
144
145void
146Trace::ExeTracerRecord::dump()
147{
148    /*
149     * The behavior this check tries to achieve is that if ExecMacro is on,
150     * the macroop will be printed. If it's on and microops are also on, it's
151     * printed before the microops start printing to give context. If the
152     * microops aren't printed, then it's printed only when the final microop
153     * finishes. Macroops then behave like regular instructions and don't
154     * complete/print when they fault.
155     */
156    if (Debug::ExecMacro && staticInst->isMicroop() &&
157        ((Debug::ExecMicro &&
158            macroStaticInst && staticInst->isFirstMicroop()) ||
159            (!Debug::ExecMicro &&
160             macroStaticInst && staticInst->isLastMicroop()))) {
161        traceInst(macroStaticInst, false);
162    }
163    if (Debug::ExecMicro || !staticInst->isMicroop()) {
164        traceInst(staticInst, true);
165    }
166}
167
168} // namespace Trace
169
170////////////////////////////////////////////////////////////////////////
171//
172//  ExeTracer Simulation Object
173//
174Trace::ExeTracer *
175ExeTracerParams::create()
176{
177    return new Trace::ExeTracer(this);
178}
179