exetrace.cc revision 1762 
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
29#include <fstream>
30#include <iomanip>
31
32#include "sim/param.hh"
33#include "encumbered/cpu/full/dyn_inst.hh"
34#include "encumbered/cpu/full/spec_state.hh"
35#include "encumbered/cpu/full/issue.hh"
36#include "cpu/exetrace.hh"
37#include "cpu/exec_context.hh"
38#include "base/loader/symtab.hh"
39#include "cpu/base.hh"
40#include "cpu/static_inst.hh"
41
42using namespace std;
43
44
45////////////////////////////////////////////////////////////////////////
46//
47//  Methods for the InstRecord object
48//
49
50
51void
52Trace::InstRecord::dump(ostream &outs)
53{
54
55    if (flags[PRINT_CYCLE])
56        ccprintf(outs, "%7d: ", cycle);
57
58    outs << cpu->name() << " ";
59
60    if (flags[TRACE_MISSPEC])
61        outs << (misspeculating ? "-" : "+") << " ";
62
63    if (flags[PRINT_THREAD_NUM])
64        outs << "T" << thread << " : ";
65
66
67    std::string sym_str;
68    Addr sym_addr;
69    if (debugSymbolTable
70        && debugSymbolTable->findNearestSymbol(PC, sym_str, sym_addr)) {
71        if (PC != sym_addr)
72            sym_str += csprintf("+%d", PC - sym_addr);
73        outs << "@" << sym_str << " : ";
74    }
75    else {
76        outs << "0x" << hex << PC << " : ";
77    }
78
79    //
80    //  Print decoded instruction
81    //
82
83#if defined(__GNUC__) && (__GNUC__ < 3)
84    // There's a bug in gcc 2.x library that prevents setw()
85    // from working properly on strings
86    string mc(staticInst->disassemble(PC, debugSymbolTable));
87    while (mc.length() < 26)
88        mc += " ";
89    outs << mc;
90#else
91    outs << setw(26) << left << staticInst->disassemble(PC, debugSymbolTable);
92#endif
93
94    outs << " : ";
95
96    if (flags[PRINT_OP_CLASS]) {
97        outs << opClassStrings[staticInst->opClass()] << " : ";
98    }
99
100    if (flags[PRINT_RESULT_DATA] && data_status != DataInvalid) {
101        outs << " D=";
102#if 0
103        if (data_status == DataDouble)
104            ccprintf(outs, "%f", data.as_double);
105        else
106            ccprintf(outs, "%#018x", data.as_int);
107#else
108        ccprintf(outs, "%#018x", data.as_int);
109#endif
110    }
111
112    if (flags[PRINT_EFF_ADDR] && addr_valid)
113        outs << " A=0x" << hex << addr;
114
115    if (flags[PRINT_INT_REGS] && regs_valid) {
116        for (int i = 0; i < 32;)
117            for (int j = i + 1; i <= j; i++)
118                ccprintf(outs, "r%02d = %#018x%s", i, iregs->regs[i],
119                         ((i == j) ? "\n" : "    "));
120        outs << "\n";
121    }
122
123    if (flags[PRINT_FETCH_SEQ] && fetch_seq_valid)
124        outs << "  FetchSeq=" << dec << fetch_seq;
125
126    if (flags[PRINT_CP_SEQ] && cp_seq_valid)
127        outs << "  CPSeq=" << dec << cp_seq;
128
129    //
130    //  End of line...
131    //
132    outs << endl;
133}
134
135
136vector<bool> Trace::InstRecord::flags(NUM_BITS);
137
138////////////////////////////////////////////////////////////////////////
139//
140// Parameter space for per-cycle execution address tracing options.
141// Derive from ParamContext so we can override checkParams() function.
142//
143class ExecutionTraceParamContext : public ParamContext
144{
145  public:
146    ExecutionTraceParamContext(const string &_iniSection)
147        : ParamContext(_iniSection)
148        {
149        }
150
151    void checkParams();	// defined at bottom of file
152};
153
154ExecutionTraceParamContext exeTraceParams("exetrace");
155
156Param<bool> exe_trace_spec(&exeTraceParams, "speculative",
157                           "capture speculative instructions", true);
158
159Param<bool> exe_trace_print_cycle(&exeTraceParams, "print_cycle",
160                                  "print cycle number", true);
161Param<bool> exe_trace_print_opclass(&exeTraceParams, "print_opclass",
162                                  "print op class", true);
163Param<bool> exe_trace_print_thread(&exeTraceParams, "print_thread",
164                                  "print thread number", true);
165Param<bool> exe_trace_print_effaddr(&exeTraceParams, "print_effaddr",
166                                  "print effective address", true);
167Param<bool> exe_trace_print_data(&exeTraceParams, "print_data",
168                                  "print result data", true);
169Param<bool> exe_trace_print_iregs(&exeTraceParams, "print_iregs",
170                                  "print all integer regs", false);
171Param<bool> exe_trace_print_fetchseq(&exeTraceParams, "print_fetchseq",
172                                  "print fetch sequence number", false);
173Param<bool> exe_trace_print_cp_seq(&exeTraceParams, "print_cpseq",
174                                  "print correct-path sequence number", false);
175
176//
177// Helper function for ExecutionTraceParamContext::checkParams() just
178// to get us into the InstRecord namespace
179//
180void
181Trace::InstRecord::setParams()
182{
183    flags[TRACE_MISSPEC]     = exe_trace_spec;
184
185    flags[PRINT_CYCLE]       = exe_trace_print_cycle;
186    flags[PRINT_OP_CLASS]    = exe_trace_print_opclass;
187    flags[PRINT_THREAD_NUM]  = exe_trace_print_thread;
188    flags[PRINT_RESULT_DATA] = exe_trace_print_effaddr;
189    flags[PRINT_EFF_ADDR]    = exe_trace_print_data;
190    flags[PRINT_INT_REGS]    = exe_trace_print_iregs;
191    flags[PRINT_FETCH_SEQ]   = exe_trace_print_fetchseq;
192    flags[PRINT_CP_SEQ]      = exe_trace_print_cp_seq;
193}
194
195void
196ExecutionTraceParamContext::checkParams()
197{
198    Trace::InstRecord::setParams();
199}
200
201