exetrace.cc revision 1968 
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    if (flags[INTEL_FORMAT]) {
55#if FULL_SYSTEM
56        bool is_trace_system = (cpu->system->name() == trace_system);
57#else
58        bool is_trace_system = true;
59#endif
60        if (is_trace_system) {
61            ccprintf(outs, "%7d ) ", cycle);
62            outs << "0x" << hex << PC << ":\t";
63            if (staticInst->isLoad()) {
64                outs << "<RD 0x" << hex << addr;
65                outs << ">";
66            } else if (staticInst->isStore()) {
67                outs << "<WR 0x" << hex << addr;
68                outs << ">";
69            }
70            outs << endl;
71        }
72    } else {
73        if (flags[PRINT_CYCLE])
74            ccprintf(outs, "%7d: ", cycle);
75
76        outs << cpu->name() << " ";
77
78        if (flags[TRACE_MISSPEC])
79            outs << (misspeculating ? "-" : "+") << " ";
80
81        if (flags[PRINT_THREAD_NUM])
82            outs << "T" << thread << " : ";
83
84
85        std::string sym_str;
86        Addr sym_addr;
87        if (debugSymbolTable
88            && debugSymbolTable->findNearestSymbol(PC, sym_str, sym_addr)) {
89            if (PC != sym_addr)
90                sym_str += csprintf("+%d", PC - sym_addr);
91            outs << "@" << sym_str << " : ";
92        }
93        else {
94            outs << "0x" << hex << PC << " : ";
95        }
96
97        //
98        //  Print decoded instruction
99        //
100
101#if defined(__GNUC__) && (__GNUC__ < 3)
102        // There's a bug in gcc 2.x library that prevents setw()
103        // from working properly on strings
104        string mc(staticInst->disassemble(PC, debugSymbolTable));
105        while (mc.length() < 26)
106            mc += " ";
107        outs << mc;
108#else
109        outs << setw(26) << left << staticInst->disassemble(PC, debugSymbolTable);
110#endif
111
112        outs << " : ";
113
114        if (flags[PRINT_OP_CLASS]) {
115            outs << opClassStrings[staticInst->opClass()] << " : ";
116        }
117
118        if (flags[PRINT_RESULT_DATA] && data_status != DataInvalid) {
119            outs << " D=";
120#if 0
121            if (data_status == DataDouble)
122                ccprintf(outs, "%f", data.as_double);
123            else
124                ccprintf(outs, "%#018x", data.as_int);
125#else
126            ccprintf(outs, "%#018x", data.as_int);
127#endif
128        }
129
130        if (flags[PRINT_EFF_ADDR] && addr_valid)
131            outs << " A=0x" << hex << addr;
132
133        if (flags[PRINT_INT_REGS] && regs_valid) {
134            for (int i = 0; i < 32;)
135                for (int j = i + 1; i <= j; i++)
136                    ccprintf(outs, "r%02d = %#018x%s", i, iregs->regs[i],
137                             ((i == j) ? "\n" : "    "));
138            outs << "\n";
139        }
140
141        if (flags[PRINT_FETCH_SEQ] && fetch_seq_valid)
142            outs << "  FetchSeq=" << dec << fetch_seq;
143
144        if (flags[PRINT_CP_SEQ] && cp_seq_valid)
145            outs << "  CPSeq=" << dec << cp_seq;
146
147        //
148        //  End of line...
149        //
150        outs << endl;
151    }
152}
153
154
155vector<bool> Trace::InstRecord::flags(NUM_BITS);
156string Trace::InstRecord::trace_system;
157
158////////////////////////////////////////////////////////////////////////
159//
160// Parameter space for per-cycle execution address tracing options.
161// Derive from ParamContext so we can override checkParams() function.
162//
163class ExecutionTraceParamContext : public ParamContext
164{
165  public:
166    ExecutionTraceParamContext(const string &_iniSection)
167        : ParamContext(_iniSection)
168        {
169        }
170
171    void checkParams();	// defined at bottom of file
172};
173
174ExecutionTraceParamContext exeTraceParams("exetrace");
175
176Param<bool> exe_trace_spec(&exeTraceParams, "speculative",
177                           "capture speculative instructions", true);
178
179Param<bool> exe_trace_print_cycle(&exeTraceParams, "print_cycle",
180                                  "print cycle number", true);
181Param<bool> exe_trace_print_opclass(&exeTraceParams, "print_opclass",
182                                  "print op class", true);
183Param<bool> exe_trace_print_thread(&exeTraceParams, "print_thread",
184                                  "print thread number", true);
185Param<bool> exe_trace_print_effaddr(&exeTraceParams, "print_effaddr",
186                                  "print effective address", true);
187Param<bool> exe_trace_print_data(&exeTraceParams, "print_data",
188                                  "print result data", true);
189Param<bool> exe_trace_print_iregs(&exeTraceParams, "print_iregs",
190                                  "print all integer regs", false);
191Param<bool> exe_trace_print_fetchseq(&exeTraceParams, "print_fetchseq",
192                                  "print fetch sequence number", false);
193Param<bool> exe_trace_print_cp_seq(&exeTraceParams, "print_cpseq",
194                                  "print correct-path sequence number", false);
195Param<bool> exe_trace_intel_format(&exeTraceParams, "intel_format",
196                                   "print trace in intel compatible format", false);
197Param<string> exe_trace_system(&exeTraceParams, "trace_system",
198                                   "print trace of which system (client or server)",
199                                   "client");
200
201
202//
203// Helper function for ExecutionTraceParamContext::checkParams() just
204// to get us into the InstRecord namespace
205//
206void
207Trace::InstRecord::setParams()
208{
209    flags[TRACE_MISSPEC]     = exe_trace_spec;
210
211    flags[PRINT_CYCLE]       = exe_trace_print_cycle;
212    flags[PRINT_OP_CLASS]    = exe_trace_print_opclass;
213    flags[PRINT_THREAD_NUM]  = exe_trace_print_thread;
214    flags[PRINT_RESULT_DATA] = exe_trace_print_effaddr;
215    flags[PRINT_EFF_ADDR]    = exe_trace_print_data;
216    flags[PRINT_INT_REGS]    = exe_trace_print_iregs;
217    flags[PRINT_FETCH_SEQ]   = exe_trace_print_fetchseq;
218    flags[PRINT_CP_SEQ]      = exe_trace_print_cp_seq;
219    flags[INTEL_FORMAT]      = exe_trace_intel_format;
220    trace_system	     = exe_trace_system;
221}
222
223void
224ExecutionTraceParamContext::checkParams()
225{
226    Trace::InstRecord::setParams();
227}
228
229