exetrace.cc revision 3064:e907dd767a63 
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 <fstream>
35#include <iomanip>
36
37#include "arch/regfile.hh"
38#include "base/loader/symtab.hh"
39#include "cpu/base.hh"
40#include "cpu/exetrace.hh"
41#include "cpu/static_inst.hh"
42#include "sim/param.hh"
43#include "sim/system.hh"
44
45using namespace std;
46using namespace TheISA;
47
48////////////////////////////////////////////////////////////////////////
49//
50//  Methods for the InstRecord object
51//
52
53
54void
55Trace::InstRecord::dump(ostream &outs)
56{
57    static uint64_t regs[32] = {
58        0, 0, 0, 0, 0, 0, 0, 0,
59        0, 0, 0, 0, 0, 0, 0, 0,
60        0, 0, 0, 0, 0, 0, 0, 0,
61        0, 0, 0, 0, 0, 0, 0, 0};
62    static uint64_t ccr = 0;
63    static uint64_t y = 0;
64    static uint64_t floats[32];
65    uint64_t newVal;
66    static const char * prefixes[4] = {"G", "O", "L", "I"};
67    if (flags[PRINT_REG_DELTA])
68    {
69        char buf[256];
70        sprintf(buf, "PC = 0x%016llx", thread->readNextPC());
71        outs << buf;
72        sprintf(buf, " NPC = 0x%016llx", thread->readNextNPC());
73        outs << buf;
74        newVal = thread->readMiscReg(SparcISA::MISCREG_CCR);
75        if(newVal != ccr)
76        {
77            sprintf(buf, " CCR = 0x%016llx", newVal);
78            outs << buf;
79            ccr = newVal;
80        }
81        newVal = thread->readMiscReg(SparcISA::MISCREG_Y);
82        if(newVal != y)
83        {
84            sprintf(buf, " Y = 0x%016llx", newVal);
85            outs << buf;
86            y = newVal;
87        }
88        for(int y = 0; y < 4; y++)
89        {
90            for(int x = 0; x < 8; x++)
91            {
92                int index = x + 8 * y;
93                newVal = thread->readIntReg(index);
94                if(regs[index] != newVal)
95                {
96                    sprintf(buf, " %s%d = 0x%016llx", prefixes[y], x, newVal);
97                    outs << buf;
98                    regs[index] = newVal;
99                }
100            }
101        }
102        for(int y = 0; y < 32; y++)
103        {
104            newVal = thread->readFloatRegBits(2 * y, 64);
105            if(floats[y] != newVal)
106            {
107                sprintf(buf, " F%d = 0x%016llx", y, newVal);
108                outs << buf;
109                floats[y] = newVal;
110            }
111        }
112        outs << endl;
113    }
114    else if (flags[INTEL_FORMAT]) {
115#if FULL_SYSTEM
116        bool is_trace_system = (thread->getCpuPtr()->system->name() == trace_system);
117#else
118        bool is_trace_system = true;
119#endif
120        if (is_trace_system) {
121            ccprintf(outs, "%7d ) ", cycle);
122            outs << "0x" << hex << PC << ":\t";
123            if (staticInst->isLoad()) {
124                outs << "<RD 0x" << hex << addr;
125                outs << ">";
126            } else if (staticInst->isStore()) {
127                outs << "<WR 0x" << hex << addr;
128                outs << ">";
129            }
130            outs << endl;
131        }
132    } else {
133        if (flags[PRINT_CYCLE])
134            ccprintf(outs, "%7d: ", cycle);
135
136        outs << thread->getCpuPtr()->name() << " ";
137
138        if (flags[TRACE_MISSPEC])
139            outs << (misspeculating ? "-" : "+") << " ";
140
141        if (flags[PRINT_THREAD_NUM])
142            outs << "T" << thread->getThreadNum() << " : ";
143
144
145        std::string sym_str;
146        Addr sym_addr;
147        if (debugSymbolTable
148            && debugSymbolTable->findNearestSymbol(PC, sym_str, sym_addr)
149            && flags[PC_SYMBOL]) {
150            if (PC != sym_addr)
151                sym_str += csprintf("+%d", PC - sym_addr);
152            outs << "@" << sym_str << " : ";
153        }
154        else {
155            outs << "0x" << hex << PC << " : ";
156        }
157
158        //
159        //  Print decoded instruction
160        //
161
162#if defined(__GNUC__) && (__GNUC__ < 3)
163        // There's a bug in gcc 2.x library that prevents setw()
164        // from working properly on strings
165        string mc(staticInst->disassemble(PC, debugSymbolTable));
166        while (mc.length() < 26)
167            mc += " ";
168        outs << mc;
169#else
170        outs << setw(26) << left << staticInst->disassemble(PC, debugSymbolTable);
171#endif
172
173        outs << " : ";
174
175        if (flags[PRINT_OP_CLASS]) {
176            outs << opClassStrings[staticInst->opClass()] << " : ";
177        }
178
179        if (flags[PRINT_RESULT_DATA] && data_status != DataInvalid) {
180            outs << " D=";
181#if 0
182            if (data_status == DataDouble)
183                ccprintf(outs, "%f", data.as_double);
184            else
185                ccprintf(outs, "%#018x", data.as_int);
186#else
187            ccprintf(outs, "%#018x", data.as_int);
188#endif
189        }
190
191        if (flags[PRINT_EFF_ADDR] && addr_valid)
192            outs << " A=0x" << hex << addr;
193
194        if (flags[PRINT_INT_REGS] && regs_valid) {
195            for (int i = 0; i < TheISA::NumIntRegs;)
196                for (int j = i + 1; i <= j; i++)
197                    ccprintf(outs, "r%02d = %#018x%s", i,
198                            iregs->regs.readReg(i),
199                            ((i == j) ? "\n" : "    "));
200            outs << "\n";
201        }
202
203        if (flags[PRINT_FETCH_SEQ] && fetch_seq_valid)
204            outs << "  FetchSeq=" << dec << fetch_seq;
205
206        if (flags[PRINT_CP_SEQ] && cp_seq_valid)
207            outs << "  CPSeq=" << dec << cp_seq;
208
209        //
210        //  End of line...
211        //
212        outs << endl;
213    }
214}
215
216
217vector<bool> Trace::InstRecord::flags(NUM_BITS);
218string Trace::InstRecord::trace_system;
219
220////////////////////////////////////////////////////////////////////////
221//
222// Parameter space for per-cycle execution address tracing options.
223// Derive from ParamContext so we can override checkParams() function.
224//
225class ExecutionTraceParamContext : public ParamContext
226{
227  public:
228    ExecutionTraceParamContext(const string &_iniSection)
229        : ParamContext(_iniSection)
230        {
231        }
232
233    void checkParams();	// defined at bottom of file
234};
235
236ExecutionTraceParamContext exeTraceParams("exetrace");
237
238Param<bool> exe_trace_spec(&exeTraceParams, "speculative",
239                           "capture speculative instructions", true);
240
241Param<bool> exe_trace_print_cycle(&exeTraceParams, "print_cycle",
242                                  "print cycle number", true);
243Param<bool> exe_trace_print_opclass(&exeTraceParams, "print_opclass",
244                                  "print op class", true);
245Param<bool> exe_trace_print_thread(&exeTraceParams, "print_thread",
246                                  "print thread number", true);
247Param<bool> exe_trace_print_effaddr(&exeTraceParams, "print_effaddr",
248                                  "print effective address", true);
249Param<bool> exe_trace_print_data(&exeTraceParams, "print_data",
250                                  "print result data", true);
251Param<bool> exe_trace_print_iregs(&exeTraceParams, "print_iregs",
252                                  "print all integer regs", false);
253Param<bool> exe_trace_print_fetchseq(&exeTraceParams, "print_fetchseq",
254                                  "print fetch sequence number", false);
255Param<bool> exe_trace_print_cp_seq(&exeTraceParams, "print_cpseq",
256                                  "print correct-path sequence number", false);
257Param<bool> exe_trace_print_reg_delta(&exeTraceParams, "print_reg_delta",
258                                  "print which registers changed to what", false);
259Param<bool> exe_trace_pc_symbol(&exeTraceParams, "pc_symbol",
260                                  "Use symbols for the PC if available", true);
261Param<bool> exe_trace_intel_format(&exeTraceParams, "intel_format",
262                                   "print trace in intel compatible format", false);
263Param<string> exe_trace_system(&exeTraceParams, "trace_system",
264                                   "print trace of which system (client or server)",
265                                   "client");
266
267
268//
269// Helper function for ExecutionTraceParamContext::checkParams() just
270// to get us into the InstRecord namespace
271//
272void
273Trace::InstRecord::setParams()
274{
275    flags[TRACE_MISSPEC]     = exe_trace_spec;
276
277    flags[PRINT_CYCLE]       = exe_trace_print_cycle;
278    flags[PRINT_OP_CLASS]    = exe_trace_print_opclass;
279    flags[PRINT_THREAD_NUM]  = exe_trace_print_thread;
280    flags[PRINT_RESULT_DATA] = exe_trace_print_effaddr;
281    flags[PRINT_EFF_ADDR]    = exe_trace_print_data;
282    flags[PRINT_INT_REGS]    = exe_trace_print_iregs;
283    flags[PRINT_FETCH_SEQ]   = exe_trace_print_fetchseq;
284    flags[PRINT_CP_SEQ]      = exe_trace_print_cp_seq;
285    flags[PRINT_REG_DELTA]   = exe_trace_print_reg_delta;
286    flags[PC_SYMBOL]         = exe_trace_pc_symbol;
287    flags[INTEL_FORMAT]      = exe_trace_intel_format;
288    trace_system	     = exe_trace_system;
289}
290
291void
292ExecutionTraceParamContext::checkParams()
293{
294    Trace::InstRecord::setParams();
295}
296
297