cpu/exetrace.cc

   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 "cpu/exetrace.hh"
  34 #include "cpu/exec_context.hh"
  35 #include "base/loader/symtab.hh"
  36 #include "cpu/base.hh"
  37 #include "cpu/static_inst.hh"
  38
  39 using namespace std;
  40
  41
  42 ////////////////////////////////////////////////////////////////////////
  43 //
  44 //  Methods for the InstRecord object
  45 //
  46
  47
  48 void
  49 Trace::InstRecord::dump(ostream &outs)
  50 {
  51     if (flags[INTEL_FORMAT]) {
  52 #if FULL_SYSTEM
  53         bool is_trace_system = (cpu->system->name() == trace_system);
  54 #else
  55         bool is_trace_system = true;
  56 #endif
  57         if (is_trace_system) {
  58             ccprintf(outs, "%7d ) ", cycle);
  59             outs << "0x" << hex << PC << ":\t";
  60             if (staticInst->isLoad()) {
  61                 outs << "<RD 0x" << hex << addr;
  62                 outs << ">";
  63             } else if (staticInst->isStore()) {
  64                 outs << "<WR 0x" << hex << addr;
  65                 outs << ">";
  66             }
  67             outs << endl;
  68         }
  69     } else {
  70         if (flags[PRINT_CYCLE])
  71             ccprintf(outs, "%7d: ", cycle);
  72
  73         outs << cpu->name() << " ";
  74
  75         if (flags[TRACE_MISSPEC])
  76             outs << (misspeculating ? "-" : "+") << " ";
  77
  78         if (flags[PRINT_THREAD_NUM])
  79             outs << "T" << thread << " : ";
  80
  81
  82         std::string sym_str;
  83         Addr sym_addr;
  84         if (debugSymbolTable
  85             && debugSymbolTable->findNearestSymbol(PC, sym_str, sym_addr)) {
  86             if (PC != sym_addr)
  87                 sym_str += csprintf("+%d", PC - sym_addr);
  88             outs << "@" << sym_str << " : ";
  89         }
  90         else {
  91             outs << "0x" << hex << PC << " : ";
  92         }
  93
  94         //
  95         //  Print decoded instruction
  96         //
  97
  98 #if defined(__GNUC__) && (__GNUC__ < 3)
  99         // There's a bug in gcc 2.x library that prevents setw()
 100         // from working properly on strings
 101         string mc(staticInst->disassemble(PC, debugSymbolTable));
 102         while (mc.length() < 26)
 103             mc += " ";
 104         outs << mc;
 105 #else
 106         outs << setw(26) << left << staticInst->disassemble(PC, debugSymbolTable);
 107 #endif
 108
 109         outs << " : ";
 110
 111         if (flags[PRINT_OP_CLASS]) {
 112             outs << opClassStrings[staticInst->opClass()] << " : ";
 113         }
 114
 115         if (flags[PRINT_RESULT_DATA] && data_status != DataInvalid) {
 116             outs << " D=";
 117 #if 0
 118             if (data_status == DataDouble)
 119                 ccprintf(outs, "%f", data.as_double);
 120             else
 121                 ccprintf(outs, "%#018x", data.as_int);
 122 #else
 123             ccprintf(outs, "%#018x", data.as_int);
 124 #endif
 125         }
 126
 127         if (flags[PRINT_EFF_ADDR] && addr_valid)
 128             outs << " A=0x" << hex << addr;
 129
 130         if (flags[PRINT_INT_REGS] && regs_valid) {
 131             for (int i = 0; i < 32;)
 132                 for (int j = i + 1; i <= j; i++)
 133                     ccprintf(outs, "r%02d = %#018x%s", i, iregs->regs[i],
 134                              ((i == j) ? "\n" : "    "));
 135             outs << "\n";
 136         }
 137
 138         if (flags[PRINT_FETCH_SEQ] && fetch_seq_valid)
 139             outs << "  FetchSeq=" << dec << fetch_seq;
 140
 141         if (flags[PRINT_CP_SEQ] && cp_seq_valid)
 142             outs << "  CPSeq=" << dec << cp_seq;
 143
 144         //
 145         //  End of line...
 146         //
 147         outs << endl;
 148     }
 149 }
 150
 151
 152 vector<bool> Trace::InstRecord::flags(NUM_BITS);
 153 string Trace::InstRecord::trace_system;
 154
 155 ////////////////////////////////////////////////////////////////////////
 156 //
 157 // Parameter space for per-cycle execution address tracing options.
 158 // Derive from ParamContext so we can override checkParams() function.
 159 //
 160 class ExecutionTraceParamContext : public ParamContext
 161 {
 162   public:
 163     ExecutionTraceParamContext(const string &_iniSection)
 164         : ParamContext(_iniSection)
 165         {
 166         }
 167
 168     void checkParams(); // defined at bottom of file
 169 };
 170
 171 ExecutionTraceParamContext exeTraceParams("exetrace");
 172
 173 Param<bool> exe_trace_spec(&exeTraceParams, "speculative",
 174                            "capture speculative instructions", true);
 175
 176 Param<bool> exe_trace_print_cycle(&exeTraceParams, "print_cycle",
 177                                   "print cycle number", true);
 178 Param<bool> exe_trace_print_opclass(&exeTraceParams, "print_opclass",
 179                                   "print op class", true);
 180 Param<bool> exe_trace_print_thread(&exeTraceParams, "print_thread",
 181                                   "print thread number", true);
 182 Param<bool> exe_trace_print_effaddr(&exeTraceParams, "print_effaddr",
 183                                   "print effective address", true);
 184 Param<bool> exe_trace_print_data(&exeTraceParams, "print_data",
 185                                   "print result data", true);
 186 Param<bool> exe_trace_print_iregs(&exeTraceParams, "print_iregs",
 187                                   "print all integer regs", false);
 188 Param<bool> exe_trace_print_fetchseq(&exeTraceParams, "print_fetchseq",
 189                                   "print fetch sequence number", false);
 190 Param<bool> exe_trace_print_cp_seq(&exeTraceParams, "print_cpseq",
 191                                   "print correct-path sequence number", false);
 192 Param<bool> exe_trace_intel_format(&exeTraceParams, "intel_format",
 193                                    "print trace in intel compatible format", false);
 194 Param<string> exe_trace_system(&exeTraceParams, "trace_system",
 195                                    "print trace of which system (client or server)",
 196                                    "client");
 197
 198
 199 //
 200 // Helper function for ExecutionTraceParamContext::checkParams() just
 201 // to get us into the InstRecord namespace
 202 //
 203 void
 204 Trace::InstRecord::setParams()
 205 {
 206     flags[TRACE_MISSPEC]     = exe_trace_spec;
 207
 208     flags[PRINT_CYCLE]       = exe_trace_print_cycle;
 209     flags[PRINT_OP_CLASS]    = exe_trace_print_opclass;
 210     flags[PRINT_THREAD_NUM]  = exe_trace_print_thread;
 211     flags[PRINT_RESULT_DATA] = exe_trace_print_effaddr;
 212     flags[PRINT_EFF_ADDR]    = exe_trace_print_data;
 213     flags[PRINT_INT_REGS]    = exe_trace_print_iregs;
 214     flags[PRINT_FETCH_SEQ]   = exe_trace_print_fetchseq;
 215     flags[PRINT_CP_SEQ]      = exe_trace_print_cp_seq;
 216     flags[INTEL_FORMAT]      = exe_trace_intel_format;
 217     trace_system             = exe_trace_system;
 218 }
 219
 220 void
 221 ExecutionTraceParamContext::checkParams()
 222 {
 223     Trace::InstRecord::setParams();
 224 }
 225