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 "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
  42 using namespace std;
  43
  44
  45 ////////////////////////////////////////////////////////////////////////
  46 //
  47 //  Methods for the InstRecord object
  48 //
  49
  50
  51 void
  52 Trace::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
 155 vector<bool> Trace::InstRecord::flags(NUM_BITS);
 156 string 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 //
 163 class 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
 174 ExecutionTraceParamContext exeTraceParams("exetrace");
 175
 176 Param<bool> exe_trace_spec(&exeTraceParams, "speculative",
 177                            "capture speculative instructions", true);
 178
 179 Param<bool> exe_trace_print_cycle(&exeTraceParams, "print_cycle",
 180                                   "print cycle number", true);
 181 Param<bool> exe_trace_print_opclass(&exeTraceParams, "print_opclass",
 182                                   "print op class", true);
 183 Param<bool> exe_trace_print_thread(&exeTraceParams, "print_thread",
 184                                   "print thread number", true);
 185 Param<bool> exe_trace_print_effaddr(&exeTraceParams, "print_effaddr",
 186                                   "print effective address", true);
 187 Param<bool> exe_trace_print_data(&exeTraceParams, "print_data",
 188                                   "print result data", true);
 189 Param<bool> exe_trace_print_iregs(&exeTraceParams, "print_iregs",
 190                                   "print all integer regs", false);
 191 Param<bool> exe_trace_print_fetchseq(&exeTraceParams, "print_fetchseq",
 192                                   "print fetch sequence number", false);
 193 Param<bool> exe_trace_print_cp_seq(&exeTraceParams, "print_cpseq",
 194                                   "print correct-path sequence number", false);
 195 Param<bool> exe_trace_intel_format(&exeTraceParams, "intel_format",
 196                                    "print trace in intel compatible format", false);
 197 Param<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 //
 206 void
 207 Trace::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
 223 void
 224 ExecutionTraceParamContext::checkParams()
 225 {
 226     Trace::InstRecord::setParams();
 227 }
 228