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