cpu/exetrace.cc

   1 /*
   2  * Copyright (c) 2003 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/full_cpu/dyn_inst.hh"
  34 #include "cpu/full_cpu/spec_state.hh"
  35 #include "cpu/full_cpu/issue.hh"
  36 #include "cpu/exetrace.hh"
  37 #include "cpu/exec_context.hh"
  38 #include "base/loader/symtab.hh"
  39 #include "cpu/base_cpu.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 SymbolTable *debugSymbolTable = NULL;
  52
  53 void
  54 Trace::InstRecord::dump(ostream &outs)
  55 {
  56
  57     if (flags[PRINT_CYCLE])
  58         ccprintf(outs, "%7d: ", cycle);
  59
  60     outs << cpu->name() << " ";
  61
  62     if (flags[TRACE_MISSPEC])
  63         outs << (misspeculating ? "-" : "+") << " ";
  64
  65     if (flags[PRINT_THREAD_NUM])
  66         outs << "T" << thread << " : ";
  67
  68
  69     std::string str;
  70     if ((debugSymbolTable) && (debugSymbolTable->findNearestSymbol(PC, str)))
  71         outs << "@" << setw(17) << str << " : ";
  72     else
  73         outs << "0x" << hex << PC << " : ";
  74
  75     //
  76     //  Print decoded instruction
  77     //
  78
  79 #if defined(__GNUC__) && (__GNUC__ < 3)
  80     // There's a bug in gcc 2.x library that prevents setw()
  81     // from working properly on strings
  82     string mc(staticInst->disassemble(PC, debugSymbolTable));
  83     while (mc.length() < 26)
  84         mc += " ";
  85     outs << mc;
  86 #else
  87     outs << setw(26) << left << staticInst->disassemble(PC, debugSymbolTable);
  88 #endif
  89
  90     outs << " : ";
  91
  92     if (flags[PRINT_OP_CLASS]) {
  93         outs << opClassStrings[staticInst->opClass()] << " : ";
  94     }
  95
  96     if (flags[PRINT_RESULT_DATA] && data_status != DataInvalid) {
  97         outs << " D=";
  98 #if 0
  99         if (data_status == DataDouble)
 100             ccprintf(outs, "%f", data.as_double);
 101         else
 102             ccprintf(outs, "%#018x", data.as_int);
 103 #else
 104         ccprintf(outs, "%#018x", data.as_int);
 105 #endif
 106     }
 107
 108     if (flags[PRINT_EFF_ADDR] && addr_valid)
 109         outs << " A=0x" << hex << addr;
 110
 111     if (flags[PRINT_INT_REGS] && regs_valid) {
 112         for (int i = 0; i < 32;)
 113             for (int j = i + 1; i <= j; i++)
 114                 ccprintf(outs, "r%02d = %#018x%s", i, iregs->regs[i],
 115                          ((i == j) ? "\n" : "    "));
 116         outs << "\n";
 117     }
 118
 119     if (flags[PRINT_FETCH_SEQ] && fetch_seq_valid)
 120         outs << "  FetchSeq=" << dec << fetch_seq;
 121
 122     if (flags[PRINT_CP_SEQ] && cp_seq_valid)
 123         outs << "  CPSeq=" << dec << cp_seq;
 124
 125     //
 126     //  End of line...
 127     //
 128     outs << endl;
 129 }
 130
 131
 132 vector<bool> Trace::InstRecord::flags(NUM_BITS);
 133
 134 ////////////////////////////////////////////////////////////////////////
 135 //
 136 // Parameter space for per-cycle execution address tracing options.
 137 // Derive from ParamContext so we can override checkParams() function.
 138 //
 139 class ExecutionTraceParamContext : public ParamContext
 140 {
 141   public:
 142     ExecutionTraceParamContext(const string &_iniSection)
 143         : ParamContext(_iniSection)
 144         {
 145         }
 146
 147     void checkParams(); // defined at bottom of file
 148 };
 149
 150 ExecutionTraceParamContext exeTraceParams("exetrace");
 151
 152 Param<bool> exe_trace_spec(&exeTraceParams, "speculative",
 153                            "capture speculative instructions", false);
 154
 155 Param<bool> exe_trace_print_cycle(&exeTraceParams, "print_cycle",
 156                                   "print cycle number", true);
 157 Param<bool> exe_trace_print_opclass(&exeTraceParams, "print_opclass",
 158                                   "print op class", true);
 159 Param<bool> exe_trace_print_thread(&exeTraceParams, "print_thread",
 160                                   "print thread number", true);
 161 Param<bool> exe_trace_print_effaddr(&exeTraceParams, "print_effaddr",
 162                                   "print effective address", true);
 163 Param<bool> exe_trace_print_data(&exeTraceParams, "print_data",
 164                                   "print result data", true);
 165 Param<bool> exe_trace_print_iregs(&exeTraceParams, "print_iregs",
 166                                   "print all integer regs", false);
 167 Param<bool> exe_trace_print_fetchseq(&exeTraceParams, "print_fetchseq",
 168                                   "print fetch sequence number", false);
 169 Param<bool> exe_trace_print_cp_seq(&exeTraceParams, "print_cpseq",
 170                                   "print correct-path sequence number", false);
 171
 172 //
 173 // Helper function for ExecutionTraceParamContext::checkParams() just
 174 // to get us into the InstRecord namespace
 175 //
 176 void
 177 Trace::InstRecord::setParams()
 178 {
 179     flags[TRACE_MISSPEC]     = exe_trace_spec;
 180
 181     flags[PRINT_CYCLE]       = exe_trace_print_cycle;
 182     flags[PRINT_OP_CLASS]    = exe_trace_print_opclass;
 183     flags[PRINT_THREAD_NUM]  = exe_trace_print_thread;
 184     flags[PRINT_RESULT_DATA] = exe_trace_print_effaddr;
 185     flags[PRINT_EFF_ADDR]    = exe_trace_print_data;
 186     flags[PRINT_INT_REGS]    = exe_trace_print_iregs;
 187     flags[PRINT_FETCH_SEQ]   = exe_trace_print_fetchseq;
 188     flags[PRINT_CP_SEQ]      = exe_trace_print_cp_seq;
 189 }
 190
 191 void
 192 ExecutionTraceParamContext::checkParams()
 193 {
 194     Trace::InstRecord::setParams();
 195 }
 196