cpu/exetrace.cc

   1 /*
   2  * Copyright (c) 2001-2004 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 void
  52 Trace::InstRecord::dump(ostream &outs)
  53 {
  54
  55     if (flags[PRINT_CYCLE])
  56         ccprintf(outs, "%7d: ", cycle);
  57
  58     outs << cpu->name() << " ";
  59
  60     if (flags[TRACE_MISSPEC])
  61         outs << (misspeculating ? "-" : "+") << " ";
  62
  63     if (flags[PRINT_THREAD_NUM])
  64         outs << "T" << thread << " : ";
  65
  66
  67     std::string sym_str;
  68     Addr sym_addr;
  69     if (debugSymbolTable
  70         && debugSymbolTable->findNearestSymbol(PC, sym_str, sym_addr)) {
  71         if (PC != sym_addr)
  72             sym_str += csprintf("+%d", PC - sym_addr);
  73         outs << "@" << sym_str << " : ";
  74     }
  75     else {
  76         outs << "0x" << hex << PC << " : ";
  77     }
  78
  79     //
  80     //  Print decoded instruction
  81     //
  82
  83 #if defined(__GNUC__) && (__GNUC__ < 3)
  84     // There's a bug in gcc 2.x library that prevents setw()
  85     // from working properly on strings
  86     string mc(staticInst->disassemble(PC, debugSymbolTable));
  87     while (mc.length() < 26)
  88         mc += " ";
  89     outs << mc;
  90 #else
  91     outs << setw(26) << left << staticInst->disassemble(PC, debugSymbolTable);
  92 #endif
  93
  94     outs << " : ";
  95
  96     if (flags[PRINT_OP_CLASS]) {
  97         outs << opClassStrings[staticInst->opClass()] << " : ";
  98     }
  99
 100     if (flags[PRINT_RESULT_DATA] && data_status != DataInvalid) {
 101         outs << " D=";
 102 #if 0
 103         if (data_status == DataDouble)
 104             ccprintf(outs, "%f", data.as_double);
 105         else
 106             ccprintf(outs, "%#018x", data.as_int);
 107 #else
 108         ccprintf(outs, "%#018x", data.as_int);
 109 #endif
 110     }
 111
 112     if (flags[PRINT_EFF_ADDR] && addr_valid)
 113         outs << " A=0x" << hex << addr;
 114
 115     if (flags[PRINT_INT_REGS] && regs_valid) {
 116         for (int i = 0; i < 32;)
 117             for (int j = i + 1; i <= j; i++)
 118                 ccprintf(outs, "r%02d = %#018x%s", i, iregs->regs[i],
 119                          ((i == j) ? "\n" : "    "));
 120         outs << "\n";
 121     }
 122
 123     if (flags[PRINT_FETCH_SEQ] && fetch_seq_valid)
 124         outs << "  FetchSeq=" << dec << fetch_seq;
 125
 126     if (flags[PRINT_CP_SEQ] && cp_seq_valid)
 127         outs << "  CPSeq=" << dec << cp_seq;
 128
 129     //
 130     //  End of line...
 131     //
 132     outs << endl;
 133 }
 134
 135
 136 vector<bool> Trace::InstRecord::flags(NUM_BITS);
 137
 138 ////////////////////////////////////////////////////////////////////////
 139 //
 140 // Parameter space for per-cycle execution address tracing options.
 141 // Derive from ParamContext so we can override checkParams() function.
 142 //
 143 class ExecutionTraceParamContext : public ParamContext
 144 {
 145   public:
 146     ExecutionTraceParamContext(const string &_iniSection)
 147         : ParamContext(_iniSection)
 148         {
 149         }
 150
 151     void checkParams(); // defined at bottom of file
 152 };
 153
 154 ExecutionTraceParamContext exeTraceParams("exetrace");
 155
 156 Param<bool> exe_trace_spec(&exeTraceParams, "speculative",
 157                            "capture speculative instructions", true);
 158
 159 Param<bool> exe_trace_print_cycle(&exeTraceParams, "print_cycle",
 160                                   "print cycle number", true);
 161 Param<bool> exe_trace_print_opclass(&exeTraceParams, "print_opclass",
 162                                   "print op class", true);
 163 Param<bool> exe_trace_print_thread(&exeTraceParams, "print_thread",
 164                                   "print thread number", true);
 165 Param<bool> exe_trace_print_effaddr(&exeTraceParams, "print_effaddr",
 166                                   "print effective address", true);
 167 Param<bool> exe_trace_print_data(&exeTraceParams, "print_data",
 168                                   "print result data", true);
 169 Param<bool> exe_trace_print_iregs(&exeTraceParams, "print_iregs",
 170                                   "print all integer regs", false);
 171 Param<bool> exe_trace_print_fetchseq(&exeTraceParams, "print_fetchseq",
 172                                   "print fetch sequence number", false);
 173 Param<bool> exe_trace_print_cp_seq(&exeTraceParams, "print_cpseq",
 174                                   "print correct-path sequence number", false);
 175
 176 //
 177 // Helper function for ExecutionTraceParamContext::checkParams() just
 178 // to get us into the InstRecord namespace
 179 //
 180 void
 181 Trace::InstRecord::setParams()
 182 {
 183     flags[TRACE_MISSPEC]     = exe_trace_spec;
 184
 185     flags[PRINT_CYCLE]       = exe_trace_print_cycle;
 186     flags[PRINT_OP_CLASS]    = exe_trace_print_opclass;
 187     flags[PRINT_THREAD_NUM]  = exe_trace_print_thread;
 188     flags[PRINT_RESULT_DATA] = exe_trace_print_effaddr;
 189     flags[PRINT_EFF_ADDR]    = exe_trace_print_data;
 190     flags[PRINT_INT_REGS]    = exe_trace_print_iregs;
 191     flags[PRINT_FETCH_SEQ]   = exe_trace_print_fetchseq;
 192     flags[PRINT_CP_SEQ]      = exe_trace_print_cp_seq;
 193 }
 194
 195 void
 196 ExecutionTraceParamContext::checkParams()
 197 {
 198     Trace::InstRecord::setParams();
 199 }
 200