Mercurial > pygar

     1 #!/usr/bin/perl -w

     2 #==========================================================================

     3 # bsc-trace.pl

     4 #

     5 # Author : Christopher Batten (cbatten@mit.edu)

     6 # Date   : April 12, 2005

     7 #

     8 (our $usageMsg = <<'ENDMSG') =~ s/^\#//gm;

     9 #

    10 # Simple script which converts bsv "one-per-line" trace output into

    11 # a more compact and readable column format.

    12 #

    13 ENDMSG

    14 

    15 use strict "vars";

    16 use warnings;

    17 no  warnings("once");

    18 use Getopt::Long;

    19 use File::Basename;

    20 

    21 #--------------------------------------------------------------------------

    22 # Command line processing

    23 #--------------------------------------------------------------------------

    24 

    25 our %opts;

    26 

    27 sub usage()

    28 {

    29 

    30   print "\n";

    31   print " Usage: bsc-trace.pl <format-file> [trace-file]\n";

    32   print "\n";

    33   print " Options:\n";

    34   print "  --help        print this message\n";

    35   print "  <format-str>  format string\n";

    36   print "  [trace-file]  output trace from BSV simulation (default is STDIN)\n";

    37   print "$usageMsg";

    38 

    39   exit();

    40 }

    41 

    42 sub processCommandLine()

    43 {

    44 

    45   $opts{"help"}        = 0;

    46 

    47   Getopt::Long::GetOptions( \%opts, 'help|?' ) or usage();

    48 

    49   ($opts{"format"}     = shift(@ARGV)) or usage();

    50   ($opts{"trace-file"} = shift(@ARGV)) or ($opts{"trace-file"} = "-");

    51   $opts{"help"} and usage();

    52 

    53 }

    54 

    55 #--------------------------------------------------------------------------

    56 # Main

    57 #--------------------------------------------------------------------------

    58 

    59 sub main()

    60 {

    61 

    62   processCommandLine();

    63   require $opts{"format"};

    64 

    65   my $cycle = 0;

    66   my %traceHash;

    67 

    68   my $traceFile = $opts{"trace-file"};

    69   open( FIN, "<$traceFile" ) or die("Could not open BSV trace file ($traceFile)!");

    70 

    71   print  "           processor-state [     icache            ]  [     dcache            ]  [    mem-arb   ]  executed-instruction\n";

    72 

    73   my $labelLine = $settings::labelString;

    74   foreach my $tag ( keys %settings::headers){

    75       my $theLabel = $settings::headers{$tag};      

    76       $labelLine =~ s/{$tag}/$theLabel/;

    77   }

    78   print "            $labelLine\n";

    79   

    80   while ( my $line = <FIN> ) {

    81   

    82     if ( $line =~ /^ => Cycle =\s+(\d+)$/ ) {

    83 

    84       my $tempTraceLine = $settings::traceString;

    85       foreach my $tag ( keys %settings::fields ) {

    86 

    87         my $theTraceString = $traceHash{$tag};

    88         my $theEmptyString = $settings::fields{$tag};

    89 

    90         # Substitute the trace field in ...

    91         if ( defined($theTraceString) ) {

    92 

    93           # If the trace string is shorter than the empty string then

    94           # add some spaces at the end so things line up ...

    95           my $theTraceStringLen = length($theTraceString);

    96           my $theEmptyStringLen = length($theEmptyString);

    97           if ( $theTraceStringLen < $theEmptyStringLen ) {

    98             $theTraceString .= (" "x ($theEmptyStringLen-$theTraceStringLen));

    99           }

   100 

   101           $tempTraceLine =~ s/{$tag}/$theTraceString/;

   102 

   103         }

   104 

   105         # Substitute the empty field in ...

   106         else {

   107           $tempTraceLine =~ s/{$tag}/$theEmptyString/;

   108         }

   109 

   110       }

   111 

   112       print " CYC: ".sprintf("%4d",$cycle)."  $tempTraceLine\n";

   113 

   114       $cycle = $1;

   115       %traceHash = ();

   116     }

   117     elsif ( $line =~ /^ => (\S+) (.*)$/ ) {

   118       $traceHash{$1} = $2;

   119     }

   120     else {

   121       print $line;

   122     }

   123 

   124   }

   125   close( FIN );

   126   

   127 }

   128 

   129 main();