diff options
Diffstat (limited to 'util')
| -rwxr-xr-x | util/tracediff | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/util/tracediff b/util/tracediff index ed35d5dd7..a95ce8b82 100755 --- a/util/tracediff +++ b/util/tracediff @@ -27,10 +27,20 @@ # # Authors: Steve Reinhardt -# Script to simplify using rundiff on trace outputs from two invocations of m5. +# Script to simplify using rundiff on trace outputs from two +# invocations of m5. +# +# Note that you need to enable some trace flags in the args in order +# to do anything useful! +# +# If you want to pass different arguments to the two instances of m5, +# you can embed them in the simulator arguments like this: +# +# % tracediff "m5.opt --foo:bar=1" "m5.opt --foo:bar=2" [common args] +# if (@ARGV < 2) { - die "Usage: tracediff sim1 sim2 [args...]\n"; + die "Usage: tracediff sim1 sim2 [--trace:flags=X args...]\n"; } # First two args are the two simulator binaries to compare @@ -41,6 +51,10 @@ $sim2 = shift; # be given to both invocations $simargs = '"' . join('" "', @ARGV) . '"'; +# Redirect config output to cout so that gets diffed too (in case +# that's the source of the problem). +$simargs += " --Universe:config_output_file=cout"; + $cmd1 = "$sim1 $simargs --stats:text_file=tracediff-$$-1.stats 2>&1 |"; $cmd2 = "$sim2 $simargs --stats:text_file=tracediff-$$-2.stats 2>&1 |"; |