X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=util%2Ftracediff;h=f2377a9993c6ba5f92fe13a3cd31a847987685f0;hb=1345183a89a148bf48110c4559448dd708549252;hp=fac4f0ec0926d4c26f4d73a33edc0aeca9efafe9;hpb=045eac3bdf9a12f64138dbef501b0b77468ac1c5;p=gem5.git

diff --git a/util/tracediff b/util/tracediff
index fac4f0ec0..f2377a999 100755
--- a/util/tracediff
+++ b/util/tracediff
@@ -1,5 +1,5 @@
 #! /usr/bin/env perl
-# Copyright (c) 2003 The Regents of The University of Michigan
+# Copyright (c) 2003-2006 The Regents of The University of Michigan
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -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 --option1" "m5.opt --option2" [common args]
+#
 
 if (@ARGV < 2) {
-    die "Usage: tracediff sim1 sim2 [args...]\n";
+    die "Usage: tracediff sim1 sim2 [--root.trace.flags=X args...]\n";
 }
 
 # First two args are the two simulator binaries to compare
@@ -39,10 +49,17 @@ $sim2 = shift;
 
 # Everything else on the command line is taken to be an m5 argument to
 # be given to both invocations
-$simargs = join(' ', @ARGV);
+$simargs = '"' . join('" "', @ARGV) . '"';
+
+# Run individual invocations in separate dirs so output and intermediate
+# files (particularly config.py and config.ini) don't conflict.
+$dir1 = "tracediff-$$-1";
+$dir2 = "tracediff-$$-2";
+mkdir($dir1) or die "Can't create dir $dir1\n";
+mkdir($dir2) or die "Can't create dir $dir2\n";
 
-$cmd1 = "$sim1 $simargs --stats:file=tracediff-$$-1.stats 2>&1 |";
-$cmd2 = "$sim2 $simargs --stats:file=tracediff-$$-2.stats 2>&1 |";
+$cmd1 = "$sim1 -d $dir1 $simargs 2>&1 |";
+$cmd2 = "$sim2 -d $dir2 $simargs 2>&1 |";
 
 # This only works if you have rundiff in your path.  I just edit it
 # with an explicit path if necessary.