1#! /usr/bin/env perl
2# Copyright (c) 2003-2006 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;

--- 19 unchanged lines hidden (view full) ---

28# Authors: Steve Reinhardt
29
30# Script to simplify using rundiff on trace outputs from two
31# invocations of m5.
32#
33# ******Note that you need to enable some trace flags in the args in order
34# to do anything useful!******
35#
36# Script arguments are handled uniformly as follows:
37# - If the argument does not contain a '|' character, it is appended
38# to both command lines.
39# - If the argument has a '|' character in it, the text on either side
40# of the '|' is appended to the respective command lines. Note that
41# you'll have to quote the arg or escape the '|' with a backslash
42# so that the shell doesn't think you're doing a pipe.
43#
44# For example:
45#
46# % tracediff m5.opt --opt1 "--opt2|--opt3" --opt4
47# would compare these two runs:
48# m5.opt --opt1 --opt2 --opt4
49# m5.opt --opt1 --opt3 --opt4
50#
51# If you want to compare two different simulator binaries, put a '|'
52# in the first script argument ("path1/m5.opt|path2/m5.opt"). If you
53# want to add arguments to one run only, just put a '|' in with text
54# only on one side ("--onlyOn1|"). You can do this with multiple
55# arguments together too ("|-a -b -c" adds three args to the second
56# run only).
57#
58
59if (@ARGV < 2) {
60 die "Usage: tracediff \"sim1|sim2\" [common-arg \"arg1|arg2\" ...]\n";
61}
62
63foreach $arg (@ARGV) {
64 @pair = split('\|', $arg, -1); # -1 enables null trailing fields
65 if ($#pair > 0) {
66 push @cmd1, $pair[0];
67 push @cmd2, $pair[1];
68 } else {
69 push @cmd1, $arg;
70 push @cmd2, $arg;
71 }
72}
73
74# First two args are the two simulator binaries to compare
75$sim1 = shift @cmd1;
76$sim2 = shift @cmd2;
77
78# Everything else is a simulator arg.
79$args1 = join(' ', @cmd1);
80$args2 = join(' ', @cmd2);
81
82# Run individual invocations in separate dirs so output and intermediate
83# files (particularly config.py and config.ini) don't conflict.
84$dir1 = "tracediff-$$-1";
85$dir2 = "tracediff-$$-2";
86mkdir($dir1) or die "Can't create dir $dir1\n";
87mkdir($dir2) or die "Can't create dir $dir2\n";
88
89$cmd1 = "$sim1 -d $dir1 $args1 2>&1 |";
90$cmd2 = "$sim2 -d $dir2 $args2 2>&1 |";
91
92# This only works if you have rundiff in your path. I just edit it
93# with an explicit path if necessary.
94$fullcmd = "rundiff '$cmd1' '$cmd2' 2>&1 > tracediff-$$.out";
95
96print "Executing $fullcmd\n";
97system($fullcmd);
98
99
100