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executable file 71 lines (63 sloc) 2.479 kb
#!/usr/bin/perl
# Copyright 2007-2011, VMware, Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. Neither the name of VMware, Inc. nor the names of its contributors may
# be used to endorse or promote products derived from this software with
# specific prior written permission.
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS AS IS'' AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
# DAMAGE.
#
# Usage:
# enable (vprobe VMM10Hz (logstr (gueststack)) (logstr "\n"))
# resolve symbols: stacks_resolve.pl symtab.txt < vprobe.out > vprobe1.out
# stacks2dot.pl < vprobe1.out > vprobe.dt
# dot -Tps -o vprobe.ps vprobe.dt
#
sub get_node {
my ($name);
($name) = @_;
if (!defined($nodes{$name})) {
$nodes{$name} = $numNodes;
$numNodes++;
}
return $nodes{$name};
}
print "digraph stacks { size=\"7,10\"\n";
$numNodes = 0;
while (($ln = <STDIN>)) {
chomp($ln);
if ($ln =~ /GUEST,.*/ || $ln =~ /VMM,.*/) {
@calls = split(',', $ln);
for ($i = 1; $i < $#calls; $i++) {
$first = get_node($calls[$i]);
$second = get_node($calls[$i+1]);
$edge = sprintf("n%d -> n%d", $second, $first);
$edges{$edge}++;
}
}
}
# print the nodes
foreach $key (keys %nodes) {
printf("n%d [label=\"%s\"];\n", $nodes{$key}, $key);
}
# print the edges
foreach $key (keys %edges) {
print $key . ";\n";
}
print "}\n";
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