mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-15 03:00:30 +00:00
254 lines
7.5 KiB
Perl
Executable File
254 lines
7.5 KiB
Perl
Executable File
#!/usr/bin/perl -w
|
|
#
|
|
# ***** BEGIN LICENSE BLOCK *****
|
|
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
#
|
|
# The contents of this file are subject to the Mozilla Public License Version
|
|
# 1.1 (the "License"); you may not use this file except in compliance with
|
|
# the License. You may obtain a copy of the License at
|
|
# http://www.mozilla.org/MPL/
|
|
#
|
|
# Software distributed under the License is distributed on an "AS IS" basis,
|
|
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
# for the specific language governing rights and limitations under the
|
|
# License.
|
|
#
|
|
# The Original Code is blame.pl, released
|
|
# August 29, 2000.
|
|
#
|
|
# The Initial Developer of the Original Code is
|
|
# Netscape Communications Corporation.
|
|
# Portions created by the Initial Developer are Copyright (C) 2000
|
|
# the Initial Developer. All Rights Reserved.
|
|
#
|
|
# Contributor(s):
|
|
# Chris Waterson <waterson@netscape.com>
|
|
#
|
|
# Alternatively, the contents of this file may be used under the terms of
|
|
# either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
# in which case the provisions of the GPL or the LGPL are applicable instead
|
|
# of those above. If you wish to allow use of your version of this file only
|
|
# under the terms of either the GPL or the LGPL, and not to allow others to
|
|
# use your version of this file under the terms of the MPL, indicate your
|
|
# decision by deleting the provisions above and replace them with the notice
|
|
# and other provisions required by the GPL or the LGPL. If you do not delete
|
|
# the provisions above, a recipient may use your version of this file under
|
|
# the terms of any one of the MPL, the GPL or the LGPL.
|
|
#
|
|
# ***** END LICENSE BLOCK *****
|
|
|
|
#
|
|
# Process output of TraceMallocDumpAllocations() to produce a table
|
|
# that attributes memory to the allocators using call stack.
|
|
#
|
|
|
|
use 5.004;
|
|
use strict;
|
|
|
|
# A table of all ancestors. Key is function name, value is an
|
|
# array of ancestors, each attributed with a number of calls and
|
|
# the amount of memory allocated.
|
|
my %Ancestors;
|
|
|
|
# Ibid, for descendants.
|
|
my %Descendants;
|
|
|
|
# A table that keeps the total amount of memory allocated by each
|
|
# function
|
|
my %Totals;
|
|
$Totals{".root"} = { "#memory#" => 0, "#calls#" => 0 };
|
|
|
|
# A table that maps the long ugly function name to a unique number so
|
|
# that the HTML we generate isn't too fat
|
|
my %Ids;
|
|
my $NextId = 0;
|
|
|
|
$Ids{".root"} = ++$NextId;
|
|
|
|
|
|
LINE: while (<>) {
|
|
# The line'll look like:
|
|
#
|
|
# 0x4000a008 16 PR_Malloc+16; nsMemoryImpl::Alloc(unsigned int)+12; ...
|
|
|
|
# Ignore any lines that don't start with an address
|
|
next LINE unless /^0x/;
|
|
|
|
# Parse it
|
|
my ($address, $size, $rest) = /^(0x\S*)\s*(\d+)\s*(.*)$/;
|
|
my @stack = reverse(split /; /, $rest);
|
|
|
|
# Accumulate at the root
|
|
$Totals{".root"}->{"#memory#"} += $size;
|
|
++$Totals{".root"}->{"#calls#"};
|
|
|
|
my $caller = ".root";
|
|
foreach my $callee (@stack) {
|
|
# Strip the offset from the callsite information. I don't
|
|
# think we care.
|
|
$callee =~ s/\+\d+$//g;
|
|
|
|
# Accumulate the total for the callee
|
|
if (! $Totals{$callee}) {
|
|
$Totals{$callee} = { "#memory#" => 0, "#calls#" => 0 };
|
|
}
|
|
|
|
$Totals{$callee}->{"#memory#"} += $size;
|
|
++$Totals{$callee}->{"#calls#"};
|
|
|
|
# Descendants
|
|
my $descendants = $Descendants{$caller};
|
|
if (! $descendants) {
|
|
$descendants = $Descendants{$caller} = [ ];
|
|
}
|
|
|
|
# Manage the list of descendants
|
|
{
|
|
my $wasInserted = 0;
|
|
DESCENDANT: foreach my $item (@$descendants) {
|
|
if ($item->{"#name#"} eq $callee) {
|
|
$item->{"#memory#"} += $size;
|
|
++$item->{"#calls#"};
|
|
$wasInserted = 1;
|
|
last DESCENDANT;
|
|
}
|
|
}
|
|
|
|
if (! $wasInserted) {
|
|
$descendants->[@$descendants] = {
|
|
"#name#" => $callee,
|
|
"#memory#" => $size,
|
|
"#calls#" => 1
|
|
};
|
|
}
|
|
}
|
|
|
|
# Ancestors
|
|
my $ancestors = $Ancestors{$callee};
|
|
if (! $ancestors) {
|
|
$ancestors = $Ancestors{$callee} = [ ];
|
|
}
|
|
|
|
# Manage the list of ancestors
|
|
{
|
|
my $wasInserted = 0;
|
|
ANCESTOR: foreach my $item (@$ancestors) {
|
|
if ($item->{"#name#"} eq $caller) {
|
|
$item->{"#memory#"} += $size;
|
|
++$item->{"#calls#"};
|
|
$wasInserted = 1;
|
|
last ANCESTOR;
|
|
}
|
|
}
|
|
|
|
if (! $wasInserted) {
|
|
$ancestors->[@$ancestors] = {
|
|
"#name#" => $caller,
|
|
"#memory#" => $size,
|
|
"#calls#" => 1
|
|
};
|
|
}
|
|
}
|
|
|
|
# Make a new "id", if necessary
|
|
if (! $Ids{$callee}) {
|
|
$Ids{$callee} = ++$NextId;
|
|
}
|
|
|
|
# On to the next one...
|
|
$caller = $callee;
|
|
}
|
|
}
|
|
|
|
|
|
# Change the manky looking callsite into a pretty function; strip argument
|
|
# types and offset information.
|
|
sub pretty($) {
|
|
$_ = $_[0];
|
|
s/&/&/g;
|
|
s/</</g;
|
|
s/>/>/g;
|
|
|
|
if (/([^\(]*)(\(.*\))/) {
|
|
return $1 . "()";
|
|
}
|
|
else {
|
|
return $_[0];
|
|
}
|
|
}
|
|
|
|
# Dump a web page!
|
|
print "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\">\n";
|
|
print "<html><head>\n";
|
|
print "<title>Live Bloat Blame</title>\n";
|
|
print "<link rel=\"stylesheet\" type=\"text/css\" href=\"blame.css\">\n";
|
|
print "</head>\n";
|
|
print "<body>\n";
|
|
|
|
# At most 100 rows per table so as not to kill the browser.
|
|
my $maxrows = 100;
|
|
|
|
print "<table>\n";
|
|
print "<thead><tr><td>Function</td><td>Ancestors</td><td>Descendants</td></tr></thead>\n";
|
|
|
|
foreach my $node (sort(keys(%Ids))) {
|
|
print "<tr>\n";
|
|
|
|
# Print the current node
|
|
{
|
|
my ($memory, $calls) =
|
|
($Totals{$node}->{"#memory#"},
|
|
$Totals{$node}->{"#calls#"});
|
|
|
|
my $pretty = pretty($node);
|
|
print " <td><a name=\"$Ids{$node}\">$pretty $memory ($calls)</a></td>\n";
|
|
}
|
|
|
|
# Ancestors, sorted descending by amount of memory allocated
|
|
print " <td>\n";
|
|
my $ancestors = $Ancestors{$node};
|
|
if ($ancestors) {
|
|
foreach my $ancestor (sort { $b->{"#memory#"} <=> $a->{"#memory#"} } @$ancestors) {
|
|
my ($name, $memory, $calls) =
|
|
($ancestor->{"#name#"},
|
|
$ancestor->{"#memory#"},
|
|
$ancestor->{"#calls#"});
|
|
|
|
my $pretty = pretty($name);
|
|
|
|
print " <a href=\"#$Ids{$name}\">$pretty</a> $memory ($calls)<br>\n";
|
|
}
|
|
}
|
|
|
|
print " </td>\n";
|
|
|
|
# Descendants, sorted descending by amount of memory allocated
|
|
print " <td>\n";
|
|
my $descendants = $Descendants{$node};
|
|
if ($descendants) {
|
|
foreach my $descendant (sort { $b->{"#memory#"} <=> $a->{"#memory#"} } @$descendants) {
|
|
my ($name, $memory, $calls) =
|
|
($descendant->{"#name#"},
|
|
$descendant->{"#memory#"},
|
|
$descendant->{"#calls#"});
|
|
|
|
my $pretty = pretty($name);
|
|
|
|
print " <a href=\"#$Ids{$name}\">$pretty</a> $memory ($calls)<br>\n";
|
|
}
|
|
}
|
|
print " </td></tr>\n";
|
|
|
|
if (--$maxrows == 0) {
|
|
print "</table>\n";
|
|
print "<table>\n";
|
|
print "<thead><tr><td>Function</td><td>Ancestors</td><td>Descendants</td></tr></thead>\n";
|
|
$maxrows = 100;
|
|
}
|
|
}
|
|
|
|
# Footer
|
|
print "</table>\n";
|
|
print "</body></html>\n";
|