MCL/sf/mw/web: comparison webengine/osswebengine/WebKitTools/Scripts/run-leaks

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--1:000000000000
+:dd21522fd290
+#!/usr/bin/perl
+# Copyright (C) 2007 Apple 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 Apple Computer, Inc. ("Apple") nor the names of
+#     its contributors may be used to endorse or promote products derived
+#     from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS 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 APPLE OR ITS 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.
+# Script to run the Mac OS X leaks tool with more expressive '-exclude' lists.
+use strict;
+use warnings;
+use File::Basename;
+use Getopt::Long;
+sub runLeaks($);
+sub parseLeaksOutput(\@);
+sub removeMatchingRecords(\@$\@);
+sub reportError($);
+sub main()
+{
+# Read options.
+my $usage =
+"Usage: " . basename($0) . " [options] pid | executable name\n" .
+"  --exclude-callstack regexp   Exclude leaks whose call stacks match the regular expression 'regexp'.\n" .
+"  --exclude-type regexp        Exclude leaks whose data types match the regular expression 'regexp'.\n" .
+"  --help                       Show this help message.\n";
+my @callStacksToExclude = ();
+my @typesToExclude = ();
+my $help = 0;
+my $getOptionsResult = GetOptions(
+'exclude-callstack:s' => \@callStacksToExclude,
+'exclude-type:s' => \@typesToExclude,
+'help' => \$help
+);
+my $pidOrExecutableName = $ARGV[0];
+if (!$getOptionsResult || $help) {
+print STDERR $usage;
+return 1;
+}
+if (!$pidOrExecutableName) {
+reportError("Missing argument: pid | executable.");
+print STDERR $usage;
+return 1;
+}
+# Run leaks tool.
+my $leaksOutput = runLeaks($pidOrExecutableName);
+if (!$leaksOutput) {
+return 1;
+}
+my $leakList = parseLeaksOutput(@$leaksOutput);
+if (!$leakList) {
+return 1;
+}
+# Filter output.
+my $leakCount = @$leakList;
+removeMatchingRecords(@$leakList, "callStack", @callStacksToExclude);
+removeMatchingRecords(@$leakList, "type", @typesToExclude);
+my $excludeCount = $leakCount - @$leakList;
+# Dump results.
+print $leaksOutput->[0];
+print $leaksOutput->[1];
+foreach my $leak (@$leakList) {
+print $leak->{"leaksOutput"};
+}
+if ($excludeCount) {
+print "$excludeCount leaks excluded (not printed)\n";
+}
+return 0;
+}
+exit(main());
+# Returns the output of the leaks tool in list form.
+sub runLeaks($)
+{
+my ($pidOrExecutableName) = @_;
+my @leaksOutput = `leaks $pidOrExecutableName`;
+if (!@leaksOutput) {
+reportError("Error running leaks tool.");
+return;
+}
+return \@leaksOutput;
+}
+# Returns a list of hash references with the keys { address, size, type, callStack, leaksOutput }
+sub parseLeaksOutput(\@)
+{
+my ($leaksOutput) = @_;
+# Format:
+#   Process 00000: 1234 nodes malloced for 1234 KB
+#   Process 00000: XX leaks for XXX total leaked bytes.
+#   Leak: 0x00000000 size=1234 [instance of 'blah']
+#       0x00000000 0x00000000 0x00000000 0x00000000 a..d.e.e
+#       ...
+#       Call stack: leak_caller() | leak() | malloc
+#
+#   We treat every line except for  Process 00000: and Leak: as optional
+my ($leakCount) = ($leaksOutput->[1] =~ /[[:blank:]]+([0-9]+)[[:blank:]]+leaks?/);
+if (!defined($leakCount)) {
+reportError("Could not parse leak count reported by leaks tool.");
+return;
+}
+my @leakList = ();
+for my $line (@$leaksOutput) {
+next if $line =~ /^Process/;
+next if $line =~ /^node buffer added/;
+if ($line =~ /^Leak: /) {
+my ($address) = ($line =~ /Leak: ([[:xdigit:]x]+)/);
+if (!defined($address)) {
+reportError("Could not parse Leak address.");
+return;
+}
+my ($size) = ($line =~ /size=([[:digit:]]+)/);
+if (!defined($size)) {
+reportError("Could not parse Leak size.");
+return;
+}
+my ($type) = ($line =~ /'([^']+)'/); #'
+if (!defined($type)) {
+$type = ""; # The leaks tool sometimes omits the type.
+}
+my %leak = (
+"address" => $address,
+"size" => $size,
+"type" => $type,
+"callStack" => "", # The leaks tool sometimes omits the call stack.
+"leaksOutput" => $line
+);
+push(@leakList, \%leak);
+} else {
+$leakList[$#leakList]->{"leaksOutput"} .= $line;
+if ($line =~ /Call stack:/) {
+$leakList[$#leakList]->{"callStack"} = $line;
+}
+}
+}
+if (@leakList != $leakCount) {
+my $parsedLeakCount = @leakList;
+reportError("Parsed leak count($parsedLeakCount) does not match leak count reported by leaks tool($leakCount).");
+return;
+}
+return \@leakList;
+}
+sub removeMatchingRecords(\@$\@)
+{
+my ($recordList, $key, $regexpList) = @_;
+RECORD: for (my $i = 0; $i < @$recordList;) {
+my $record = $recordList->[$i];
+foreach my $regexp (@$regexpList) {
+if ($record->{$key} =~ $regexp) {
+splice(@$recordList, $i, 1);
+next RECORD;
+}
+}
+$i++;
+}
+}
+sub reportError($)
+{
+my ($errorMessage) = @_;
+print STDERR basename($0) . ": $errorMessage\n";
+}