tools/rb/filter-log.pl
author Vaibhav Agrawal <vaibhavmagarwal@gmail.com>
Mon, 23 Jun 2014 11:24:00 +0200
changeset 190407 9dea6aefe2f7ca2cb424d62eb2e5c1fc1e57a70d
parent 94475 f4157e8c410708d76703f19e4dfb61859bfe32d8
permissions -rwxr-xr-x
Bug 925699 - pymake/mach mochitest-plain don't delete the temporary profile. r=jmaher

#!/usr/bin/perl -w
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

# Filter a refcount log to show only the entries for a single object.
# Useful when manually examining refcount logs containing multiple
# objects.

use 5.004;
use strict;
use Getopt::Long;

GetOptions("object=s");

$::opt_object ||
     die qq{
usage: filter-log-for.pl < logfile
  --object <obj>         The address of the object to examine (required)
};

warn "object $::opt_object\n";

LINE: while (<>) {
    next LINE if (! /^</);
    my $line = $_;
    my @fields = split(/ /, $_);

    my $class = shift(@fields);
    my $obj   = shift(@fields);
    next LINE unless ($obj eq $::opt_object);
    my $sno   = shift(@fields);
    my $op  = shift(@fields);
    my $cnt = shift(@fields);

    print $line;

    # The lines in the stack trace
    CALLSITE: while (<>) {
        print;
        last CALLSITE if (/^$/);
    }
}