--- /dev/null
+#!/usr/bin/perl
+# Copyright (C) 2013 Red Hat, Inc.
+#
+# Authors:
+# Markus Armbruster <armbru@redhat.com>
+#
+# This work is licensed under the terms of the GNU GPL, version 2 or
+# later. See the COPYING file in the top-level directory.
+
+# Usage: cleanup-trace-events.pl trace-events
+#
+# Print cleaned up trace-events to standard output.
+
+use warnings;
+use strict;
+
+my $buf = '';
+my %seen = ();
+
+sub out {
+ print $buf;
+ $buf = '';
+ %seen = ();
+}
+
+while (<>) {
+ if (/^(disable )?([a-z_0-9]+)\(/) {
+ open GREP, '-|', 'git', 'grep', '-l', "trace_$2"
+ or die "run git grep: $!";
+ my $fname;
+ while ($fname = <GREP>) {
+ chomp $fname;
+ next if $seen{$fname} || $fname eq 'trace-events';
+ $seen{$fname} = 1;
+ $buf = "# $fname\n" . $buf;
+ }
+ unless (close GREP) {
+ die "close git grep: $!"
+ if $!;
+ next;
+ }
+ } elsif (/^# ([^ ]*\.[ch])$/) {
+ out;
+ next;
+ } elsif (!/^#|^$/) {
+ warn "unintelligible line";
+ }
+ $buf .= $_;
+}
+
+out;