/usr/share/perf_3.16-core/scripts/perl/Perf-Trace-Util/lib/Perf/Trace/Core.pm is in linux-tools-3.16 3.16.56-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 | package Perf::Trace::Core;
use 5.010000;
use strict;
use warnings;
require Exporter;
our @ISA = qw(Exporter);
our %EXPORT_TAGS = ( 'all' => [ qw(
) ] );
our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } );
our @EXPORT = qw(
define_flag_field define_flag_value flag_str dump_flag_fields
define_symbolic_field define_symbolic_value symbol_str dump_symbolic_fields
trace_flag_str
);
our $VERSION = '0.01';
my %trace_flags = (0x00 => "NONE",
0x01 => "IRQS_OFF",
0x02 => "IRQS_NOSUPPORT",
0x04 => "NEED_RESCHED",
0x08 => "HARDIRQ",
0x10 => "SOFTIRQ");
sub trace_flag_str
{
my ($value) = @_;
my $string;
my $print_delim = 0;
foreach my $idx (sort {$a <=> $b} keys %trace_flags) {
if (!$value && !$idx) {
$string .= "NONE";
last;
}
if ($idx && ($value & $idx) == $idx) {
if ($print_delim) {
$string .= " | ";
}
$string .= "$trace_flags{$idx}";
$print_delim = 1;
$value &= ~$idx;
}
}
return $string;
}
my %flag_fields;
my %symbolic_fields;
sub flag_str
{
my ($event_name, $field_name, $value) = @_;
my $string;
if ($flag_fields{$event_name}{$field_name}) {
my $print_delim = 0;
foreach my $idx (sort {$a <=> $b} keys %{$flag_fields{$event_name}{$field_name}{"values"}}) {
if (!$value && !$idx) {
$string .= "$flag_fields{$event_name}{$field_name}{'values'}{$idx}";
last;
}
if ($idx && ($value & $idx) == $idx) {
if ($print_delim && $flag_fields{$event_name}{$field_name}{'delim'}) {
$string .= " $flag_fields{$event_name}{$field_name}{'delim'} ";
}
$string .= "$flag_fields{$event_name}{$field_name}{'values'}{$idx}";
$print_delim = 1;
$value &= ~$idx;
}
}
}
return $string;
}
sub define_flag_field
{
my ($event_name, $field_name, $delim) = @_;
$flag_fields{$event_name}{$field_name}{"delim"} = $delim;
}
sub define_flag_value
{
my ($event_name, $field_name, $value, $field_str) = @_;
$flag_fields{$event_name}{$field_name}{"values"}{$value} = $field_str;
}
sub dump_flag_fields
{
for my $event (keys %flag_fields) {
print "event $event:\n";
for my $field (keys %{$flag_fields{$event}}) {
print " field: $field:\n";
print " delim: $flag_fields{$event}{$field}{'delim'}\n";
foreach my $idx (sort {$a <=> $b} keys %{$flag_fields{$event}{$field}{"values"}}) {
print " value $idx: $flag_fields{$event}{$field}{'values'}{$idx}\n";
}
}
}
}
sub symbol_str
{
my ($event_name, $field_name, $value) = @_;
if ($symbolic_fields{$event_name}{$field_name}) {
foreach my $idx (sort {$a <=> $b} keys %{$symbolic_fields{$event_name}{$field_name}{"values"}}) {
if (!$value && !$idx) {
return "$symbolic_fields{$event_name}{$field_name}{'values'}{$idx}";
last;
}
if ($value == $idx) {
return "$symbolic_fields{$event_name}{$field_name}{'values'}{$idx}";
}
}
}
return undef;
}
sub define_symbolic_field
{
my ($event_name, $field_name) = @_;
# nothing to do, really
}
sub define_symbolic_value
{
my ($event_name, $field_name, $value, $field_str) = @_;
$symbolic_fields{$event_name}{$field_name}{"values"}{$value} = $field_str;
}
sub dump_symbolic_fields
{
for my $event (keys %symbolic_fields) {
print "event $event:\n";
for my $field (keys %{$symbolic_fields{$event}}) {
print " field: $field:\n";
foreach my $idx (sort {$a <=> $b} keys %{$symbolic_fields{$event}{$field}{"values"}}) {
print " value $idx: $symbolic_fields{$event}{$field}{'values'}{$idx}\n";
}
}
}
}
1;
__END__
=head1 NAME
Perf::Trace::Core - Perl extension for perf script
=head1 SYNOPSIS
use Perf::Trace::Core
=head1 SEE ALSO
Perf (script) documentation
=head1 AUTHOR
Tom Zanussi, E<lt>tzanussi@gmail.com<gt>
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2009 by Tom Zanussi
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version 5.10.0 or,
at your option, any later version of Perl 5 you may have available.
Alternatively, this software may be distributed under the terms of the
GNU General Public License ("GPL") version 2 as published by the Free
Software Foundation.
=cut
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