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
|
# perf trace event handlers, generated by perf trace -g perl
# (c) 2009, Tom Zanussi <tzanussi@gmail.com>
# Licensed under the terms of the GNU GPL License version 2
# This script tests basic functionality such as flag and symbol
# strings, common_xxx() calls back into perf, begin, end, unhandled
# events, etc. Basically, if this script runs successfully and
# displays expected results, perl scripting support should be ok.
use lib "$ENV{'PERF_EXEC_PATH'}/scripts/perl/Perf-Trace-Util/lib";
use lib "./Perf-Trace-Util/lib";
use Perf::Trace::Core;
use Perf::Trace::Context;
use Perf::Trace::Util;
sub trace_begin
{
print "trace_begin\n";
}
sub trace_end
{
print "trace_end\n";
print_unhandled();
}
sub irq::softirq_entry
{
my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
$common_pid, $common_comm,
$vec) = @_;
print_header($event_name, $common_cpu, $common_secs, $common_nsecs,
$common_pid, $common_comm);
print_uncommon($context);
printf("vec=%s\n",
symbol_str("irq::softirq_entry", "vec", $vec));
}
sub kmem::kmalloc
{
my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
$common_pid, $common_comm,
$call_site, $ptr, $bytes_req, $bytes_alloc,
$gfp_flags) = @_;
print_header($event_name, $common_cpu, $common_secs, $common_nsecs,
$common_pid, $common_comm);
print_uncommon($context);
printf("call_site=%p, ptr=%p, bytes_req=%u, bytes_alloc=%u, ".
"gfp_flags=%s\n",
$call_site, $ptr, $bytes_req, $bytes_alloc,
flag_str("kmem::kmalloc", "gfp_flags", $gfp_flags));
}
# print trace fields not included in handler args
sub print_uncommon
{
my ($context) = @_;
printf("common_preempt_count=%d, common_flags=%s, common_lock_depth=%d, ",
common_pc($context), trace_flag_str(common_flags($context)),
common_lock_depth($context));
}
my %unhandled;
sub print_unhandled
{
if ((scalar keys %unhandled) == 0) {
return;
}
print "\nunhandled events:\n\n";
printf("%-40s %10s\n", "event", "count");
printf("%-40s %10s\n", "----------------------------------------",
"-----------");
foreach my $event_name (keys %unhandled) {
printf("%-40s %10d\n", $event_name, $unhandled{$event_name});
}
}
sub trace_unhandled
{
my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
$common_pid, $common_comm) = @_;
$unhandled{$event_name}++;
}
sub print_header
{
my ($event_name, $cpu, $secs, $nsecs, $pid, $comm) = @_;
printf("%-20s %5u %05u.%09u %8u %-20s ",
$event_name, $cpu, $secs, $nsecs, $pid, $comm);
}
|
