projects/linux·blob 04480094 · refs

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1# perf script event handlers, generated by perf script -g python
2# (c) 2010, Tom Zanussi <[email protected]>
3# Licensed under the terms of the GNU GPL License version 2
4#
5# This script tests basic functionality such as flag and symbol
6# strings, common_xxx() calls back into perf, begin, end, unhandled
7# events, etc. Basically, if this script runs successfully and
8# displays expected results, Python scripting support should be ok.
9
10import os
11import sys
12
13sys.path.append(os.environ['PERF_EXEC_PATH'] + \
14 '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
15
16from Core import *
17from perf_trace_context import *
18
19unhandled = autodict()
20
21def trace_begin():
22 print "trace_begin"
23 pass
24
25def trace_end():
26 print_unhandled()
27
28def irq__softirq_entry(event_name, context, common_cpu,
29 common_secs, common_nsecs, common_pid, common_comm,
30 vec):
31 print_header(event_name, common_cpu, common_secs, common_nsecs,
32 common_pid, common_comm)
33
34 print_uncommon(context)
35
36 print "vec=%s\n" % \
37 (symbol_str("irq__softirq_entry", "vec", vec)),
38
39def kmem__kmalloc(event_name, context, common_cpu,
40 common_secs, common_nsecs, common_pid, common_comm,
41 call_site, ptr, bytes_req, bytes_alloc,
42 gfp_flags):
43 print_header(event_name, common_cpu, common_secs, common_nsecs,
44 common_pid, common_comm)
45
46 print_uncommon(context)
47
48 print "call_site=%u, ptr=%u, bytes_req=%u, " \
49 "bytes_alloc=%u, gfp_flags=%s\n" % \
50 (call_site, ptr, bytes_req, bytes_alloc,
51
52 flag_str("kmem__kmalloc", "gfp_flags", gfp_flags)),
53
54def trace_unhandled(event_name, context, event_fields_dict):
55 try:
56 unhandled[event_name] += 1
57 except TypeError:
58 unhandled[event_name] = 1
59
60def print_header(event_name, cpu, secs, nsecs, pid, comm):
61 print "%-20s %5u %05u.%09u %8u %-20s " % \
62 (event_name, cpu, secs, nsecs, pid, comm),
63
64# print trace fields not included in handler args
65def print_uncommon(context):
66 print "common_preempt_count=%d, common_flags=%s, common_lock_depth=%d, " \
67 % (common_pc(context), trace_flag_str(common_flags(context)), \
68 common_lock_depth(context))
69
70def print_unhandled():
71 keys = unhandled.keys()
72 if not keys:
73 return
74
75 print "\nunhandled events:\n\n",
76
77 print "%-40s %10s\n" % ("event", "count"),
78 print "%-40s %10s\n" % ("----------------------------------------", \
79 "-----------"),
80
81 for event_name in keys:
82 print "%-40s %10d\n" % (event_name, unhandled[event_name])