# perf script event handlers, generated by perf script -g python# (c) 2010, 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, Python scripting support should be ok. from __future__ import print_function import osimport sys sys.path.append(os.environ['PERF_EXEC_PATH'] + \	'/scripts/python/Perf-Trace-Util/lib/Perf/Trace') from Core import *from perf_trace_context import * unhandled = autodict() def trace_begin():	print("trace_begin")	pass def trace_end():	print_unhandled() def irq__softirq_entry(event_name, context, common_cpu,		       common_secs, common_nsecs, common_pid, common_comm,		       common_callchain, vec):	print_header(event_name, common_cpu, common_secs, common_nsecs,		common_pid, common_comm) 	print_uncommon(context) 	print("vec=%s" % (symbol_str("irq__softirq_entry", "vec", vec))) def kmem__kmalloc(event_name, context, common_cpu,		  common_secs, common_nsecs, common_pid, common_comm,		  common_callchain, 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) 	print("call_site=%u, ptr=%u, bytes_req=%u, "		"bytes_alloc=%u, gfp_flags=%s" %		(call_site, ptr, bytes_req, bytes_alloc,		flag_str("kmem__kmalloc", "gfp_flags", gfp_flags))) def trace_unhandled(event_name, context, event_fields_dict):	try:		unhandled[event_name] += 1	except TypeError:		unhandled[event_name] = 1 def print_header(event_name, cpu, secs, nsecs, pid, comm):	print("%-20s %5u %05u.%09u %8u %-20s " %		(event_name, cpu, secs, nsecs, pid, comm),		end=' ') # print trace fields not included in handler argsdef print_uncommon(context):	print("common_preempt_count=%d, common_flags=%s, "		"common_lock_depth=%d, " %		(common_pc(context), trace_flag_str(common_flags(context)),		common_lock_depth(context))) def print_unhandled():	keys = unhandled.keys()	if not keys:		return 	print("\nunhandled events:\n") 	print("%-40s  %10s" % ("event", "count"))	print("%-40s  %10s" % ("----------------------------------------",				"-----------")) 	for event_name in keys:		print("%-40s  %10d\n" % (event_name, unhandled[event_name]))