# 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. 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\n" % \		(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\n" % \		(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), # 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\n",     print "%-40s  %10s\n" % ("event", "count"),    print "%-40s  %10s\n" % ("----------------------------------------", \                                 "-----------"),     for event_name in keys:	print "%-40s  %10d\n" % (event_name, unhandled[event_name])