1# perf trace event handlers, generated by perf trace -g python 2# (c) 2010, Tom Zanussi <tzanussi@gmail.com> 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, common_cpu, common_secs, common_nsecs, 55 common_pid, common_comm): 56 try: 57 unhandled[event_name] += 1 58 except TypeError: 59 unhandled[event_name] = 1 60 61def print_header(event_name, cpu, secs, nsecs, pid, comm): 62 print "%-20s %5u %05u.%09u %8u %-20s " % \ 63 (event_name, cpu, secs, nsecs, pid, comm), 64 65# print trace fields not included in handler args 66def print_uncommon(context): 67 print "common_preempt_count=%d, common_flags=%s, common_lock_depth=%d, " \ 68 % (common_pc(context), trace_flag_str(common_flags(context)), \ 69 common_lock_depth(context)) 70 71def print_unhandled(): 72 keys = unhandled.keys() 73 if not keys: 74 return 75 76 print "\nunhandled events:\n\n", 77 78 print "%-40s %10s\n" % ("event", "count"), 79 print "%-40s %10s\n" % ("----------------------------------------", \ 80 "-----------"), 81 82 for event_name in keys: 83 print "%-40s %10d\n" % (event_name, unhandled[event_name]) 84