1 files changed, 84 insertions, 0 deletions
diff --git a/tools/perf/scripts/python/check-perf-trace.py b/tools/perf/scripts/python/check-perf-trace.py
new file mode 100644
index 0000000000..d2c2295480
--- /dev/null
+++ b/tools/perf/scripts/python/check-perf-trace.py
@@ -0,0 +1,84 @@
+# 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 os
+import 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 args
+def 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]))