v4.19.13 snapshot.
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 0000000..334599c
--- /dev/null
+++ b/tools/perf/scripts/python/check-perf-trace.py
@@ -0,0 +1,82 @@
+# 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 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\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 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\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])