From: "Steven Rostedt (Google)" <rost...@goodmis.org>
There's no example code that uses __string_len(), and since the sample
code is used for testing the event logic, add a use case.
Signed-off-by: Steven Rostedt (Google) <rost...@goodmis.org>
---
samples/trace_events/trace-events-sample.h | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/samples/trace_events/trace-events-sample.h
b/samples/trace_events/trace-events-sample.h
index f2d2d56ce8e2..2dfaf7fc7bfa 100644
--- a/samples/trace_events/trace-events-sample.h
+++ b/samples/trace_events/trace-events-sample.h
@@ -303,6 +303,7 @@ TRACE_EVENT(foo_bar,
__bitmask( cpus, num_possible_cpus() )
__cpumask( cpum )
__vstring( vstr, fmt, va )
+ __string_len( lstr, foo, bar / 2 < strlen(foo) ? bar / 2
: strlen(foo) )
),
TP_fast_assign(
@@ -311,12 +312,13 @@ TRACE_EVENT(foo_bar,
memcpy(__get_dynamic_array(list), lst,
__length_of(lst) * sizeof(int));
__assign_str(str, string);
+ __assign_str(lstr, foo);
__assign_vstr(vstr, fmt, va);
__assign_bitmask(cpus, cpumask_bits(mask), num_possible_cpus());
__assign_cpumask(cpum, cpumask_bits(mask));
),
- TP_printk("foo %s %d %s %s %s %s (%s) (%s) %s", __entry->foo,
__entry->bar,
+ TP_printk("foo %s %d %s %s %s %s %s (%s) (%s) %s", __entry->foo,
__entry->bar,
/*
* Notice here the use of some helper functions. This includes:
@@ -360,7 +362,8 @@ TRACE_EVENT(foo_bar,
__print_array(__get_dynamic_array(list),
__get_dynamic_array_len(list) / sizeof(int),
sizeof(int)),
- __get_str(str), __get_bitmask(cpus), __get_cpumask(cpum),
+ __get_str(str), __get_str(lstr),
+ __get_bitmask(cpus), __get_cpumask(cpum),
__get_str(vstr))
);
--
2.43.0
