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tracing: Update the TRACE_EVENT fields available in the sample code

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The sample code in samples/trace_events/ is extremely out of date and does
not show all the new fields that have been added since the sample code
was written. As most people are unaware of these new fields, adding sample
code and explanations of those fields should help out.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat)
2015-02-09 15:27:04 -05:00
committed by Steven Rostedt
parent 7eeafbcab4
commit 4e20e3a60b
2 changed files with 150 additions and 14 deletions
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19
samples/trace_events/trace-events-sample.c
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@@ -10,12 +10,29 @@
#define CREATE_TRACE_POINTS
#include "trace-events-sample.h"
static const char *random_strings[] = {
"Mother Goose",
"Snoopy",
"Gandalf",
"Frodo",
"One ring to rule them all"
};
static void simple_thread_func(int cnt)
{
int array[6];
int len = cnt % 5;
int i;
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(HZ);
trace_foo_bar("hello", cnt);
for (i = 0; i < len; i++)
array[i] = i + 1;
array[i] = 0;
trace_foo_bar("hello", cnt, array, random_strings[len],
tsk_cpus_allowed(current));
}
static int simple_thread(void *arg)