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tracing/filter: Add startup tests for events filter

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Adding automated tests running as late_initcall. Tests are
compiled in with CONFIG_FTRACE_STARTUP_TEST option.

Adding test event "ftrace_test_filter" used to simulate
filter processing during event occurance.

String filters are compiled and tested against several
test events with different values.

Also testing that evaluation of explicit predicates is ommited
due to the lazy filter evaluation.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1313072754-4620-11-git-send-email-jolsa@redhat.com
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Jiri Olsa 2011-08-11 16:25:54 +02:00 • committed by Steven Rostedt
parent f30120fce1
commit 1d0e78e380
4 changed files with 264 additions and 0 deletions
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3
kernel/trace/trace.h
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@ -762,6 +762,9 @@ struct filter_pred {
u64 val;
struct regex regex;
unsigned short *ops;
#ifdef CONFIG_FTRACE_STARTUP_TEST
struct ftrace_event_field *field;
#endif
int offset;
int not;
int op;