commit c171b552a7d316c7e1c3ad6f70a30178dd53e14c
author Li Zefan <lizf@cn.fujitsu.com> Thu Oct 15 11:22:07 2009 +0800
committer Ingo Molnar <mingo@elte.hu> Thu Oct 15 11:35:23 2009 +0200
tree 99755963367839f3232565acd0ff1680037126fa
parent 6fb2915df7f0747d9044da9dbff5b46dc2e20830

perf trace: Add filter Suppport

Add a new option "--filter <filter_str>" to perf record, and
it should be right after "-e trace_point":

 #./perf record -R -f -e irq:irq_handler_entry --filter irq==18
 ^C
 # ./perf trace
            perf-4303  ... irq_handler_entry: irq=18 handler=eth0
            init-0     ... irq_handler_entry: irq=18 handler=eth0
            init-0     ... irq_handler_entry: irq=18 handler=eth0
            init-0     ... irq_handler_entry: irq=18 handler=eth0
            init-0     ... irq_handler_entry: irq=18 handler=eth0

See Documentation/trace/events.txt for the syntax of filter
expressions.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <4AD6955F.90602@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

tools/perf/util/parse-events.h

diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 8626a43..b8c1f64 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -17,11 +17,13 @@
 extern int			nr_counters;
 
 extern struct perf_event_attr attrs[MAX_COUNTERS];
+extern char *filters[MAX_COUNTERS];
 
 extern const char *event_name(int ctr);
 extern const char *__event_name(int type, u64 config);
 
 extern int parse_events(const struct option *opt, const char *str, int unset);
+extern int parse_filter(const struct option *opt, const char *str, int unset);
 
 #define EVENTS_HELP_MAX (128*1024)