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perf timechart: Adjust perf timechart to the new power events

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builtin-timechart must only pass -e power:xy events if they are supported by
the running kernel, otherwise try to fetch the old power:power{start,end}
events.

For this I added the tiny helper function:

   int is_valid_tracepoint(const char *event_string)

to parse-events.[hc], which could be more generic as an interface and support
hardware/software/... events, not only tracepoints, but someone else could
extend that if needed...

Signed-off-by: Thomas Renninger <trenn@suse.de>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Jean Pihet <j-pihet@ti.com>
LKML-Reference: <1294073445-14812-4-git-send-email-trenn@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Thomas Renninger
2011-01-03 17:50:45 +01:00
committed by Ingo Molnar
parent 25e41933b5
commit 20c457b858
3 changed files with 118 additions and 18 deletions
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tools/perf/util/parse-events.h
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@@ -36,6 +36,7 @@ extern int parse_filter(const struct option *opt, const char *str, int unset);
#define EVENTS_HELP_MAX (128*1024)
extern void print_events(void);
extern int is_valid_tracepoint(const char *event_string);
extern char debugfs_path[];
extern int valid_debugfs_mount(const char *debugfs);