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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-03-25 01:23:47 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-03-26 16:52:28 +0300 |
| commit | 23d4aad48e31d3269af484dd2f9bd251278cd667 (patch) | |
| tree | 0bf256b09c904a39ed08aacf6e8f08068c3c6863 /tools/perf/builtin-stat.c | |
| parent | e94eedab3ab8201fd41480171b2fabbf3c5b1ae0 (diff) | |
| download | linux-23d4aad48e31d3269af484dd2f9bd251278cd667.tar.xz | |
perf evlist: Return the first evsel with an invalid filter in apply_filters()
Use of a bad filter currently generates the message:
Error: failed to set filter with 22 (Invalid argument)
Add the event name to make it clear to which event the filter
failed to apply:
Error: Failed to set filter "foo" on event sched:sg_lb_stats: 22: Invalid argument
To test it use something like:
# perf record -e sched:sched_switch -e sched:*fork --filter parent_pid==1 -e sched:*wait* --filter bla usleep 1
Error: failed to set filter "bla" on event sched:sched_stat_iowait with 22 (Invalid argument)
#
Based-on-a-patch-by: David Ahern <dsahern@gmail.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-d7gq2fjvaecozp9o2i0siifu@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-stat.c')
| -rw-r--r-- | tools/perf/builtin-stat.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index d4d1b77da0bd..f7b8218785f6 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -684,8 +684,9 @@ static int __run_perf_stat(int argc, const char **argv) unit_width = l; } - if (perf_evlist__apply_filters(evsel_list)) { - error("failed to set filter with %d (%s)\n", errno, + if (perf_evlist__apply_filters(evsel_list, &counter)) { + error("failed to set filter \"%s\" on event %s with %d (%s)\n", + counter->filter, perf_evsel__name(counter), errno, strerror_r(errno, msg, sizeof(msg))); return -1; } |