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authorArnaldo Carvalho de Melo <acme@redhat.com>2015-03-24 19:23:47 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-03-26 10:52:28 -0300
commit23d4aad48e31d3269af484dd2f9bd251278cd667 (patch)
tree0bf256b09c904a39ed08aacf6e8f08068c3c6863 /tools
parente94eedab3ab8201fd41480171b2fabbf3c5b1ae0 (diff)
downloadop-kernel-dev-23d4aad48e31d3269af484dd2f9bd251278cd667.zip
op-kernel-dev-23d4aad48e31d3269af484dd2f9bd251278cd667.tar.gz
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')
-rw-r--r--tools/perf/builtin-record.c5
-rw-r--r--tools/perf/builtin-stat.c5
-rw-r--r--tools/perf/util/evlist.c6
-rw-r--r--tools/perf/util/evlist.h2
4 files changed, 11 insertions, 7 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 5a2ff51..18aad239 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -161,8 +161,9 @@ try_again:
}
}
- if (perf_evlist__apply_filters(evlist)) {
- error("failed to set filter with %d (%s)\n", errno,
+ if (perf_evlist__apply_filters(evlist, &pos)) {
+ error("failed to set filter \"%s\" on event %s with %d (%s)\n",
+ pos->filter, perf_evsel__name(pos), errno,
strerror_r(errno, msg, sizeof(msg)));
rc = -1;
goto out;
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index d4d1b77..f7b8218 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;
}
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 8d0b623..82bf224 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1050,7 +1050,7 @@ out_delete_threads:
return -1;
}
-int perf_evlist__apply_filters(struct perf_evlist *evlist)
+int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **err_evsel)
{
struct perf_evsel *evsel;
int err = 0;
@@ -1062,8 +1062,10 @@ int perf_evlist__apply_filters(struct perf_evlist *evlist)
continue;
err = perf_evsel__set_filter(evsel, ncpus, nthreads, evsel->filter);
- if (err)
+ if (err) {
+ *err_evsel = evsel;
break;
+ }
}
return err;
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index f07c984..fb19c47 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -152,7 +152,7 @@ static inline void perf_evlist__set_maps(struct perf_evlist *evlist,
}
int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target);
-int perf_evlist__apply_filters(struct perf_evlist *evlist);
+int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **err_evsel);
void __perf_evlist__set_leader(struct list_head *list);
void perf_evlist__set_leader(struct perf_evlist *evlist);
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