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authorArnaldo Carvalho de Melo <acme@redhat.com>2016-04-20 19:55:48 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-04-25 12:49:17 -0300
commit7ad356159542e1f0dd4703ff3604f67390657f57 (patch)
tree72a23c524ec4e60eb4a1f67e90ba3280ae4e90c5 /tools/perf
parente557b674a9470dae99916be6105e6780b3a072ca (diff)
perf trace: Make --event honour --min-stack too
Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-shj0fazntmskhjild5i6x73l@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/builtin-trace.c21
1 files changed, 16 insertions, 5 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index d1bbcb9abca3..fc276d718172 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2126,6 +2126,17 @@ static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel,
union perf_event *event __maybe_unused,
struct perf_sample *sample)
{
+ int callchain_ret = 0;
+
+ if (sample->callchain) {
+ callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor);
+ if (callchain_ret == 0) {
+ if (callchain_cursor.nr < trace->min_stack)
+ goto out;
+ callchain_ret = 1;
+ }
+ }
+
trace__printf_interrupted_entry(trace, sample);
trace__fprintf_tstamp(trace, sample->time, trace->output);
@@ -2144,11 +2155,11 @@ static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel,
fprintf(trace->output, ")\n");
- if (sample->callchain) {
- if (trace__resolve_callchain(trace, evsel, sample, &callchain_cursor) == 0)
- trace__fprintf_callchain(trace, sample);
- }
-
+ if (callchain_ret > 0)
+ trace__fprintf_callchain(trace, sample);
+ else if (callchain_ret < 0)
+ pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel));
+out:
return 0;
}