Commit-ID: 7ad356159542e1f0dd4703ff3604f67390657f57 Gitweb: http://git.kernel.org/tip/7ad356159542e1f0dd4703ff3604f67390657f57 Author: Arnaldo Carvalho de Melo <[email protected]> AuthorDate: Wed, 20 Apr 2016 19:55:48 -0300 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Mon, 25 Apr 2016 12:49:17 -0300
perf trace: Make --event honour --min-stack too Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Milian Wolff <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/builtin-trace.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index d1bbcb9..fc276d7 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; }
