Messages in this thread Patch in this message | | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 05/30] perf trace: Make --event honour --min-stack too | Date | Wed, 27 Apr 2016 11:30:47 -0300 |
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From: Arnaldo Carvalho de Melo <acme@redhat.com>
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> --- 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 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; } -- 2.5.5
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