Re: [PATCH v2 1/5] perf tools: Fix segfault when using -s trace_fields

From: Arnaldo Carvalho de Melo
Date: Tue Jan 05 2016 - 16:50:13 EST


Em Tue, Jan 05, 2016 at 07:58:34PM +0900, Namhyung Kim escreveu:
> When the 'trace_fields' sort key is used explicitly for non-tracepoint
> events, it'll get segfault since it assumed evsel->tp_format was set.
> Skip those events in add_all_dynamic_fields().
>
> Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>
> Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>

Merged with the patch introducing this problem, that I hadn't sent to
Ingo,

- Arnaldo

> ---
> tools/perf/util/sort.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
> index e558e87cafaf..59c4c8586d79 100644
> --- a/tools/perf/util/sort.c
> +++ b/tools/perf/util/sort.c
> @@ -1955,6 +1955,9 @@ static int add_all_dynamic_fields(struct perf_evlist *evlist, bool raw_trace)
> struct perf_evsel *evsel;
>
> evlist__for_each(evlist, evsel) {
> + if (evsel->attr.type != PERF_TYPE_TRACEPOINT)
> + continue;
> +
> ret = add_evsel_fields(evsel, raw_trace);
> if (ret < 0)
> return ret;
> --
> 2.6.4
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