Re: [PATCH V4 15/21] perf tools: fix missing increment in sampleparsing

From: Arnaldo Carvalho de Melo
Date: Fri Jul 05 2013 - 13:08:41 EST


Em Thu, Jul 04, 2013 at 04:20:34PM +0300, Adrian Hunter escreveu:
> The final sample format bit used to be PERF_SAMPLE_STACK_USER
> which neglected to do a final increment of the array pointer.
> The result is that the following parsing might start at the
> wrong place.

One 'perf test' entry that would ask for these features and then check
that the result obtained is what is expected would come in handy here
:-\

- Arnaldo

> Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> ---
> tools/perf/util/evsel.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
> index 86628fe..10ccf38 100644
> --- a/tools/perf/util/evsel.c
> +++ b/tools/perf/util/evsel.c
> @@ -1284,7 +1284,7 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
> } else {
> data->user_stack.data = (char *)array;
> array += size / sizeof(*array);
> - data->user_stack.size = *array;
> + data->user_stack.size = *array++;
> }
> }
>
> --
> 1.7.11.7
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