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perf report: Show error message when processing sample fails 

Currently when perf fails to process samples for some reason, it doesn't
show any message about the failure.  This is very inconvenient for users
especially on TUI as screen is reset after the failure.

Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1448645559-31167-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2015-11-28 02:32:37 +09:00 committed by Arnaldo Carvalho de Melo
parent e37df6c76c
commit 25b1606be1
1 changed files with 9 additions and 3 deletions
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12
tools/perf/builtin-report.c
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@ -513,20 +513,26 @@ static int __cmd_report(struct report *rep)
if (rep->cpu_list) {
ret = perf_session__cpu_bitmap(session, rep->cpu_list,
rep->cpu_bitmap);
if (ret)
if (ret) {
ui__error("failed to set cpu bitmap\n");
return ret;
}
}
if (rep->show_threads)
perf_read_values_init(&rep->show_threads_values);
ret = report__setup_sample_type(rep);
if (ret)
if (ret) {
/* report__setup_sample_type() already showed error message */
return ret;
}
ret = perf_session__process_events(session);
if (ret)
if (ret) {
ui__error("failed to process sample\n");
return ret;
}
report__warn_kptr_restrict(rep);