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perf auxtrace: Add helpers for AUX area tracing errors

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Add functions to synthesize, count and print AUX area tracing error
events.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1428594864-29309-11-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter
2015-04-09 18:53:50 +03:00
committed by Arnaldo Carvalho de Melo
parent f6986c95af
commit 85ed47299e
4 changed files with 104 additions and 0 deletions
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6
tools/perf/util/event.h
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@@ -221,6 +221,11 @@ enum perf_user_event_type { /* above any possible kernel type */
PERF_RECORD_HEADER_MAX
};
enum auxtrace_error_type {
PERF_AUXTRACE_ERROR_ITRACE = 1,
PERF_AUXTRACE_ERROR_MAX
};
/*
* The kernel collects the number of events it couldn't send in a stretch and
* when possible sends this number in a PERF_RECORD_LOST event. The number of
@@ -245,6 +250,7 @@ struct events_stats {
u32 nr_invalid_chains;
u32 nr_unknown_id;
u32 nr_unprocessable_samples;
u32 nr_auxtrace_errors[PERF_AUXTRACE_ERROR_MAX];
};
struct attr_event {