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libperf: Add PERF_RECORD_LOST_SAMPLES 'struct lost_samples_event' to perf/event.h

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Move the PERF_RECORD_LOST_SAMPLES event definition into libperf's
event.h header include.

In order to keep libperf simple, we switch 'u64/u32/u16/u8' types used
events to their generic '__u*' versions.

Perf added 'u*' types mainly to ease up printing __u64 values
as stated in the linux/types.h comment:

  /*
   * We define u64 as uint64_t for every architecture
   * so that we can print it with "%"PRIx64 without getting warnings.
   *
   * typedef __u64 u64;
   * typedef __s64 s64;
   */

Add and use new PRI_lu64 and PRI_lx64 macros for that.  Use extra '_' to
ease up the reading and differentiate them from standard PRI*64 macros.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190825181752.722-8-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2019-08-25 20:17:47 +02:00 committed by Arnaldo Carvalho de Melo
parent 5290ed6955
commit a2e254d841
3 changed files with 6 additions and 6 deletions
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5
tools/perf/lib/include/perf/event.h
View File

@ -56,4 +56,9 @@ struct lost_event {
__u64 lost;
};
struct lost_samples_event {
struct perf_event_header header;
__u64 lost;
};
#endif /* __LIBPERF_EVENT_H */

5
tools/perf/util/event.h
View File

@ -27,11 +27,6 @@
#define PRI_lx64 PRIx64
#endif
struct lost_samples_event {
struct perf_event_header header;
u64 lost;
};
/*
* PERF_FORMAT_ENABLED | PERF_FORMAT_RUNNING | PERF_FORMAT_ID
*/

2
tools/perf/util/machine.c
View File

@ -653,7 +653,7 @@ int machine__process_lost_event(struct machine *machine __maybe_unused,
int machine__process_lost_samples_event(struct machine *machine __maybe_unused,
union perf_event *event, struct perf_sample *sample)
{
dump_printf(": id:%" PRIu64 ": lost samples :%" PRIu64 "\n",
dump_printf(": id:%" PRIu64 ": lost samples :%" PRI_lu64 "\n",
sample->id, event->lost_samples.lost);
return 0;
}