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

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>

diff --git a/tools/perf/lib/include/perf/event.h b/tools/perf/lib/include/perf/event.h
index 71045ea8214c89e291d596bd32852948e47ab62f..86a779593405953198324e839e147ecc52d0f18e 100644 (file)
--- a/tools/perf/lib/include/perf/event.h
+++ b/tools/perf/lib/include/perf/event.h
@@ -56,4 +56,9 @@ struct lost_event {
        __u64                    lost;
 };
 
+struct lost_samples_event {
+       struct perf_event_header header;
+       __u64                    lost;
+};
+
 #endif /* __LIBPERF_EVENT_H */

diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 4a3f50203d045d4d95dd3002d5d2a17350d84045..976a8f00d2a298f0bedb6f7a8f0c98c1e783b37c 100644 (file)
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -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
  */

diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 1ad6e984c2f56f6593fb66b3a4ff5df62ed83205..823aaf7b1b83b227efece29d98544aceef356b78 100644 (file)
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -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;
 }