perf report: add counter for unknown events

Add a counter for unknown event records.

[ Impact: improve debugging ]

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 6 insertions, 4 deletions

diff --git a/Documentation/perf_counter/builtin-report.c b/Documentation/perf_counter/builtin-report.c
index 8ea8aaa05af5..4b5ccc5bd0e6 100644
--- a/Documentation/perf_counter/builtin-report.c
+++ b/Documentation/perf_counter/builtin-report.c
@@ -645,7 +645,7 @@ static int __cmd_report(void)
         char *buf;
         event_t *event;
         int ret, rc = EXIT_FAILURE;
-        unsigned long total = 0, total_mmap = 0, total_comm = 0;
+        unsigned long total = 0, total_mmap = 0, total_comm = 0, total_unknown;
 
         input = open(input_name, O_RDONLY);
         if (input < 0) {
@@ -785,6 +785,7 @@ more:
         default: {
                 fprintf(stderr, "skipping unknown header type: %d\n",
                         event->header.type);
+                total_unknown++;
         }
         }
 
@@ -796,9 +797,10 @@ done:
         close(input);
 
         if (dump_trace) {
-                fprintf(stderr, "   IP events: %10ld\n", total);
-                fprintf(stderr, " mmap events: %10ld\n", total_mmap);
-                fprintf(stderr, " comm events: %10ld\n", total_comm);
+                fprintf(stderr, "      IP events: %10ld\n", total);
+                fprintf(stderr, "    mmap events: %10ld\n", total_mmap);
+                fprintf(stderr, "    comm events: %10ld\n", total_comm);
+                fprintf(stderr, " unknown events: %10ld\n", total_unknown);
 
                 return 0;
         }