perf tests: Add return states enum for tests

Test can currently return one of 3 states: ok, fail, skip.

The ok and fail states are self-explanatory. The skip state means that
some of the conditions for running the test was not met, making it
impossible to even run the test. For instance, if the hardware doesn't
support the 'precise' level required by a test, it will be skipped.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lkml.kernel.org/n/tip-04vnsdndarctfb1eii5c9hcy@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2 files changed, 18 insertions, 3 deletions

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index a164e4cd5f42..6a5dee2377b0 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -129,10 +129,19 @@ static int __cmd_test(int argc, const char *argv[])
                 pr_debug("\n--- start ---\n");
                 err = tests[curr].func();
                 pr_debug("---- end ----\n%s:", tests[curr].desc);
-                if (err)
-                        color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n");
-                else
+
+                switch (err) {
+                case TEST_OK:
                         pr_info(" Ok\n");
+                        break;
+                case TEST_SKIP:
+                        color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
+                        break;
+                case TEST_FAIL:
+                default:
+                        color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n");
+                        break;
+                }
         }
 
         return 0;
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index 0ded425b17d6..5de0be1ff4b6 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -1,6 +1,12 @@
 #ifndef TESTS_H
 #define TESTS_H
 
+enum {
+        TEST_OK   =  0,
+        TEST_FAIL = -1,
+        TEST_SKIP = -2,
+};
+
 /* Tests */
 int test__vmlinux_matches_kallsyms(void);
 int test__open_syscall_event(void);