Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

User visible changes:

  - Force period term to overload global settings, i.e. previously this
    command line:

     $ perf record -e 'cpu/instructions,period=20000/',cycles -c 1000 sleep 1

    would result in both events having a period equal to 1000, with the fix we
    get something saner:

     $ perf evlist -v | grep period
     cpu/instructions,period=20000/: ... { sample_period, sample_freq }: 20000, ...
     cycles: ... { sample_period, sample_freq }: 1000 ...
     $

   (Jiri Olsa)

Infrastructure changes:

  - Use the dummy software event with freq=0 in the twatch.py python
    binding example, to avoid disabling nohz. (Arnaldo Carvalho de Melo)

  - Add some missing constants to the python binding. (Arnaldo Carvalho de Melo)

  - Fix mismatched declarations for elf_getphdrnum, that happens
    only in the corner case where this function is not found on
    the system.  (Arnaldo Carvalho de Melo)

  - Add build test for having ending double slash. (Jiri Olsa)

  - Introduce callgraph_set for callgraph option. (Kan Liang)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 10 insertions, 2 deletions

diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index d76963f7ad3d..f65bb89e109e 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -82,8 +82,12 @@ static int test__checkevent_symbolic_name_config(struct perf_evlist *evlist)
 	TEST_ASSERT_VAL("wrong type", PERF_TYPE_HARDWARE == evsel->attr.type);
 	TEST_ASSERT_VAL("wrong config",
 			PERF_COUNT_HW_CPU_CYCLES == evsel->attr.config);
+	/*
+	 * The period value gets configured within perf_evlist__config,
+	 * while this test executes only parse events method.
+	 */
 	TEST_ASSERT_VAL("wrong period",
-			100000 == evsel->attr.sample_period);
+			0 == evsel->attr.sample_period);
 	TEST_ASSERT_VAL("wrong config1",
 			0 == evsel->attr.config1);
 	TEST_ASSERT_VAL("wrong config2",
@@ -406,7 +410,11 @@ static int test__checkevent_pmu(struct perf_evlist *evlist)
 	TEST_ASSERT_VAL("wrong config",    10 == evsel->attr.config);
 	TEST_ASSERT_VAL("wrong config1",    1 == evsel->attr.config1);
 	TEST_ASSERT_VAL("wrong config2",    3 == evsel->attr.config2);
-	TEST_ASSERT_VAL("wrong period",  1000 == evsel->attr.sample_period);
+	/*
+	 * The period value gets configured within perf_evlist__config,
+	 * while this test executes only parse events method.
+	 */
+	TEST_ASSERT_VAL("wrong period",     0 == evsel->attr.sample_period);
 
 	return 0;
 }