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perf test: Disable breakpoint signal tests for powerpc

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The following tests are failing on powerpc:

  # perf test break
  18: Breakpoint overflow signal handler  : FAILED!
  19: Breakpoint overflow sampling        : FAILED!

The powerpc kenel so far does not have support to even create
instruction breakpoints using the perf event interface, so those tests
fail early in the config phase.

I added a '->is_supported()' callback to test struct to be able to
disable specific tests. It seems better than putting ifdefs directly to
the test array.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20170601205450.GA398@krava
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2017-06-01 22:54:50 +02:00 committed by Arnaldo Carvalho de Melo
parent a09935b878
commit 598762cf91
3 changed files with 24 additions and 0 deletions
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14
tools/perf/tests/bp_signal.c
View File

@ -288,3 +288,17 @@ int test__bp_signal(int subtest __maybe_unused)
return count1 == 1 && overflows == 3 && count2 == 3 && overflows_2 == 3 && count3 == 2 ?
TEST_OK : TEST_FAIL;
}
bool test__bp_signal_is_supported(void)
{
/*
* The powerpc so far does not have support to even create
* instruction breakpoint using the perf event interface.
* Once it's there we can release this.
*/
#ifdef __powerpc__
return false;
#else
return true;
#endif
}

7
tools/perf/tests/builtin-test.c
View File

@ -97,10 +97,12 @@ static struct test generic_tests[] = {
{
.desc = "Breakpoint overflow signal handler",
.func = test__bp_signal,
.is_supported = test__bp_signal_is_supported,
},
{
.desc = "Breakpoint overflow sampling",
.func = test__bp_signal_overflow,
.is_supported = test__bp_signal_is_supported,
},
{
.desc = "Number of exit events of a simple workload",
@ -401,6 +403,11 @@ static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
if (!perf_test__matches(t, curr, argc, argv))
continue;
if (t->is_supported && !t->is_supported()) {
pr_debug("%2d: %-*s: Disabled\n", i, width, t->desc);
continue;
}
pr_info("%2d: %-*s:", i, width, t->desc);
if (intlist__find(skiplist, i)) {

3
tools/perf/tests/tests.h
View File

@ -34,6 +34,7 @@ struct test {
int (*get_nr)(void);
const char *(*get_desc)(int subtest);
} subtest;
bool (*is_supported)(void);
};
/* Tests */
@ -99,6 +100,8 @@ const char *test__clang_subtest_get_desc(int subtest);
int test__clang_subtest_get_nr(void);
int test__unit_number__scnprint(int subtest);
bool test__bp_signal_is_supported(void);
#if defined(__arm__) || defined(__aarch64__)
#ifdef HAVE_DWARF_UNWIND_SUPPORT
struct thread;