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perf tests bp_account: Add dedicated checking helper is_supported()

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The arm architecture supports breakpoint accounting but it doesn't
support breakpoint overflow signal handling.  The current code uses the
same checking helper, thus it disables both testings (bp_account and
bp_signal) for arm platform.

For handling two testings separately, this patch adds a dedicated
checking helper is_supported() for breakpoint accounting testing, thus
it allows supporting breakpoint accounting testing on arm platform; the
old helper test__bp_signal_is_supported() is only used to checking for
breakpoint overflow signal testing.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Brajeswar Ghosh <brajeswar.linux@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Cc: Will Deacon <will@kernel.org>
Link: http://lore.kernel.org/lkml/20191018085531.6348-2-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Leo Yan 2019-10-18 16:55:30 +08:00 committed by Arnaldo Carvalho de Melo
parent 12d795637b
commit e533eadf65
3 changed files with 18 additions and 1 deletions
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16
tools/perf/tests/bp_account.c
View File

@ -188,3 +188,19 @@ int test__bp_accounting(struct test *test __maybe_unused, int subtest __maybe_un
return bp_accounting(wp_cnt, share);
}
bool test__bp_account_is_supported(void)
{
/*
* PowerPC and S390 do not support creation of instruction
* breakpoints using the perf_event interface.
*
* Just disable the test for these architectures until these
* issues are resolved.
*/
#if defined(__powerpc__) || defined(__s390x__)
return false;
#else
return true;
#endif
}

2
tools/perf/tests/builtin-test.c
View File

@ -121,7 +121,7 @@ static struct test generic_tests[] = {
{
.desc = "Breakpoint accounting",
.func = test__bp_accounting,
.is_supported = test__bp_signal_is_supported,
.is_supported = test__bp_account_is_supported,
},
{
.desc = "Watchpoint",

1
tools/perf/tests/tests.h
View File

@ -111,6 +111,7 @@ int test__map_groups__merge_in(struct test *t, int subtest);
int test__time_utils(struct test *t, int subtest);
bool test__bp_signal_is_supported(void);
bool test__bp_account_is_supported(void);
bool test__wp_is_supported(void);
#if defined(__arm__) || defined(__aarch64__)