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authorLeo Yan <leo.yan@linaro.org>2019-10-18 11:55:30 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-10-19 21:35:01 +0300
commite533eadf6596451880f518949cbb964dbd6189ae (patch)
tree7967b934c70e59f95fe660a6b8c15d091d77f409 /tools/perf/tests/bp_account.c
parent12d795637ba169650ea10ad6babcc5425255944a (diff)
downloadlinux-e533eadf6596451880f518949cbb964dbd6189ae.tar.xz
perf tests bp_account: Add dedicated checking helper is_supported()
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>
Diffstat (limited to 'tools/perf/tests/bp_account.c')
-rw-r--r--tools/perf/tests/bp_account.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/perf/tests/bp_account.c b/tools/perf/tests/bp_account.c
index 52ff7a462670..d0b935356274 100644
--- a/tools/perf/tests/bp_account.c
+++ b/tools/perf/tests/bp_account.c
@@ -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
+}