On Mon, Dec 04, 2023 at 12:14:06PM -0800, Kyle Huey wrote:
The test sets a hardware breakpoint and uses a bpf program to suppress the I/O availability signal if the ip matches the expected value.
Signed-off-by: Kyle Huey khuey@kylehuey.com
.../selftests/bpf/prog_tests/perf_skip.c | 95 +++++++++++++++++++ .../selftests/bpf/progs/test_perf_skip.c | 23 +++++ 2 files changed, 118 insertions(+) create mode 100644 tools/testing/selftests/bpf/prog_tests/perf_skip.c create mode 100644 tools/testing/selftests/bpf/progs/test_perf_skip.c
diff --git a/tools/testing/selftests/bpf/prog_tests/perf_skip.c b/tools/testing/selftests/bpf/prog_tests/perf_skip.c new file mode 100644 index 000000000000..b269a31669b7 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/perf_skip.c @@ -0,0 +1,95 @@ +// SPDX-License-Identifier: GPL-2.0 +#define _GNU_SOURCE +#include <test_progs.h> +#include "test_perf_skip.skel.h" +#include <linux/hw_breakpoint.h> +#include <sys/mman.h>
+#define BPF_OBJECT "test_perf_skip.bpf.o"
+static void handle_sig(int) +{
- ASSERT_OK(1, "perf event not skipped");
+}
+static noinline int test_function(void) +{
- return 0;
+}
+void serial_test_perf_skip(void)
does it need to be serial?
jirka