1 files changed, 43 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/spinlock.c b/tools/testing/selftests/bpf/prog_tests/spinlock.c
new file mode 100644
index 000000000..7577a77a4
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/spinlock.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+static void *spin_lock_thread(void *arg)
+{
+	__u32 duration, retval;
+	int err, prog_fd = *(u32 *) arg;
+
+	err = bpf_prog_test_run(prog_fd, 10000, &pkt_v4, sizeof(pkt_v4),
+				NULL, NULL, &retval, &duration);
+	CHECK(err || retval, "",
+	      "err %d errno %d retval %d duration %d\n",
+	      err, errno, retval, duration);
+	pthread_exit(arg);
+}
+
+void test_spinlock(void)
+{
+	const char *file = "./test_spin_lock.o";
+	pthread_t thread_id[4];
+	struct bpf_object *obj = NULL;
+	int prog_fd;
+	int err = 0, i;
+	void *ret;
+
+	err = bpf_prog_load(file, BPF_PROG_TYPE_CGROUP_SKB, &obj, &prog_fd);
+	if (CHECK_FAIL(err)) {
+		printf("test_spin_lock:bpf_prog_load errno %d\n", errno);
+		goto close_prog;
+	}
+	for (i = 0; i < 4; i++)
+		if (CHECK_FAIL(pthread_create(&thread_id[i], NULL,
+					      &spin_lock_thread, &prog_fd)))
+			goto close_prog;
+
+	for (i = 0; i < 4; i++)
+		if (CHECK_FAIL(pthread_join(thread_id[i], &ret) ||
+			       ret != (void *)&prog_fd))
+			goto close_prog;
+close_prog:
+	bpf_object__close(obj);
+}