freeze: add freeze_thaw test

Change-Id: I31db80b89adca9ac354a96ad21073b269d8a0e24

test/freeze_thaw/cmd/pthread_create.c

@@ -0,0 +1,49 @@
+/* pthread_create.c COPYRIGHT FUJITSU LIMITED 2019 */
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#define MAX_THREAD 1000
+static pthread_t thread[MAX_THREAD];
+
+static void *child_thread(void *arg)
+{
+	return NULL;
+}
+
+int main(int argc, char **argv)
+{
+	int ret = 0;
+	int nr_thread;
+	int i, j;
+
+	if (argc < 2) {
+		printf("usage: %s <nr_thread>\n", argv[0]);
+		return 1;
+	}
+
+	nr_thread = atoi(argv[1]);
+	if (nr_thread >= MAX_THREAD) {
+		printf("err: MAX_THREAD=%d\n", MAX_THREAD);
+		return 1;
+	}
+
+	for (i = 0; i < nr_thread; i++) {
+		ret = pthread_create(&thread[i], NULL, child_thread, NULL);
+		if (ret) {
+			perror("pthread_create");
+			break;
+		}
+	}
+
+	for (j = 0; j < i; j++) {
+		int join = pthread_join(thread[j], NULL);
+
+		if (join) {
+			ret = join;
+			perror("pthread_join");
+		}
+	}
+	return ret;
+}