fix: remove prints from different threads causing data races

core/iwasm/libraries/wasi-threads/test/common.h

@@ -60,11 +60,9 @@ void
 terminate_process()
 {
     /* Wait for all other threads (including main thread) to be ready */
-    printf("Waiting before terminating\n");
     for (int i = 0; i < NUM_THREADS; i++)
         sem_wait(&sem);
 
-    printf("Force termination\n");
     if (termination_by_trap)
         __builtin_trap();
     else
@@ -80,7 +78,6 @@ __wasi_thread_start_C(int thread_id, int *start_arg)
         terminate_process();
     }
     else {
-        printf("Thread running\n");
         start_job();
     }
 }
@@ -116,11 +113,9 @@ test_termination(bool trap, bool main, blocking_task_type_t task_type)
     assert(thread_id > 0 && "Failed to create thread");
 
     if (termination_in_main_thread) {
-        printf("Force termination (main thread)\n");
         terminate_process();
     }
     else {
-        printf("Main thread running\n");
         start_job();
     }
 }

core/iwasm/libraries/wasi-threads/test/global_lock.c

@@ -73,6 +73,6 @@ main(int argc, char **argv)
     assert(g_count == (NUM_THREADS * NUM_ITER)
            && "Global count not updated correctly");
 
-    assert(pthread_mutex_destroy(&mutex) == 0 && "Failed to init mutex");
+    assert(pthread_mutex_destroy(&mutex) == 0 && "Failed to destroy mutex");
     return EXIT_SUCCESS;
 }

core/iwasm/libraries/wasi-threads/test/update_shared_data_and_alloc_heap.c

@@ -56,7 +56,7 @@ main(int argc, char **argv)
     for (int i = 0; i < NUM_THREADS; i++) {
         assert(start_args_init(&data[i].base)
                && "Stack allocation for thread failed");
-        data[i].count = count;
+        __atomic_store_n(&data[i].count, count, __ATOMIC_SEQ_CST);
         data[i].iteration = i;
 
         thread_ids[i] = __wasi_thread_spawn(&data[i]);