Fix atomic.wait, get wasi_ctx exit code and thread mgr issues (#2024)

- Remove notify_stale_threads_on_exception and change atomic.wait
  to be interruptible by keep waiting and checking every one second,
  like the implementation of poll_oneoff in libc-wasi
- Wait all other threads exit and then get wasi exit_code to avoid
  getting invalid value
- Inherit suspend_flags of parent thread while creating new thread to
  avoid terminated flag isn't set for new thread
- Fix wasi-threads test case update_shared_data_and_alloc_heap
- Add "Lib wasi-threads enabled" prompt for cmake
- Fix aot get exception, use aot_copy_exception instead

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

@@ -41,9 +41,6 @@ __wasi_thread_start_C(int thread_id, int *start_arg)
     for (int i = 0; i < NUM_ITER; i++)
         __atomic_fetch_add(data->count, 1, __ATOMIC_SEQ_CST);
 
-    pthread_mutex_lock(&mutex); /* malloc is not thread-safe in wasi-libc */
-    vals[data->iteration] = malloc(sizeof(int));
-    pthread_mutex_unlock(&mutex);
     *vals[data->iteration] = data->iteration;
 
     __atomic_store_n(&data->th_done, 1, __ATOMIC_SEQ_CST);
@@ -60,6 +57,11 @@ main(int argc, char **argv)
     assert(count != NULL && "Failed to call calloc");
     assert(pthread_mutex_init(&mutex, NULL) == 0 && "Failed to init mutex");
 
+    for (int i = 0; i < NUM_THREADS; i++) {
+        vals[i] = malloc(sizeof(int));
+        assert(vals[i] != NULL && "Failed to call calloc");
+    }
+
     for (int i = 0; i < NUM_THREADS; i++) {
         assert(start_args_init(&data[i].base)
                && "Stack allocation for thread failed");

core/iwasm/libraries/thread-mgr/thread_manager.c

@@ -525,6 +525,9 @@ wasm_cluster_spawn_exec_env(WASMExecEnv *exec_env)
         goto fail4;
     }
 
+    /* Inherit suspend_flags of parent thread */
+    new_exec_env->suspend_flags.flags = exec_env->suspend_flags.flags;
+
     if (!wasm_cluster_add_exec_env(cluster, new_exec_env))
         goto fail4;
 
@@ -674,6 +677,9 @@ wasm_cluster_create_thread(WASMExecEnv *exec_env,
         new_exec_env->aux_stack_bottom.bottom = UINT32_MAX;
     }
 
+    /* Inherit suspend_flags of parent thread */
+    new_exec_env->suspend_flags.flags = exec_env->suspend_flags.flags;
+
     if (!wasm_cluster_add_exec_env(cluster, new_exec_env))
         goto fail3;