diff --git a/lib/libc/armstdc/CMakeLists.txt b/lib/libc/armstdc/CMakeLists.txt
index b92f061b411..8a15fdf4ae4 100644
--- a/lib/libc/armstdc/CMakeLists.txt
+++ b/lib/libc/armstdc/CMakeLists.txt
@@ -4,5 +4,6 @@ zephyr_library()
 zephyr_library_sources(src/errno.c)
 zephyr_library_sources(src/string.c)
 zephyr_library_sources(src/libc-hooks.c)
+zephyr_library_sources_ifndef(CONFIG_MULTITHREADING src/threading_weak.c)
 
 zephyr_system_include_directories(include)
diff --git a/lib/libc/armstdc/src/threading_weak.c b/lib/libc/armstdc/src/threading_weak.c
new file mode 100644
index 00000000000..0b01600255b
--- /dev/null
+++ b/lib/libc/armstdc/src/threading_weak.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2021 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * Weak stub implementation of threading related kernel functions.
+ *
+ * This file is needed for armlink.
+ *
+ * When linking with armlink the linker will resolve undefined symbols for all
+ * undefined functions even if those functions the reference the undefined
+ * symbol is never actually called.
+ *
+ * This file provides weak stub implementations that are compiled when
+ * CONFIG_MULTITHREADING=n to ensure proper linking.
+ */
+
+#include <kernel.h>
+
+int __weak z_impl_k_mutex_init(struct k_mutex *mutex)
+{
+	return 0;
+}
+
+int __weak z_impl_k_mutex_lock(struct k_mutex *mutex, k_timeout_t timeout)
+{
+	return 0;
+}
+
+int __weak z_impl_k_mutex_unlock(struct k_mutex *mutex)
+{
+	return 0;
+}
+
+void __weak z_impl_k_sem_give(struct k_sem *sem)
+{
+}
+
+int __weak z_impl_k_sem_init(struct k_sem *sem, unsigned int initial_count,
+		      unsigned int limit)
+{
+	return 0;
+}
+
+int __weak z_impl_k_sem_take(struct k_sem *sem, k_timeout_t timeout)
+{
+	return 0;
+}
+
+k_tid_t __weak z_impl_z_current_get(void)
+{
+	return 0;
+}
+
+int32_t __weak z_impl_k_usleep(int us)
+{
+	return 0;
+}
+
+void __weak z_thread_abort(struct k_thread *thread)
+{
+}
+
+void __weak k_sched_lock(void)
+{
+}
+
+void __weak k_sched_unlock(void)
+{
+}