建立工程，成功创建两个虚拟串口

source/OpenAMP/libmetal/lib/system/zephyr/alloc.c

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2017, Linaro Limited. and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/*
+ * @file	zephyr/alloc.c
+ * @brief	Zephyr libmetal memory allocation handling.
+ */
+
+#include <metal/alloc.h>
+#include <metal/compiler.h>
+
+#if (CONFIG_HEAP_MEM_POOL_SIZE <= 0)
+
+void* metal_weak metal_zephyr_allocate_memory(unsigned int size)
+{
+	(void)size;
+	return NULL;
+}
+
+void metal_weak metal_zephyr_free_memory(void *ptr)
+{
+	(void)ptr;
+}
+
+#endif /* CONFIG_HEAP_MEM_POOL_SIZE */