建立工程，成功创建两个虚拟串口

source/OpenAMP/libmetal/lib/system/freertos/irq.h

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+/*
+ * Copyright (c) 2016, Xilinx Inc. and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/*
+ * @file	freertos/irq.c
+ * @brief	FreeRTOS libmetal irq definitions.
+ */
+
+#ifndef __METAL_IRQ__H__
+#error "Include metal/irq.h instead of metal/freertos/irq.h"
+#endif
+
+#ifndef __METAL_FREERTOS_IRQ__H__
+#define __METAL_FREERTOS_IRQ__H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief      default interrupt handler 
+ * @param[in]  vector interrupt vector
+ */
+void metal_irq_isr(unsigned int vector);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __METAL_FREERTOS_IRQ__H__ */