建立工程，成功创建两个虚拟串口

source/OpenAMP/libmetal/lib/system/generic/sys.h

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+/*
+ * Copyright (c) 2015, Xilinx Inc. and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/*
+ * @file	generic/sys.h
+ * @brief	Generic system primitives for libmetal.
+ */
+
+#ifndef __METAL_SYS__H__
+#error "Include metal/sys.h instead of metal/generic/sys.h"
+#endif
+
+#ifndef __METAL_GENERIC_SYS__H__
+#define __METAL_GENERIC_SYS__H__
+
+#include <metal/errno.h>
+#include <fcntl.h>
+#include <libgen.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+
+#include "./@PROJECT_MACHINE@/sys.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef METAL_MAX_DEVICE_REGIONS
+#define METAL_MAX_DEVICE_REGIONS 1
+#endif
+
+/** Structure of generic libmetal runtime state. */
+struct metal_state {
+
+	/** Common (system independent) data. */
+	struct metal_common_state common;
+};
+
+#ifdef METAL_INTERNAL
+
+/**
+ * @brief restore interrupts to state before disable_global_interrupt()
+ */
+void sys_irq_restore_enable(unsigned int flags);
+
+/**
+ * @brief disable all interrupts
+ */
+unsigned int sys_irq_save_disable(void);
+
+#endif /* METAL_INTERNAL */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __METAL_GENERIC_SYS__H__ */