import RT-Thread@9217865c without bsp, libcpu and components/net

components/libc/compilers/dlib/syscall_remove.c

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2015-01-28     Bernard      first version
+ */
+
+#include <rtthread.h>
+#include <LowLevelIOInterface.h>
+#include <unistd.h>
+#include <compiler_private.h>
+#define DBG_TAG    "dlib.syscall.remove"
+#define DBG_LVL    DBG_INFO
+#include <rtdbg.h>
+
+/*
+ * The "remove" function should remove the file named "filename".  It
+ * should return 0 on success and nonzero on failure.
+ */
+
+#pragma module_name = "?remove"
+
+int remove(const char *filename)
+{
+#ifdef DFS_USING_POSIX
+    return unlink(filename);
+#else
+    LOG_W(_WARNING_WITHOUT_FS);
+    return _LLIO_ERROR;
+#endif /* DFS_USING_POSIX */
+}