+/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2014 Samsung Electronics
* Przemyslaw Marczak <p.marczak@samsung.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _ERRNO_H
#define _ERRNO_H
-#include <asm-generic/errno.h>
+#include <linux/errno.h>
+
+#ifdef __SANDBOX__
+#define __errno_asm_label asm("__u_boot_errno")
+#else
+#define __errno_asm_label
+#endif
-extern int errno;
+extern int errno __errno_asm_label;
#define __set_errno(val) do { errno = val; } while (0)
+/**
+ * errno_str() - get description for error number
+ *
+ * @errno: error number (negative in case of error)
+ * Return: string describing the error. If CONFIG_ERRNO_STR is not
+ * defined an empty string is returned.
+ */
#ifdef CONFIG_ERRNO_STR
const char *errno_str(int errno);
#else
+static const char error_message[] = "";
+
static inline const char *errno_str(int errno)
{
- return 0;
+ return error_message;
}
#endif
#endif /* _ERRNO_H */