u-boot/include/errno.h

#ifndef _ERRNO_H

#include <asm-generic/errno.h>

extern int errno;

#define __set_errno(val) do { errno = val; } while (0)

#ifdef CONFIG_ERRNO_STR
const char *errno_str(int errno);
#endif
#endif /* _ERRNO_H */
Add basic errno support. Needed for hash table support; probably useful in a lot of other places as well. Signed-off-by: Wolfgang Denk <wd@denx.de> 2010-06-12 06:19:46 +08:00			`#ifndef _ERRNO_H`

			`#include <asm-generic/errno.h>`

			`extern int errno;`

			`#define __set_errno(val) do { errno = val; } while (0)`

lib: errno: introduce errno_str(): returns errno related message The functions error's numbers are standarized - but the error messages are not. The errors are often handled with unclear error messages, so why not use an errno standarized messages. Advantages: - This could decrease the binary size. - Appended with a detailed information, the error message will be clear. This commit introduces new function: - const char *errno_to_str(int errno) The functions returns a pointer to the errno corresponding text message: - if errno is null or positive number - a pointer to "Success" message - if errno is negative - a pointer to errno related message Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Reviewed-by: Tom Rini <trini@ti.com> 2014-10-09 04:48:37 +08:00			`#ifdef CONFIG_ERRNO_STR`
			`const char *errno_str(int errno);`
			`#endif`
Add basic errno support. Needed for hash table support; probably useful in a lot of other places as well. Signed-off-by: Wolfgang Denk <wd@denx.de> 2010-06-12 06:19:46 +08:00			`#endif /* _ERRNO_H */`