[U-Boot] [PATCH 01/19] lib: errno: introduce errno_str(): returns errno related message

Joakim Tjernlund
2014-10-09T06:46:21Z

> From: Przemyslaw Marczak <p.marczak@samsung.com>
>
> 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.

Having an array of string ptrs adds some extra space needs.
Each str needs a ptr and that ptr needs relocation, 8 bytes on 32 bits

If you want to save space do this instead
static const char const errno_message[] =
"Success\0Operation not permitted\0No such file or directory" etc.
Then count "\0" to find the error msg.

Jocke