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authorPrzemyslaw Marczak <p.marczak@samsung.com>2014-10-08 22:48:37 +0200
committerSimon Glass <sjg@chromium.org>2014-12-11 13:18:41 -0700
commit59345b1f0f9941d32b45d0e27401355b34106357 (patch)
treecf1af3b0281bf8962f503bfebca60b3e6fddbe4d /include/errno.h
parent115066666c251c2a481eeff7b700da14eba91d10 (diff)
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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>
Diffstat (limited to 'include/errno.h')
-rw-r--r--include/errno.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/errno.h b/include/errno.h
index e24a33b..14ac3cb 100644
--- a/include/errno.h
+++ b/include/errno.h
@@ -6,4 +6,7 @@ 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 */