Commit acab7bcd authored by Willy Tarreau's avatar Willy Tarreau Committed by Paul E. McKenney
Browse files

tools/nolibc/stdio: add perror() to report the errno value 



It doesn't contain the text for the error codes, but instead displays
"errno=" followed by the errno value. Just like the regular errno, if
a non-empty message is passed, it's placed followed with ": " on the
output before the errno code. The message is emitted on stderr.

Signed-off-by: default avatarWilly Tarreau <w@1wt.eu>
Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
parent 51469d5a

tools/include/nolibc/stdio.h

+6 −0
Original line number Diff line number Diff line
@@ -286,4 +286,10 @@ int printf(const char *fmt, ...) 
	return ret;

}



static __attribute__((unused))

void perror(const char *msg)

{

	fprintf(stderr, "%s%serrno=%d\n", (msg && *msg) ? msg : "", (msg && *msg) ? ": " : "", errno);

}



#endif /* _NOLIBC_STDIO_H */