Commit dece8476 authored by Thomas Weißschuh's avatar Thomas Weißschuh
Browse files

tools/nolibc: annotate va_list printf formats 

__attribute__(format(printf)) can also be used for functions that take a
va_list argument.

As per the GCC docs:

    For functions where the arguments are not available to be checked
    (such as vprintf), specify the third parameter as zero.

Link: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html


Signed-off-by: default avatarThomas Weißschuh <linux@weissschuh.net>
parent b9e64724

tools/include/nolibc/stdio.h

+2 −2
Original line number Diff line number Diff line
@@ -212,7 +212,7 @@ char *fgets(char *s, int size, FILE *stream) 
 *  - %s

 *  - unknown modifiers are ignored.

 */

static __attribute__((unused))

static __attribute__((unused, format(printf, 2, 0)))

int vfprintf(FILE *stream, const char *fmt, va_list args)

{

	char escape, lpref, c;
@@ -318,7 +318,7 @@ int vfprintf(FILE *stream, const char *fmt, va_list args) 
	return written;

}



static __attribute__((unused))

static __attribute__((unused, format(printf, 1, 0)))

int vprintf(const char *fmt, va_list args)

{

	return vfprintf(stdout, fmt, args);