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authorThomas Weißschuh <linux@weissschuh.net>2023-11-23 22:53:13 +0100
committerThomas Weißschuh <linux@weissschuh.net>2023-12-11 22:38:32 +0100
commitdece8476d6dda087cacb8e105bb70e02a9ef9387 (patch)
tree8ca9eb2beb410d64ff4361666f7820a2493d5bb0 /tools/include
parentb9e64724cd8aeca9e7ab4523a92ccf2ba0cd1de2 (diff)
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: Thomas Weißschuh <linux@weissschuh.net>
Diffstat (limited to 'tools/include')
-rw-r--r--tools/include/nolibc/stdio.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/include/nolibc/stdio.h b/tools/include/nolibc/stdio.h
index d7ef43973916..16cd4d807251 100644
--- a/tools/include/nolibc/stdio.h
+++ b/tools/include/nolibc/stdio.h
@@ -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);