Index: kernel/generic/include/print.h
===================================================================
--- kernel/generic/include/print.h	(revision 0b4a67a31961a80515a7b28d5b2e27fbb8f7249d)
+++ kernel/generic/include/print.h	(revision 855e0d811a98ab099ac72bbad3f412912d809f2c)
@@ -39,9 +39,22 @@
 #include <stdarg.h>
 
+#ifndef NVERIFY_PRINTF
+
+#define PRINTF_ATTRIBUTE(start, end) \
+	__attribute__((format(gnu_printf, start, end)))
+
+#else /* NVERIFY_PRINTF */
+
+#define PRINTF_ATTRIBUTE(start, end)
+
+#endif /* NVERIFY_PRINTF */
+
 #define EOF  (-1)
 
 extern int puts(const char *s);
-extern int printf(const char *fmt, ...);
-extern int snprintf(char *str, size_t size, const char *fmt, ...);
+extern int printf(const char *fmt, ...)
+    PRINTF_ATTRIBUTE(1, 2);
+extern int snprintf(char *str, size_t size, const char *fmt, ...)
+    PRINTF_ATTRIBUTE(3, 4);
 
 extern int vprintf(const char *fmt, va_list ap);