diff options
| author | Gabe Black <gabeblack@google.com> | 2012-10-02 00:32:59 -0700 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2012-11-07 18:36:14 +0100 |
| commit | e88e1ab864c636c020e124846f908439c1080d16 (patch) | |
| tree | d32e6509ad7629e3ace35125ea00b8f73bd9f810 /payloads/libpayload/include | |
| parent | 5c27e82073ec6bb96a672b18c2c66773ae887ebf (diff) | |
libpayload: Add the format attribute to functions in stdio.h.
gcc recognizes the format function attribute which tells the compiler to expect
the format string to look a certain way and for its arguments to be of
appropriate types. This helps to prevent errors like the one that was recently
fixed in libpayload's assert.
Change-Id: I284ae8bff32f72cfd2d1a250d126c729b38a5730
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: http://review.coreboot.org/1731
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'payloads/libpayload/include')
| -rw-r--r-- | payloads/libpayload/include/stdio.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/payloads/libpayload/include/stdio.h b/payloads/libpayload/include/stdio.h index 924d17e849..d2db640118 100644 --- a/payloads/libpayload/include/stdio.h +++ b/payloads/libpayload/include/stdio.h @@ -42,10 +42,14 @@ extern FILE *stdout, *stdin, *stderr; * @defgroup printf Print functions * @{ */ -int snprintf(char *str, size_t size, const char *fmt, ...); -int sprintf(char *str, const char *fmt, ...); -int printf(const char *fmt, ...); -int fprintf(FILE *file, const char *fmt, ...); +int snprintf(char *str, size_t size, const char *fmt, ...) + __attribute__ ((format (printf, 3, 4))); +int sprintf(char *str, const char *fmt, ...) + __attribute__ ((format (printf, 2, 3))); +int printf(const char *fmt, ...) + __attribute__ ((format (printf, 1, 2))); +int fprintf(FILE *file, const char *fmt, ...) + __attribute__ ((format (printf, 2, 3))); /** @} */ void perror(const char *s); |