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Add printf format attributes

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When compiling with gcc, we already include the attribute on check_msg()
to give compiler warnings about mismatches between printf() like format
strings and the corresponding arguments.  This patch adds similar
attributes for lexical_error() and die().

Suggested-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
David Gibson 2017-02-28 10:09:45 +11:00
parent f72508e2b6
commit 34a9886a17
2 changed files with 19 additions and 1 deletions
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14
util.h
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@ -27,7 +27,13 @@
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
static inline void __attribute__((noreturn)) die(const char *str, ...)
#ifdef __GNUC__
static inline void
__attribute__((noreturn)) __attribute__((format (printf, 1, 2)))
die(const char *str, ...)
#else
static inline void die(const char *str, ...)
#endif
{
va_list ap;
@ -59,7 +65,13 @@ static inline void *xrealloc(void *p, size_t len)
}
extern char *xstrdup(const char *s);
#ifdef __GNUC__
extern int __attribute__((format (printf, 2, 3)))
xasprintf(char **strp, const char *fmt, ...);
#else
extern int xasprintf(char **strp, const char *fmt, ...);
#endif
extern char *join_path(const char *path, const char *name);
/**