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Move macros GCC_ATTR and GCC_FMT_ATTR to common header file 

By moving the definition of GCC_ATTR and GCC_FMT_ATTR
from audio_int.h to qemu-common.h these macros are
now generally available for further patches which add
the gcc format attribute.

Newer gcc versions support format gnu_printf which is
better suited for use in QEMU than format printf
(QEMU always uses standard format strings (even with mingw32)).

V2: Use correct operator '==' (instead of '=')

Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Stefan Weil 2010-09-21 22:27:49 +02:00 committed by Blue Swirl
parent 80bb8cba0a
commit 9c9e7d51bf
2 changed files with 16 additions and 8 deletions
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8
audio/audio_int.h
View File

@ -236,14 +236,6 @@ static inline int audio_ring_dist (int dst, int src, int len)
return (dst >= src) ? (dst - src) : (len - src + dst);
}
#if defined __GNUC__
#define GCC_ATTR __attribute__ ((__unused__, __format__ (__printf__, 1, 2)))
#define GCC_FMT_ATTR(n, m) __attribute__ ((__format__ (__printf__, n, m)))
#else
#define GCC_ATTR /**/
#define GCC_FMT_ATTR(n, m)
#endif
static void GCC_ATTR dolog (const char *fmt, ...)
{
va_list ap;

16
qemu-common.h
View File

@ -70,6 +70,22 @@ struct iovec {
#include <sys/uio.h>
#endif
#if defined __GNUC__
# if (__GNUC__ < 4) || \
defined(__GNUC_MINOR__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 4)
/* gcc versions before 4.4.x don't support gnu_printf, so use printf. */
# define GCC_ATTR __attribute__((__unused__, format(printf, 1, 2)))
# define GCC_FMT_ATTR(n, m) __attribute__((format(printf, n, m)))
# else
/* Use gnu_printf when supported (qemu uses standard format strings). */
# define GCC_ATTR __attribute__((__unused__, format(gnu_printf, 1, 2)))
# define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m)))
# endif
#else
#define GCC_ATTR /**/
#define GCC_FMT_ATTR(n, m)
#endif
#ifdef _WIN32
#define fsync _commit
#define lseek _lseeki64