audio: Replace static functions in header file by macros, remove GCC_ATTR

Using macros instead of static functions for dolog and for ldebug
simplifies the code and can also reduce the total code size.

GCC_ATTR was only used in audio_int.h, so it is now unused and
the definition can be removed from compiler.h.
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

audio/audio_int.h

@@ -243,38 +243,13 @@ static inline int audio_ring_dist (int dst, int src, int len)
     return (dst >= src) ? (dst - src) : (len - src + dst);
 }
 
-static void GCC_ATTR dolog (const char *fmt, ...)
-{
-    va_list ap;
-
-    va_start (ap, fmt);
-    AUD_vlog (AUDIO_CAP, fmt, ap);
-    va_end (ap);
-}
+#define dolog(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
 
 #ifdef DEBUG
-static void GCC_ATTR ldebug (const char *fmt, ...)
-{
-    va_list ap;
-
-    va_start (ap, fmt);
-    AUD_vlog (AUDIO_CAP, fmt, ap);
-    va_end (ap);
-}
+#define ldebug(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
 #else
-#if defined NDEBUG && defined __GNUC__
-#define ldebug(...)
-#elif defined NDEBUG && defined _MSC_VER
-#define ldebug __noop
-#else
-static void GCC_ATTR ldebug (const char *fmt, ...)
-{
-    (void) fmt;
-}
+#define ldebug(fmt, ...) (void)0
 #endif
-#endif
-
-#undef GCC_ATTR
 
 #define AUDIO_STRINGIFY_(n) #n
 #define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n)

include/qemu/compiler.h

@@ -38,11 +38,9 @@
 #if defined __GNUC__
 # if !QEMU_GNUC_PREREQ(4, 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)))
 #  if defined(_WIN32)
     /* Map __printf__ to __gnu_printf__ because we want standard format strings
@@ -51,7 +49,6 @@
 #  endif
 # endif
 #else
-#define GCC_ATTR /**/
 #define GCC_FMT_ATTR(n, m)
 #endif