From: Marc-André Lureau <marcandre.lureau@redhat.com>
QEMU requires Clang or GCC, that define and support __GNUC__ extensions.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
include/qemu/compiler.h | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h
index 6212295e52..5e6cf2c8e8 100644
--- a/include/qemu/compiler.h
+++ b/include/qemu/compiler.h
@@ -64,14 +64,10 @@
(offsetof(container, field) + sizeof_field(container, field))
/* Convert from a base type to a parent type, with compile time checking. */
-#ifdef __GNUC__
#define DO_UPCAST(type, field, dev) ( __extension__ ( { \
char __attribute__((unused)) offset_must_be_zero[ \
-offsetof(type, field)]; \
container_of(dev, type, field);}))
-#else
-#define DO_UPCAST(type, field, dev) container_of(dev, type, field)
-#endif
#define typeof_field(type, field) typeof(((type *)0)->field)
#define type_check(t1,t2) ((t1*)0 - (t2*)0)
@@ -102,7 +98,7 @@
#if defined(__clang__)
/* clang doesn't support gnu_printf, so use printf. */
# define GCC_FMT_ATTR(n, m) __attribute__((format(printf, n, m)))
-#elif defined(__GNUC__)
+#else
/* Use gnu_printf (qemu uses standard format strings). */
# define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m)))
# if defined(_WIN32)
@@ -112,8 +108,6 @@
*/
# define __printf__ __gnu_printf__
# endif
-#else
-#define GCC_FMT_ATTR(n, m)
#endif
#ifndef __has_warning
--
2.29.0
Peter, Paolo, anyone to give a review?
thanks