mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-25 04:30:02 +00:00
0f7fdd3475
A packed struct needs different gcc attributes for compilations with MinGW compilers because glib-2.0 adds compiler flag -mms-bitfields which modifies the packing algorithm. Attribute gcc_struct reverses the negative effects of -mms-bitfields. QEMU_PACKED sets this attribute and must be used for any packed struct which is affected by -mms-bitfields. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
/* public domain */
|
|
|
|
#ifndef COMPILER_H
|
|
#define COMPILER_H
|
|
|
|
#include "config-host.h"
|
|
|
|
#define QEMU_NORETURN __attribute__ ((__noreturn__))
|
|
#ifdef CONFIG_GCC_ATTRIBUTE_WARN_UNUSED_RESULT
|
|
#define QEMU_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
|
|
#else
|
|
#define QEMU_WARN_UNUSED_RESULT
|
|
#endif
|
|
|
|
#if defined(_WIN32)
|
|
# define QEMU_PACKED __attribute__((gcc_struct, packed))
|
|
#else
|
|
# define QEMU_PACKED __attribute__((packed))
|
|
#endif
|
|
|
|
#define QEMU_BUILD_BUG_ON(x) \
|
|
typedef char qemu_build_bug_on__##__LINE__[(x)?-1:1];
|
|
|
|
#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
|
|
|
|
#endif /* COMPILER_H */
|