cdefs.h

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#ifndef __CDEFS_H__
#define __CDEFS_H__
 
#include <stddef.h>
 
#define PACKED          __attribute__((__packed__))
#define PERCORE         __attribute__((section(".data.percore")))
 
#define INLINE          inline
#define ALWAYS_INLINE   __attribute__((__always_inline__))
 
#define NO_RETURN       __attribute__((noreturn))
#define UNREACHABLE     __builtin_unreachable
 
#define UNUSED          __attribute__((unused))
 
#define ROUNDUP(_x, _n) (((_x) + (_n) - 1) & ~((_n) - 1))
 
#define __MALLOC        __attribute__((__malloc__))
 
#if __has_extension(c_thread_safety_attributes)
#define __NO_LOCK_ANALYSIS      __attribute__((no_thread_safety_analysis))
#define __LOCKABLE              __attribute__((lockable))
#define __LOCK_EX(_x)           __attribute__((exclusive_lock_function(_x)))
#define __TRYLOCK_EX(_x)        __attribute__((exclusive_trylock_function(_x)))
#define __UNLOCK_EX(_x)         __attribute__((unlock_function(_x)))
#define __LOCK_EX_ASSERT(_x)    __attribute__((assert_exclusive_lock(_x)))
#define __GUARDED_BY(_x)        __attribute__((guarded_by(_x)))
#else
#define __NO_LOCK_ANALYSIS
#define __LOCKABLE
#define __LOCK_EX(_x)
#define __TRYLOCK_EX(_x)
#define __UNLOCK_EX(_x)
#define __LOCK_EX_ASSERT(_x)
#define __GUARDED_BY(_x)
#endif
 
#define __hidden        __attribute__((__visibility__("hidden")))
 
#define __printflike(_fmt, _var) __attribute__((__format__(__printf__, _fmt, _var)))
 
#endif /* __CDEFS_H__ */