compiler.h File Reference

#include <linux/compiler_types.h>

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Macros
#define	likely(x)   (x)
#define	unlikely(x)   (x)
#define	__bitwise
#define	__force
#define	__user
#define	__kernel
#define	__iomem
#define	fallthrough   do {} while (0)
#define	__must_check   __attribute__((warn_unused_result))
#define	__sched
#define	__printf(fmt_idx, arg_idx)   __attribute__((__format__(__printf__, fmt_idx, arg_idx)))
#define	__same_type(a, b)   __builtin_types_compatible_p(typeof(a), typeof(b))
#define	OPTIMIZER_HIDE_VAR(var)    __asm__ ("" : "=r" (var) : "0" (var))
#define	__BUILD_BUG_ON_ZERO_MSG(e, msg, ...)    ((int)(0 * sizeof(struct {_Static_assert(!(e), msg);})))
#define	__is_array(a)   (!__same_type((a), &(a)[0]))
#define	__must_be_array(a)
#define	__is_constexpr(x)    (sizeof(int) == sizeof(*(8 ? ((void *)((long)(x) * 0l)) : (int *)8)))
#define	__read_mostly

Macro Definition Documentation

__bitwise

#define __bitwise

__BUILD_BUG_ON_ZERO_MSG

#define __BUILD_BUG_ON_ZERO_MSG	(		e,
			msg,
			...
	)		((int)(0 * sizeof(struct {_Static_assert(!(e), msg);})))

__force

#define __force

__iomem

#define __iomem

__is_array

#define __is_array

(

a

)

(!__same_type((a), &(a)[0]))

__is_constexpr

#define __is_constexpr

(

x

)

(sizeof(int) == sizeof(*(8 ? ((void *)((long)(x) * 0l)) : (int *)8)))

__kernel

#define __kernel

__must_be_array

#define __must_be_array

(

a

)

Value:

                        __BUILD_BUG_ON_ZERO_MSG(!__is_array(a), \
                        "must be array")

__must_check

#define __must_check   __attribute__((warn_unused_result))

__printf

#define __printf	(		fmt_idx,
			arg_idx
	)		__attribute__((__format__(__printf__, fmt_idx, arg_idx)))

__read_mostly

int debug_locks_silent __read_mostly

__same_type

#define __same_type	(		a,
			b
	)		__builtin_types_compatible_p(typeof(a), typeof(b))

__sched

#define __sched

__user

#define __user

fallthrough

#define fallthrough   do {} while (0)

likely

#define likely

(

x

)

(x)

OPTIMIZER_HIDE_VAR

#define OPTIMIZER_HIDE_VAR

(

var

)

__asm__ ("" : "=r" (var) : "0" (var))

unlikely

#define unlikely

(

x

)

(x)