[lttv.git] / markers-userspace / kernel-api.h

/*
 * Kernel API extracted from Linux kernel headers.
 */

#ifndef __KERNEL_API
#define __KERNEL_API

#define DECLARE_IMV(type, name) extern __typeof__(type) name##__imv
#define DEFINE_IMV(type, name)  __typeof__(type) name##__imv

#define likely(x)	__builtin_expect(!!(x), 1)
#define unlikely(x)	__builtin_expect(!!(x), 0)

/**
 * imv_read - read immediate variable
 * @name: immediate value name
 *
 * Reads the value of @name.
 */
#define imv_read(name)			_imv_read(name)

/**
 * _imv_read - Read immediate value with standard memory load.
 * @name: immediate value name
 *
 * Force a data read of the immediate value instead of the immediate value
 * based mechanism. Useful for __init and __exit section data read.
 */
#define _imv_read(name)		(name##__imv)

#endif
Commit	Line	Data
99c5a086	1	/*
	2	* Kernel API extracted from Linux kernel headers.
	3	*/
	4
	5	#ifndef __KERNEL_API
	6	#define __KERNEL_API
	7
	8	#define DECLARE_IMV(type, name) extern __typeof__(type) name##__imv
	9	#define DEFINE_IMV(type, name) __typeof__(type) name##__imv
	10
	11	#define likely(x) __builtin_expect(!!(x), 1)
	12	#define unlikely(x) __builtin_expect(!!(x), 0)
	13
	14	/**
	15	* imv_read - read immediate variable
	16	* @name: immediate value name
	17	*
	18	* Reads the value of @name.
	19	*/
	20	#define imv_read(name) _imv_read(name)
	21
	22	/**
	23	* _imv_read - Read immediate value with standard memory load.
	24	* @name: immediate value name
	25	*
	26	* Force a data read of the immediate value instead of the immediate value
	27	* based mechanism. Useful for __init and __exit section data read.
	28	*/
	29	#define _imv_read(name) (name##__imv)
	30
	31	#endif