[mirror_ubuntu-bionic-kernel.git] / include / linux / profile.h

#ifndef _LINUX_PROFILE_H
#define _LINUX_PROFILE_H

#ifdef __KERNEL__

#include <linux/kernel.h>
#include <linux/config.h>
#include <linux/init.h>
#include <linux/cpumask.h>
#include <asm/errno.h>

#define CPU_PROFILING	1
#define SCHED_PROFILING	2

struct proc_dir_entry;
struct pt_regs;

/* init basic kernel profiler */
void __init profile_init(void);
void profile_tick(int, struct pt_regs *);
void profile_hit(int, void *);
#ifdef CONFIG_PROC_FS
void create_prof_cpu_mask(struct proc_dir_entry *);
#else
#define create_prof_cpu_mask(x)			do { (void)(x); } while (0)
#endif

enum profile_type {
	PROFILE_TASK_EXIT,
	PROFILE_MUNMAP
};

#ifdef CONFIG_PROFILING

struct notifier_block;
struct task_struct;
struct mm_struct;

/* task is in do_exit() */
void profile_task_exit(struct task_struct * task);

/* task is dead, free task struct ? Returns 1 if
 * the task was taken, 0 if the task should be freed.
 */
int profile_handoff_task(struct task_struct * task);

/* sys_munmap */
void profile_munmap(unsigned long addr);

int task_handoff_register(struct notifier_block * n);
int task_handoff_unregister(struct notifier_block * n);

int profile_event_register(enum profile_type, struct notifier_block * n);
int profile_event_unregister(enum profile_type, struct notifier_block * n);

int register_timer_hook(int (*hook)(struct pt_regs *));
void unregister_timer_hook(int (*hook)(struct pt_regs *));

/* Timer based profiling hook */
extern int (*timer_hook)(struct pt_regs *);

struct pt_regs;

#else

static inline int task_handoff_register(struct notifier_block * n)
{
	return -ENOSYS;
}

static inline int task_handoff_unregister(struct notifier_block * n)
{
	return -ENOSYS;
}

static inline int profile_event_register(enum profile_type t, struct notifier_block * n)
{
	return -ENOSYS;
}

static inline int profile_event_unregister(enum profile_type t, struct notifier_block * n)
{
	return -ENOSYS;
}

#define profile_task_exit(a) do { } while (0)
#define profile_handoff_task(a) (0)
#define profile_munmap(a) do { } while (0)

static inline int register_timer_hook(int (*hook)(struct pt_regs *))
{
	return -ENOSYS;
}

static inline void unregister_timer_hook(int (*hook)(struct pt_regs *))
{
	return;
}

#endif /* CONFIG_PROFILING */

#endif /* __KERNEL__ */

#endif /* _LINUX_PROFILE_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _LINUX_PROFILE_H
	2	#define _LINUX_PROFILE_H
	3
	4	#ifdef __KERNEL__
	5
	6	#include <linux/kernel.h>
	7	#include <linux/config.h>
	8	#include <linux/init.h>
	9	#include <linux/cpumask.h>
	10	#include <asm/errno.h>
	11
	12	#define CPU_PROFILING 1
	13	#define SCHED_PROFILING 2
	14
	15	struct proc_dir_entry;
	16	struct pt_regs;
	17
	18	/* init basic kernel profiler */
	19	void __init profile_init(void);
	20	void profile_tick(int, struct pt_regs *);
	21	void profile_hit(int, void *);
	22	#ifdef CONFIG_PROC_FS
	23	void create_prof_cpu_mask(struct proc_dir_entry *);
	24	#else
	25	#define create_prof_cpu_mask(x) do { (void)(x); } while (0)
	26	#endif
	27
	28	enum profile_type {
	29	PROFILE_TASK_EXIT,
	30	PROFILE_MUNMAP
	31	};
	32
	33	#ifdef CONFIG_PROFILING
	34
	35	struct notifier_block;
	36	struct task_struct;
	37	struct mm_struct;
	38
	39	/* task is in do_exit() */
	40	void profile_task_exit(struct task_struct * task);
	41
	42	/* task is dead, free task struct ? Returns 1 if
	43	* the task was taken, 0 if the task should be freed.
	44	*/
	45	int profile_handoff_task(struct task_struct * task);
	46
	47	/* sys_munmap */
	48	void profile_munmap(unsigned long addr);
	49
	50	int task_handoff_register(struct notifier_block * n);
	51	int task_handoff_unregister(struct notifier_block * n);
	52
	53	int profile_event_register(enum profile_type, struct notifier_block * n);
	54	int profile_event_unregister(enum profile_type, struct notifier_block * n);
	55
	56	int register_timer_hook(int (hook)(struct pt_regs ));
	57	void unregister_timer_hook(int (hook)(struct pt_regs ));
	58
	59	/* Timer based profiling hook */
	60	extern int (timer_hook)(struct pt_regs );
	61
	62	struct pt_regs;
	63
	64	#else
65
66	static inline int task_handoff_register(struct notifier_block * n)
67	{
68	return -ENOSYS;
69	}
70
71	static inline int task_handoff_unregister(struct notifier_block * n)
72	{
73	return -ENOSYS;
74	}
75
76	static inline int profile_event_register(enum profile_type t, struct notifier_block * n)
77	{
78	return -ENOSYS;
79	}
80
81	static inline int profile_event_unregister(enum profile_type t, struct notifier_block * n)
82	{
83	return -ENOSYS;
84	}
85
86	#define profile_task_exit(a) do { } while (0)
87	#define profile_handoff_task(a) (0)
88	#define profile_munmap(a) do { } while (0)
89
90	static inline int register_timer_hook(int (hook)(struct pt_regs ))
91	{
92	return -ENOSYS;
93	}
94
95	static inline void unregister_timer_hook(int (hook)(struct pt_regs ))
96	{
97	return;
98	}
99
100	#endif /* CONFIG_PROFILING */
101
102	#endif /* __KERNEL__ */
103
104	#endif /* _LINUX_PROFILE_H */