cebbd3fb80
Cc: Adrian Bunk <bunk@kernel.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
143 lines
2.8 KiB
C
143 lines
2.8 KiB
C
#ifndef _LINUX_PROFILE_H
|
|
#define _LINUX_PROFILE_H
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/cpumask.h>
|
|
#include <linux/cache.h>
|
|
|
|
#include <asm/errno.h>
|
|
|
|
#define CPU_PROFILING 1
|
|
#define SCHED_PROFILING 2
|
|
#define SLEEP_PROFILING 3
|
|
#define KVM_PROFILING 4
|
|
|
|
struct proc_dir_entry;
|
|
struct pt_regs;
|
|
struct notifier_block;
|
|
|
|
#if defined(CONFIG_PROFILING) && defined(CONFIG_PROC_FS)
|
|
void create_prof_cpu_mask(struct proc_dir_entry *de);
|
|
#else
|
|
static inline void create_prof_cpu_mask(struct proc_dir_entry *de)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
enum profile_type {
|
|
PROFILE_TASK_EXIT,
|
|
PROFILE_MUNMAP
|
|
};
|
|
|
|
#ifdef CONFIG_PROFILING
|
|
|
|
extern int prof_on __read_mostly;
|
|
|
|
/* init basic kernel profiler */
|
|
void __init profile_init(void);
|
|
void profile_tick(int type);
|
|
|
|
/*
|
|
* Add multiple profiler hits to a given address:
|
|
*/
|
|
void profile_hits(int type, void *ip, unsigned int nr_hits);
|
|
|
|
/*
|
|
* Single profiler hit:
|
|
*/
|
|
static inline void profile_hit(int type, void *ip)
|
|
{
|
|
/*
|
|
* Speedup for the common (no profiling enabled) case:
|
|
*/
|
|
if (unlikely(prof_on == type))
|
|
profile_hits(type, ip, 1);
|
|
}
|
|
|
|
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 *));
|
|
|
|
struct pt_regs;
|
|
|
|
#else
|
|
|
|
#define prof_on 0
|
|
|
|
static inline void profile_init(void)
|
|
{
|
|
return;
|
|
}
|
|
|
|
static inline void profile_tick(int type)
|
|
{
|
|
return;
|
|
}
|
|
|
|
static inline void profile_hits(int type, void *ip, unsigned int nr_hits)
|
|
{
|
|
return;
|
|
}
|
|
|
|
static inline void profile_hit(int type, void *ip)
|
|
{
|
|
return;
|
|
}
|
|
|
|
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 /* _LINUX_PROFILE_H */
|