1 #ifndef _LINUX_PROFILE_H
2 #define _LINUX_PROFILE_H
4 #include <linux/kernel.h>
5 #include <linux/init.h>
6 #include <linux/cpumask.h>
7 #include <linux/cache.h>
11 #define CPU_PROFILING 1
12 #define SCHED_PROFILING 2
13 #define SLEEP_PROFILING 3
14 #define KVM_PROFILING 4
16 struct proc_dir_entry;
18 struct notifier_block;
20 #if defined(CONFIG_PROFILING) && defined(CONFIG_PROC_FS)
21 void create_prof_cpu_mask(struct proc_dir_entry *de);
22 int create_proc_profile(void);
24 static inline void create_prof_cpu_mask(struct proc_dir_entry *de)
28 static inline int create_proc_profile(void)
39 #ifdef CONFIG_PROFILING
41 extern int prof_on __read_mostly;
43 /* init basic kernel profiler */
44 int profile_init(void);
45 int profile_setup(char *str);
46 void profile_tick(int type);
49 * Add multiple profiler hits to a given address:
51 void profile_hits(int type, void *ip, unsigned int nr_hits);
54 * Single profiler hit:
56 static inline void profile_hit(int type, void *ip)
59 * Speedup for the common (no profiling enabled) case:
61 if (unlikely(prof_on == type))
62 profile_hits(type, ip, 1);
68 /* task is in do_exit() */
69 void profile_task_exit(struct task_struct * task);
71 /* task is dead, free task struct ? Returns 1 if
72 * the task was taken, 0 if the task should be freed.
74 int profile_handoff_task(struct task_struct * task);
77 void profile_munmap(unsigned long addr);
79 int task_handoff_register(struct notifier_block * n);
80 int task_handoff_unregister(struct notifier_block * n);
82 int profile_event_register(enum profile_type, struct notifier_block * n);
83 int profile_event_unregister(enum profile_type, struct notifier_block * n);
85 int register_timer_hook(int (*hook)(struct pt_regs *));
86 void unregister_timer_hook(int (*hook)(struct pt_regs *));
94 static inline int profile_init(void)
99 static inline void profile_tick(int type)
104 static inline void profile_hits(int type, void *ip, unsigned int nr_hits)
109 static inline void profile_hit(int type, void *ip)
114 static inline int task_handoff_register(struct notifier_block * n)
119 static inline int task_handoff_unregister(struct notifier_block * n)
124 static inline int profile_event_register(enum profile_type t, struct notifier_block * n)
129 static inline int profile_event_unregister(enum profile_type t, struct notifier_block * n)
134 #define profile_task_exit(a) do { } while (0)
135 #define profile_handoff_task(a) (0)
136 #define profile_munmap(a) do { } while (0)
138 static inline int register_timer_hook(int (*hook)(struct pt_regs *))
143 static inline void unregister_timer_hook(int (*hook)(struct pt_regs *))
148 #endif /* CONFIG_PROFILING */
150 #endif /* _LINUX_PROFILE_H */