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1da177e4 LT |
1 | #ifndef _LINUX_PROFILE_H |
2 | #define _LINUX_PROFILE_H | |
3 | ||
4 | #ifdef __KERNEL__ | |
5 | ||
6 | #include <linux/kernel.h> | |
1da177e4 LT |
7 | #include <linux/init.h> |
8 | #include <linux/cpumask.h> | |
9 | #include <asm/errno.h> | |
10 | ||
11 | #define CPU_PROFILING 1 | |
12 | #define SCHED_PROFILING 2 | |
13 | ||
14 | struct proc_dir_entry; | |
15 | struct pt_regs; | |
772a0dc5 | 16 | struct notifier_block; |
1da177e4 LT |
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 | ||
1da177e4 LT |
35 | struct task_struct; |
36 | struct mm_struct; | |
37 | ||
38 | /* task is in do_exit() */ | |
39 | void profile_task_exit(struct task_struct * task); | |
40 | ||
41 | /* task is dead, free task struct ? Returns 1 if | |
42 | * the task was taken, 0 if the task should be freed. | |
43 | */ | |
44 | int profile_handoff_task(struct task_struct * task); | |
45 | ||
46 | /* sys_munmap */ | |
47 | void profile_munmap(unsigned long addr); | |
48 | ||
49 | int task_handoff_register(struct notifier_block * n); | |
50 | int task_handoff_unregister(struct notifier_block * n); | |
51 | ||
52 | int profile_event_register(enum profile_type, struct notifier_block * n); | |
53 | int profile_event_unregister(enum profile_type, struct notifier_block * n); | |
54 | ||
55 | int register_timer_hook(int (*hook)(struct pt_regs *)); | |
56 | void unregister_timer_hook(int (*hook)(struct pt_regs *)); | |
57 | ||
58 | /* Timer based profiling hook */ | |
59 | extern int (*timer_hook)(struct pt_regs *); | |
60 | ||
61 | struct pt_regs; | |
62 | ||
63 | #else | |
64 | ||
65 | static inline int task_handoff_register(struct notifier_block * n) | |
66 | { | |
67 | return -ENOSYS; | |
68 | } | |
69 | ||
70 | static inline int task_handoff_unregister(struct notifier_block * n) | |
71 | { | |
72 | return -ENOSYS; | |
73 | } | |
74 | ||
75 | static inline int profile_event_register(enum profile_type t, struct notifier_block * n) | |
76 | { | |
77 | return -ENOSYS; | |
78 | } | |
79 | ||
80 | static inline int profile_event_unregister(enum profile_type t, struct notifier_block * n) | |
81 | { | |
82 | return -ENOSYS; | |
83 | } | |
84 | ||
85 | #define profile_task_exit(a) do { } while (0) | |
86 | #define profile_handoff_task(a) (0) | |
87 | #define profile_munmap(a) do { } while (0) | |
88 | ||
89 | static inline int register_timer_hook(int (*hook)(struct pt_regs *)) | |
90 | { | |
91 | return -ENOSYS; | |
92 | } | |
93 | ||
94 | static inline void unregister_timer_hook(int (*hook)(struct pt_regs *)) | |
95 | { | |
96 | return; | |
97 | } | |
98 | ||
99 | #endif /* CONFIG_PROFILING */ | |
100 | ||
101 | #endif /* __KERNEL__ */ | |
102 | ||
103 | #endif /* _LINUX_PROFILE_H */ |