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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | #ifndef _LINUX_PROFILE_H |
| 2 | #define _LINUX_PROFILE_H |
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| 3 | |||
| 4 | #ifdef __KERNEL__ |
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| 5 | |||
| 6 | #include <linux/kernel.h> |
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| 7 | #include <linux/config.h> |
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| 8 | #include <linux/init.h> |
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| 9 | #include <asm/errno.h> |
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| 10 | |||
| 11 | /* parse command line */ |
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| 12 | int __init profile_setup(char * str); |
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| 13 | |||
| 14 | /* init basic kernel profiler */ |
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| 15 | void __init profile_init(void); |
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| 16 | |||
| 17 | extern unsigned int * prof_buffer; |
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| 18 | extern unsigned long prof_len; |
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| 19 | extern unsigned long prof_shift; |
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| 20 | extern int prof_on; |
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| 21 | |||
| 22 | |||
| 23 | enum profile_type { |
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| 24 | EXIT_TASK, |
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| 25 | EXIT_MMAP, |
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| 26 | EXEC_UNMAP |
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| 27 | }; |
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| 28 | |||
| 29 | #ifdef CONFIG_PROFILING |
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| 30 | |||
| 31 | struct notifier_block; |
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| 32 | struct task_struct; |
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| 33 | struct mm_struct; |
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| 34 | |||
| 35 | /* task is in do_exit() */ |
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| 36 | void profile_exit_task(struct task_struct * task); |
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| 37 | |||
| 38 | /* change of vma mappings */ |
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| 39 | void profile_exec_unmap(struct mm_struct * mm); |
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| 40 | |||
| 41 | /* exit of all vmas for a task */ |
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| 42 | void profile_exit_mmap(struct mm_struct * mm); |
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| 43 | |||
| 44 | int profile_event_register(enum profile_type, struct notifier_block * n); |
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| 45 | |||
| 46 | int profile_event_unregister(enum profile_type, struct notifier_block * n); |
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| 47 | |||
| 48 | int register_profile_notifier(struct notifier_block * nb); |
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| 49 | int unregister_profile_notifier(struct notifier_block * nb); |
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| 50 | |||
| 51 | struct pt_regs; |
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| 52 | |||
| 53 | /* profiling hook activated on each timer interrupt */ |
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| 54 | void profile_hook(struct pt_regs * regs); |
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| 55 | |||
| 56 | #else |
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| 57 | |||
| 58 | static inline int profile_event_register(enum profile_type t, struct notifier_block * n) |
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| 59 | { |
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| 60 | return -ENOSYS; |
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| 61 | } |
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| 62 | |||
| 63 | static inline int profile_event_unregister(enum profile_type t, struct notifier_block * n) |
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| 64 | { |
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| 65 | return -ENOSYS; |
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| 66 | } |
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| 67 | |||
| 68 | #define profile_exit_task(a) do { } while (0) |
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| 69 | #define profile_exec_unmap(a) do { } while (0) |
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| 70 | #define profile_exit_mmap(a) do { } while (0) |
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| 71 | |||
| 72 | static inline int register_profile_notifier(struct notifier_block * nb) |
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| 73 | { |
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| 74 | return -ENOSYS; |
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| 75 | } |
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| 76 | |||
| 77 | static inline int unregister_profile_notifier(struct notifier_block * nb) |
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| 78 | { |
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| 79 | return -ENOSYS; |
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| 80 | } |
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| 81 | |||
| 82 | #define profile_hook(regs) do { } while (0) |
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| 83 | |||
| 84 | #endif /* CONFIG_PROFILING */ |
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| 85 | |||
| 86 | #endif /* __KERNEL__ */ |
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| 87 | |||
| 88 | #endif /* _LINUX_PROFILE_H */ |