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#ifndef _LINUX_PROFILE_H
#define _LINUX_PROFILE_H
#ifdef __KERNEL__
#include <linux/kernel.h>
#include <linux/config.h>
#include <linux/init.h>
#include <asm/errno.h>
/* parse command line */
int __init profile_setup(char * str);
/* init basic kernel profiler */
void __init profile_init(void);
extern unsigned int * prof_buffer;
extern unsigned long prof_len;
extern unsigned long prof_shift;
extern int prof_on;
enum profile_type {
EXIT_TASK,
EXIT_MMAP,
EXEC_UNMAP
};
#ifdef CONFIG_PROFILING
struct notifier_block;
struct task_struct;
struct mm_struct;
/* task is in do_exit() */
void profile_exit_task(struct task_struct * task);
/* change of vma mappings */
void profile_exec_unmap(struct mm_struct * mm);
/* exit of all vmas for a task */
void profile_exit_mmap(struct mm_struct * mm);
int profile_event_register(enum profile_type, struct notifier_block * n);
int profile_event_unregister(enum profile_type, struct notifier_block * n);
int register_profile_notifier(struct notifier_block * nb);
int unregister_profile_notifier(struct notifier_block * nb);
/* profiling hook activated on each timer interrupt */
void profile_hook(struct pt_regs * regs);
#else
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_exit_task(a) do { } while (0)
#define profile_exec_unmap(a) do { } while (0)
#define profile_exit_mmap(a) do { } while (0)
static inline int register_profile_notifier(struct notifier_block * nb)
{
return -ENOSYS;
}
static inline int unregister_profile_notifier(struct notifier_block * nb)
{
return -ENOSYS;
}
#define profile_hook(regs) do { } while (0)
#endif /* CONFIG_PROFILING */
#endif /* __KERNEL__ */
#endif /* _LINUX_PROFILE_H */
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