#include <linux/kernel.h>
#include <linux/config.h>
#include <linux/init.h>
+#include <linux/cpumask.h>
#include <asm/errno.h>
-/* parse command line */
-int __init profile_setup(char * str);
+#define CPU_PROFILING 1
+#define SCHED_PROFILING 2
+
+struct proc_dir_entry;
+struct pt_regs;
/* 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;
-
+void profile_tick(int, struct pt_regs *);
+void profile_hit(int, void *);
+#ifdef CONFIG_PROC_FS
+void create_prof_cpu_mask(struct proc_dir_entry *);
+#else
+#define create_prof_cpu_mask(x) do { (void)(x); } while (0)
+#endif
enum profile_type {
- EXIT_TASK,
- EXIT_MMAP,
- EXEC_UNMAP
+ PROFILE_TASK_EXIT,
+ PROFILE_MUNMAP
};
#ifdef CONFIG_PROFILING
struct mm_struct;
/* task is in do_exit() */
-void profile_exit_task(struct task_struct * task);
+void profile_task_exit(struct task_struct * task);
-/* change of vma mappings */
-void profile_exec_unmap(struct mm_struct * mm);
+/* 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);
-/* exit of all vmas for a task */
-void profile_exit_mmap(struct mm_struct * mm);
+/* sys_munmap */
+void profile_munmap(unsigned long addr);
-int profile_event_register(enum profile_type, struct notifier_block * n);
+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_profile_notifier(struct notifier_block * nb);
-int unregister_profile_notifier(struct notifier_block * nb);
+int register_timer_hook(int (*hook)(struct pt_regs *));
+void unregister_timer_hook(int (*hook)(struct pt_regs *));
-struct pt_regs;
+/* Timer based profiling hook */
+extern int (*timer_hook)(struct pt_regs *);
-/* profiling hook activated on each timer interrupt */
-void profile_hook(struct pt_regs * regs);
+struct pt_regs;
#else
-static inline int profile_event_register(enum profile_type t, struct notifier_block * n)
+static inline int task_handoff_register(struct notifier_block * n)
{
return -ENOSYS;
}
-static inline int profile_event_unregister(enum profile_type t, struct notifier_block * n)
+static inline int task_handoff_unregister(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 profile_event_register(enum profile_type t, struct notifier_block * n)
+{
+ return -ENOSYS;
+}
-static inline int register_profile_notifier(struct notifier_block * nb)
+static inline int profile_event_unregister(enum profile_type t, struct notifier_block * n)
{
return -ENOSYS;
}
-static inline int unregister_profile_notifier(struct notifier_block * nb)
+#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;
}
-#define profile_hook(regs) do { } while (0)
+static inline void unregister_timer_hook(int (*hook)(struct pt_regs *))
+{
+ return;
+}
#endif /* CONFIG_PROFILING */