1 files changed, 104 insertions, 0 deletions
diff --git a/include/linux/profile.h b/include/linux/profile.h
new file mode 100644
index 00000000000..026969a5595
--- /dev/null
+++ b/include/linux/profile.h
@@ -0,0 +1,104 @@
+#ifndef _LINUX_PROFILE_H
+#define _LINUX_PROFILE_H
+
+#ifdef __KERNEL__
+
+#include <linux/kernel.h>
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/cpumask.h>
+#include <asm/errno.h>
+
+#define CPU_PROFILING	1
+#define SCHED_PROFILING	2
+
+struct proc_dir_entry;
+struct pt_regs;
+
+/* init basic kernel profiler */
+void __init profile_init(void);
+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 {
+	PROFILE_TASK_EXIT,
+	PROFILE_MUNMAP
+};
+
+#ifdef CONFIG_PROFILING
+
+struct notifier_block;
+struct task_struct;
+struct mm_struct;
+
+/* task is in do_exit() */
+void profile_task_exit(struct task_struct * task);
+
+/* 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);
+
+/* sys_munmap */
+void profile_munmap(unsigned long addr);
+
+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_timer_hook(int (*hook)(struct pt_regs *));
+void unregister_timer_hook(int (*hook)(struct pt_regs *));
+
+/* Timer based profiling hook */
+extern int (*timer_hook)(struct pt_regs *);
+
+struct pt_regs;
+
+#else
+
+static inline int task_handoff_register(struct notifier_block * n)
+{
+	return -ENOSYS;
+}
+
+static inline int task_handoff_unregister(struct notifier_block * n)
+{
+	return -ENOSYS;
+}
+
+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_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;
+}
+
+static inline void unregister_timer_hook(int (*hook)(struct pt_regs *))
+{
+	return;
+}
+
+#endif /* CONFIG_PROFILING */
+
+#endif /* __KERNEL__ */
+
+#endif /* _LINUX_PROFILE_H */