/** * @file timer_int.c * * @remark Copyright 2002 OProfile authors * @remark Read the file COPYING * * @author John Levon <levon@movementarian.org> */ #include <linux/kernel.h> #include <linux/notifier.h> #include <linux/smp.h> #include <linux/oprofile.h> #include <linux/profile.h> #include <linux/init.h> #include <asm/ptrace.h> #include "oprof.h" static int timer_notify(struct pt_regs *regs) { oprofile_add_sample(regs, 0); return 0; } static int timer_start(void) { return register_timer_hook(timer_notify); } static void timer_stop(void) { unregister_timer_hook(timer_notify); } void __init oprofile_timer_init(struct oprofile_operations *ops) { ops->create_files = NULL; ops->setup = NULL; ops->shutdown = NULL; ops->start = timer_start; ops->stop = timer_stop; ops->cpu_type = "timer"; }