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