aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/oprofile/timer_int.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/oprofile/timer_int.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/oprofile/timer_int.c')
-rw-r--r--drivers/oprofile/timer_int.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/oprofile/timer_int.c b/drivers/oprofile/timer_int.c
new file mode 100644
index 000000000000..710a45f0d734
--- /dev/null
+++ b/drivers/oprofile/timer_int.c
@@ -0,0 +1,46 @@
1/**
2 * @file timer_int.c
3 *
4 * @remark Copyright 2002 OProfile authors
5 * @remark Read the file COPYING
6 *
7 * @author John Levon <levon@movementarian.org>
8 */
9
10#include <linux/kernel.h>
11#include <linux/notifier.h>
12#include <linux/smp.h>
13#include <linux/oprofile.h>
14#include <linux/profile.h>
15#include <linux/init.h>
16#include <asm/ptrace.h>
17
18#include "oprof.h"
19
20static int timer_notify(struct pt_regs *regs)
21{
22 oprofile_add_sample(regs, 0);
23 return 0;
24}
25
26static int timer_start(void)
27{
28 return register_timer_hook(timer_notify);
29}
30
31
32static void timer_stop(void)
33{
34 unregister_timer_hook(timer_notify);
35}
36
37
38void __init oprofile_timer_init(struct oprofile_operations * ops)
39{
40 ops->create_files = NULL;
41 ops->setup = NULL;
42 ops->shutdown = NULL;
43 ops->start = timer_start;
44 ops->stop = timer_stop;
45 ops->cpu_type = "timer";
46}