1 /**
2  * @file init.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/oprofile.h>
12 #include <linux/init.h>
13 #include <linux/errno.h>
14 
15 extern int perfmon_init(struct oprofile_operations *ops);
16 extern void perfmon_exit(void);
17 extern void ia64_backtrace(struct pt_regs * const regs, unsigned int depth);
18 
oprofile_arch_init(struct oprofile_operations * ops)19 int __init oprofile_arch_init(struct oprofile_operations *ops)
20 {
21 	int ret = -ENODEV;
22 
23 #ifdef CONFIG_PERFMON
24 	/* perfmon_init() can fail, but we have no way to report it */
25 	ret = perfmon_init(ops);
26 #endif
27 	ops->backtrace = ia64_backtrace;
28 
29 	return ret;
30 }
31 
32 
oprofile_arch_exit(void)33 void oprofile_arch_exit(void)
34 {
35 #ifdef CONFIG_PERFMON
36 	perfmon_exit();
37 #endif
38 }
39