kernel-ark/arch/i386/oprofile/init.c
Linus Torvalds 1da177e4c3 Linux-2.6.12-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!
2005-04-16 15:20:36 -07:00

49 lines
924 B
C

/**
* @file init.c
*
* @remark Copyright 2002 OProfile authors
* @remark Read the file COPYING
*
* @author John Levon <levon@movementarian.org>
*/
#include <linux/oprofile.h>
#include <linux/init.h>
#include <linux/errno.h>
/* We support CPUs that have performance counters like the Pentium Pro
* with the NMI mode driver.
*/
extern int nmi_init(struct oprofile_operations * ops);
extern int nmi_timer_init(struct oprofile_operations * ops);
extern void nmi_exit(void);
extern void x86_backtrace(struct pt_regs * const regs, unsigned int depth);
int __init oprofile_arch_init(struct oprofile_operations * ops)
{
int ret;
ret = -ENODEV;
#ifdef CONFIG_X86_LOCAL_APIC
ret = nmi_init(ops);
#endif
#ifdef CONFIG_X86_IO_APIC
if (ret < 0)
ret = nmi_timer_init(ops);
#endif
ops->backtrace = x86_backtrace;
return ret;
}
void oprofile_arch_exit(void)
{
#ifdef CONFIG_X86_LOCAL_APIC
nmi_exit();
#endif
}