4 * @remark Copyright 2002 OProfile authors
5 * @remark Read the file COPYING
10 #include <linux/oprofile.h>
11 #include <linux/init.h>
12 #include <linux/errno.h>
15 * We support CPUs that have performance counters like the Pentium Pro
16 * with the NMI mode driver.
19 #ifdef CONFIG_X86_LOCAL_APIC
20 extern int op_nmi_init(struct oprofile_operations *ops);
21 extern void op_nmi_exit(void);
23 static int op_nmi_init(struct oprofile_operations *ops) { return -ENODEV; }
24 static void op_nmi_exit(void) { }
27 extern void x86_backtrace(struct pt_regs * const regs, unsigned int depth);
29 int __init oprofile_arch_init(struct oprofile_operations *ops)
31 ops->backtrace = x86_backtrace;
32 return op_nmi_init(ops);
35 void oprofile_arch_exit(void)