/** * @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 op_nmi_init(struct oprofile_operations * ops); extern int op_nmi_timer_init(struct oprofile_operations * ops); extern void op_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 = op_nmi_init(ops); #endif #ifdef CONFIG_X86_IO_APIC if (ret < 0) ret = op_nmi_timer_init(ops); #endif ops->backtrace = x86_backtrace; return ret; } void oprofile_arch_exit(void) { #ifdef CONFIG_X86_LOCAL_APIC op_nmi_exit(); #endif }