blob: bdf72a5ee0ffdae47764d83ae9d43c7cab79a1de [file] [log] [blame] [edit]
/**
* @file op_get_interface.c
* Determine which oprofile kernel interface used
*
* @remark Copyright 2002 OProfile authors
* @remark Read the file COPYING
*
* @author Will Cohen
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "op_cpu_type.h"
#include "op_file.h"
op_interface op_get_interface(void)
{
static op_interface current_interface = OP_INTERFACE_NO_GOOD;
if (current_interface != OP_INTERFACE_NO_GOOD)
return current_interface;
if (op_file_readable("/proc/sys/dev/oprofile/cpu_type")) {
current_interface = OP_INTERFACE_24;
} else if (op_file_readable("/dev/oprofile/cpu_type")) {
current_interface = OP_INTERFACE_26;
}
return current_interface;
}