blob: 9a4de4599c7b99a82f4a38989a309c896f4e73f3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
/*
* S390 Version
* Copyright IBM Corp. 2002, 2011
* Author(s): Thomas Spatzier (tspat@de.ibm.com)
* Author(s): Mahesh Salgaonkar (mahesh@linux.vnet.ibm.com)
* Author(s): Heinz Graalfs (graalfs@linux.vnet.ibm.com)
* Author(s): Andreas Krebbel (krebbel@linux.vnet.ibm.com)
*
* @remark Copyright 2002-2011 OProfile authors
*/
#include <linux/oprofile.h>
#include <linux/init.h>
#include <asm/processor.h>
static int __s390_backtrace(void *data, unsigned long address, int reliable)
{
unsigned int *depth = data;
if (*depth == 0)
return 1;
(*depth)--;
oprofile_add_trace(address);
return 0;
}
static void s390_backtrace(struct pt_regs *regs, unsigned int depth)
{
if (user_mode(regs))
return;
dump_trace(__s390_backtrace, &depth, NULL, regs->gprs[15]);
}
int __init oprofile_arch_init(struct oprofile_operations *ops)
{
ops->backtrace = s390_backtrace;
return 0;
}
void oprofile_arch_exit(void)
{
}
|
