blob: a375853337a703d7764dded31549725cf17376e8 (
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
|
/*
* Copyright (C) 2006 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
#include <errno.h>
#include <sys/ptrace.h>
#define __FRAME_OFFSETS
#include <asm/ptrace.h>
#include "kern_constants.h"
#include "longjmp.h"
#include "user.h"
int save_fp_registers(int pid, unsigned long *fp_regs)
{
if (ptrace(PTRACE_GETFPREGS, pid, 0, fp_regs) < 0)
return -errno;
return 0;
}
int restore_fp_registers(int pid, unsigned long *fp_regs)
{
if (ptrace(PTRACE_SETFPREGS, pid, 0, fp_regs) < 0)
return -errno;
return 0;
}
unsigned long get_thread_reg(int reg, jmp_buf *buf)
{
switch (reg) {
case RIP:
return buf[0]->__rip;
case RSP:
return buf[0]->__rsp;
case RBP:
return buf[0]->__rbp;
default:
printk(UM_KERN_ERR "get_thread_regs - unknown register %d\n",
reg);
return 0;
}
}
|
