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/*
* 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 "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("get_thread_regs - unknown register %d\n", reg);
return 0;
}
}
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