2 * Copyright (C) 2004 PathScale, Inc
3 * Copyright (C) 2004 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
4 * Licensed under the GPL
8 #include <sys/ptrace.h>
11 #include "sysdep/ptrace_user.h"
13 int save_fp_registers(int pid, unsigned long *fp_regs)
15 if (ptrace(PTRACE_GETFPREGS, pid, 0, fp_regs) < 0)
20 int restore_fp_registers(int pid, unsigned long *fp_regs)
22 if (ptrace(PTRACE_SETFPREGS, pid, 0, fp_regs) < 0)
28 int have_fpx_regs = 1;
29 int save_fpx_registers(int pid, unsigned long *fp_regs)
31 if (ptrace(PTRACE_GETFPXREGS, pid, 0, fp_regs) < 0)
36 int restore_fpx_registers(int pid, unsigned long *fp_regs)
38 if (ptrace(PTRACE_SETFPXREGS, pid, 0, fp_regs) < 0)
43 int get_fp_registers(int pid, unsigned long *regs)
46 return save_fpx_registers(pid, regs);
48 return save_fp_registers(pid, regs);
51 int put_fp_registers(int pid, unsigned long *regs)
54 return restore_fpx_registers(pid, regs);
56 return restore_fp_registers(pid, regs);
59 void arch_init_registers(int pid)
61 struct user_fpxregs_struct fpx_regs;
64 err = ptrace(PTRACE_GETFPXREGS, pid, 0, &fpx_regs);
69 panic("check_ptrace : PTRACE_GETFPXREGS failed, errno = %d",
76 int get_fp_registers(int pid, unsigned long *regs)
78 return save_fp_registers(pid, regs);
81 int put_fp_registers(int pid, unsigned long *regs)
83 return restore_fp_registers(pid, regs);
88 unsigned long get_thread_reg(int reg, jmp_buf *buf)
100 return buf[0]->__rip;
102 return buf[0]->__rsp;
104 return buf[0]->__rbp;
107 printk(UM_KERN_ERR "get_thread_regs - unknown register %d\n",