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>
10 #include "kern_constants.h"
13 #include "sysdep/ptrace_user.h"
15 int save_fp_registers(int pid, unsigned long *fp_regs)
17 if (ptrace(PTRACE_GETFPREGS, pid, 0, fp_regs) < 0)
22 int restore_fp_registers(int pid, unsigned long *fp_regs)
24 if (ptrace(PTRACE_SETFPREGS, pid, 0, fp_regs) < 0)
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 unsigned long get_thread_reg(int reg, jmp_buf *buf)
53 printk(UM_KERN_ERR "get_thread_regs - unknown register %d\n",
59 int have_fpx_regs = 1;
61 int get_fp_registers(int pid, unsigned long *regs)
64 return save_fpx_registers(pid, regs);
66 return save_fp_registers(pid, regs);
69 int put_fp_registers(int pid, unsigned long *regs)
72 return restore_fpx_registers(pid, regs);
74 return restore_fp_registers(pid, regs);
77 void arch_init_registers(int pid)
79 struct user_fpxregs_struct fpx_regs;
82 err = ptrace(PTRACE_GETFPXREGS, pid, 0, &fpx_regs);
87 panic("check_ptrace : PTRACE_GETFPXREGS failed, errno = %d",