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 "kern_constants.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)
27 int save_fpx_registers(int pid, unsigned long *fp_regs)
29 if (ptrace(PTRACE_GETFPXREGS, pid, 0, fp_regs) < 0)
34 int restore_fpx_registers(int pid, unsigned long *fp_regs)
36 if (ptrace(PTRACE_SETFPXREGS, pid, 0, fp_regs) < 0)
41 unsigned long get_thread_reg(int reg, jmp_buf *buf)
51 printk(UM_KERN_ERR "get_thread_regs - unknown register %d\n",
57 int have_fpx_regs = 1;
59 int get_fp_registers(int pid, unsigned long *regs)
62 return save_fpx_registers(pid, regs);
64 return save_fp_registers(pid, regs);
67 int put_fp_registers(int pid, unsigned long *regs)
70 return restore_fpx_registers(pid, regs);
72 return restore_fp_registers(pid, regs);
75 void arch_init_registers(int pid)
77 unsigned long fpx_regs[HOST_XFP_SIZE];
80 err = ptrace(PTRACE_GETFPXREGS, pid, 0, fpx_regs);
85 panic("check_ptrace : PTRACE_GETFPXREGS failed, errno = %d",