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>
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)
30 int have_fpx_regs = 1;
31 int save_fpx_registers(int pid, unsigned long *fp_regs)
33 if (ptrace(PTRACE_GETFPXREGS, pid, 0, fp_regs) < 0)
38 int restore_fpx_registers(int pid, unsigned long *fp_regs)
40 if (ptrace(PTRACE_SETFPXREGS, pid, 0, fp_regs) < 0)
45 int get_fp_registers(int pid, unsigned long *regs)
48 return save_fpx_registers(pid, regs);
50 return save_fp_registers(pid, regs);
53 int put_fp_registers(int pid, unsigned long *regs)
56 return restore_fpx_registers(pid, regs);
58 return restore_fp_registers(pid, regs);
61 void arch_init_registers(int pid)
63 struct user_fpxregs_struct fpx_regs;
66 err = ptrace(PTRACE_GETFPXREGS, pid, 0, &fpx_regs);
71 panic("check_ptrace : PTRACE_GETFPXREGS failed, errno = %d",
78 int get_fp_registers(int pid, unsigned long *regs)
80 return save_fp_registers(pid, regs);
83 int put_fp_registers(int pid, unsigned long *regs)
85 return restore_fp_registers(pid, regs);
90 unsigned long get_thread_reg(int reg, jmp_buf *buf)
102 return buf[0]->__rip;
104 return buf[0]->__rsp;
106 return buf[0]->__rbp;
109 printk(UM_KERN_ERR "get_thread_regs - unknown register %d\n",