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       1                 :             : /* Fetch live process registers from TID.
       2                 :             :    Copyright (C) 2013 Red Hat, Inc.
       3                 :             :    This file is part of elfutils.
       4                 :             : 
       5                 :             :    This file is free software; you can redistribute it and/or modify
       6                 :             :    it under the terms of either
       7                 :             : 
       8                 :             :      * the GNU Lesser General Public License as published by the Free
       9                 :             :        Software Foundation; either version 3 of the License, or (at
      10                 :             :        your option) any later version
      11                 :             : 
      12                 :             :    or
      13                 :             : 
      14                 :             :      * the GNU General Public License as published by the Free
      15                 :             :        Software Foundation; either version 2 of the License, or (at
      16                 :             :        your option) any later version
      17                 :             : 
      18                 :             :    or both in parallel, as here.
      19                 :             : 
      20                 :             :    elfutils is distributed in the hope that it will be useful, but
      21                 :             :    WITHOUT ANY WARRANTY; without even the implied warranty of
      22                 :             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      23                 :             :    General Public License for more details.
      24                 :             : 
      25                 :             :    You should have received copies of the GNU General Public License and
      26                 :             :    the GNU Lesser General Public License along with this program.  If
      27                 :             :    not, see <http://www.gnu.org/licenses/>.  */
      28                 :             : 
      29                 :             : #ifdef HAVE_CONFIG_H
      30                 :             : # include <config.h>
      31                 :             : #endif
      32                 :             : 
      33                 :             : #include <stdlib.h>
      34                 :             : #if defined(__x86_64__) && defined(__linux__)
      35                 :             : # include <sys/user.h>
      36                 :             : # include <sys/ptrace.h>
      37                 :             : #endif
      38                 :             : 
      39                 :             : #define BACKEND x86_64_
      40                 :             : #include "libebl_CPU.h"
      41                 :             : 
      42                 :             : bool
      43                 :           8 : x86_64_set_initial_registers_tid (pid_t tid __attribute__ ((unused)),
      44                 :             :                           ebl_tid_registers_t *setfunc __attribute__ ((unused)),
      45                 :             :                                   void *arg __attribute__ ((unused)))
      46                 :             : {
      47                 :             : #if !defined(__x86_64__) || !defined(__linux__)
      48                 :             :   return false;
      49                 :             : #else /* __x86_64__ */
      50                 :           8 :   struct user_regs_struct user_regs;
      51         [ +  - ]:           8 :   if (ptrace (PTRACE_GETREGS, tid, NULL, &user_regs) != 0)
      52                 :             :     return false;
      53                 :           8 :   Dwarf_Word dwarf_regs[17];
      54                 :           8 :   dwarf_regs[0] = user_regs.rax;
      55                 :           8 :   dwarf_regs[1] = user_regs.rdx;
      56                 :           8 :   dwarf_regs[2] = user_regs.rcx;
      57                 :           8 :   dwarf_regs[3] = user_regs.rbx;
      58                 :           8 :   dwarf_regs[4] = user_regs.rsi;
      59                 :           8 :   dwarf_regs[5] = user_regs.rdi;
      60                 :           8 :   dwarf_regs[6] = user_regs.rbp;
      61                 :           8 :   dwarf_regs[7] = user_regs.rsp;
      62                 :           8 :   dwarf_regs[8] = user_regs.r8;
      63                 :           8 :   dwarf_regs[9] = user_regs.r9;
      64                 :           8 :   dwarf_regs[10] = user_regs.r10;
      65                 :           8 :   dwarf_regs[11] = user_regs.r11;
      66                 :           8 :   dwarf_regs[12] = user_regs.r12;
      67                 :           8 :   dwarf_regs[13] = user_regs.r13;
      68                 :           8 :   dwarf_regs[14] = user_regs.r14;
      69                 :           8 :   dwarf_regs[15] = user_regs.r15;
      70                 :           8 :   dwarf_regs[16] = user_regs.rip;
      71                 :           8 :   return setfunc (0, 17, dwarf_regs, arg);
      72                 :             : #endif /* __x86_64__ */
      73                 :             : }