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       1                 :             : /* Fetch live process registers from TID.
       2                 :             :    Copyright (C) 2024 CIP United 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(mips) || defined(__mips) || defined(__mips__) || defined(MIPS) || defined(__MIPS__)) && defined(__linux__)
      35                 :             : # include <sys/user.h>
      36                 :             : # include <sys/ptrace.h>
      37                 :             : #include <asm/ptrace.h>
      38                 :             : #endif
      39                 :             : 
      40                 :             : #define BACKEND mips_
      41                 :             : #include "libebl_CPU.h"
      42                 :             : 
      43                 :             : 
      44                 :             : bool
      45                 :           0 : mips_set_initial_registers_tid (pid_t tid __attribute__ ((unused)),
      46                 :             :                           ebl_tid_registers_t *setfunc __attribute__ ((unused)),
      47                 :             :                                   void *arg __attribute__ ((unused)))
      48                 :             : {
      49                 :             : #if (!defined(mips) && !defined(__mips) && !defined(__mips__) && !defined(MIPS) && !defined(__MIPS__)) || !defined(__linux__)
      50                 :           0 :   return false;
      51                 :             : #else /* __mips__ */
      52                 :             : /* For PTRACE_GETREGS */
      53                 :             : 
      54                 :             :   struct pt_regs gregs;
      55                 :             :   if (ptrace (PTRACE_GETREGS, tid, 0, &gregs) != 0)
      56                 :             :     return false;
      57                 :             :   if (! setfunc (-1, 1, (Dwarf_Word *) &gregs.cp0_epc, arg))
      58                 :             :     return false;
      59                 :             :   return setfunc (0, 32, (Dwarf_Word *) &gregs.regs[0], arg);
      60                 :             : #endif /* __mips__ */
      61                 :             : }