1  /* Debugging support.  MIPS version.
       2     Copyright (C) 2022-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #ifndef _DL_DEBUG_H
      20  #define _DL_DEBUG_H
      21  
      22  /* If there is a DT_MIPS_RLD_MAP_REL or DT_MIPS_RLD_MAP entry in the
      23     dynamic section, fill in the debug map pointer with the run-time
      24     address of the r_debug structure.  */
      25  
      26  static inline void
      27  __attribute ((always_inline))
      28  elf_setup_debug_entry (struct link_map *l, struct r_debug *r)
      29  {
      30    if (l->l_info[DT_MIPS (RLD_MAP_REL)] != NULL)
      31      {
      32        char *ptr = (char *) l->l_info[DT_MIPS (RLD_MAP_REL)];
      33        ptr += l->l_info[DT_MIPS (RLD_MAP_REL)]->d_un.d_val;
      34        *(ElfW(Addr) *) ptr = (ElfW(Addr)) r;
      35      }
      36    else if (l->l_info[DT_MIPS (RLD_MAP)] != NULL)
      37      *(ElfW(Addr) *) (l->l_info[DT_MIPS (RLD_MAP)]->d_un.d_ptr)
      38        = (ElfW(Addr)) r;
      39  }
      40  
      41  #endif /* _DL_DEBUG_H */