1  /* Get address of thread local variable.
       2     Copyright (C) 2002-2023 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  #include <link.h>
      20  #include "thread_dbP.h"
      21  
      22  td_err_e
      23  td_thr_tls_get_addr (const td_thrhandle_t *th,
      24  		     psaddr_t map_address, size_t offset, psaddr_t *address)
      25  {
      26    td_err_e err;
      27    psaddr_t modid;
      28  
      29    /* Get the TLS module ID from the `struct link_map' in the inferior.  */
      30    err = DB_GET_FIELD (modid, th->th_ta_p, map_address, link_map,
      31  		      l_tls_modid, 0);
      32    if (err == TD_NOCAPAB)
      33      return TD_NOAPLIC;
      34    if (err == TD_OK)
      35      {
      36        err = td_thr_tlsbase (th, (uintptr_t) modid, address);
      37        if (err == TD_OK)
      38  	*address += offset;
      39      }
      40    return err;
      41  }