sysdeps/ia64/libc-tls.c

   1 /* Thread-local storage handling in the ELF dynamic linker.  IA-64 version.
   2    Copyright (C) 2003-2024 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 <csu/libc-tls.c>
  20
  21 _Static_assert (TLS_PRE_TCB_SIZE % __alignof (struct pthread) == 0,
  22                 "__thread_self and THREAD_SELF have same alignment");
  23
  24 /* On IA-64, as it lacks linker optimizations, __tls_get_addr can be
  25    called even in statically linked binaries.
  26    In this case module must be always 1 and PT_TLS segment
  27    exist in the binary, otherwise it would not link.  */
  28
  29 void *
  30 __tls_get_addr (size_t m, size_t offset)
  31 {
  32   dtv_t *dtv = THREAD_DTV ();
  33   return (char *) dtv[1].pointer.val + offset;
  34 }