sysdeps/nptl/tcb-access.h

   1 /* THREAD_* accessors.  Generic version based on struct pthread pointers.
   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 /* Note: These are for accessing the TCB of the *current* thread.
  20    descr can be disregarded on some targets as an optimization.  See
  21    i386 for an example.  */
  22
  23 #define THREAD_GETMEM(descr, member) \
  24   descr->member
  25 #define THREAD_GETMEM_VOLATILE(descr, member) \
  26   (*(volatile __typeof (descr->member) *)&descr->member)
  27 #define THREAD_GETMEM_NC(descr, member, idx) \
  28   descr->member[idx]
  29 #define THREAD_SETMEM(descr, member, value) \
  30   descr->member = (value)
  31 #define THREAD_SETMEM_NC(descr, member, idx, value) \
  32   descr->member[idx] = (value)