libatomic/config/posix/host-config.h

   1 /* Copyright (C) 2012-2022 Free Software Foundation, Inc.
   2    Contributed by Richard Henderson <rth@redhat.com>.
   3
   4    This file is part of the GNU Atomic Library (libatomic).
   5
   6    Libatomic is free software; you can redistribute it and/or modify it
   7    under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    Libatomic is distributed in the hope that it will be useful, but WITHOUT ANY
  12    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  13    FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14    more details.
  15
  16    Under Section 7 of GPL version 3, you are granted additional
  17    permissions described in the GCC Runtime Library Exception, version
  18    3.1, as published by the Free Software Foundation.
  19
  20    You should have received a copy of the GNU General Public License and
  21    a copy of the GCC Runtime Library Exception along with this program;
  22    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23    <http://www.gnu.org/licenses/>.  */
  24
  25 /* Included after all more target-specific host-config.h.  */
  26
  27
  28 #ifndef protect_start_end
  29 # ifdef HAVE_ATTRIBUTE_VISIBILITY
  30 #  pragma GCC visibility push(hidden)
  31 # endif
  32
  33 void libat_lock_1 (void *ptr);
  34 void libat_unlock_1 (void *ptr);
  35
  36 static inline UWORD
  37 protect_start (void *ptr)
  38 {
  39   libat_lock_1 (ptr);
  40   return 0;
  41 }
  42
  43 static inline void
  44 protect_end (void *ptr, UWORD dummy UNUSED)
  45 {
  46   libat_unlock_1 (ptr);
  47 }
  48
  49 # define protect_start_end 1
  50 # ifdef HAVE_ATTRIBUTE_VISIBILITY
  51 #  pragma GCC visibility pop
  52 # endif
  53 #endif /* protect_start_end */
  54
  55 #include_next <host-config.h>