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[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / powerpc / elision-conf.h

/* elision-conf.h: Lock elision tunable parameters.
   Copyright (C) 2015-2019 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#ifndef _ELISION_CONF_H
#define _ELISION_CONF_H 1

#include <pthread.h>
#include <time.h>

/* Should make sure there is no false sharing on this.  */
struct elision_config
{
  int skip_lock_busy;
  int skip_lock_internal_abort;
  int skip_lock_out_of_tbegin_retries;
  int try_tbegin;
  int skip_trylock_internal_abort;
} __attribute__ ((__aligned__ (128)));

extern struct elision_config __elision_aconf attribute_hidden;

extern int __pthread_force_elision attribute_hidden;

/* Tell the test suite to test elision for this architecture.  */
#define HAVE_ELISION 1

#endif