1 /* elision-conf.h: Lock elision tunable parameters. 2 Copyright (C) 2015-2022 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 #ifndef _ELISION_CONF_H 20 #define _ELISION_CONF_H 1 21 22 #include <pthread.h> 23 #include <time.h> 24 25 #define ENABLE_ELISION_SUPPORT 1 26 #define ELISION_UNLOCK_NEEDS_ADAPT_COUNT 1 27 28 /* Should make sure there is no false sharing on this. */ 29 struct elision_config 30 { 31 int skip_lock_busy; 32 int skip_lock_internal_abort; 33 int skip_lock_out_of_tbegin_retries; 34 int try_tbegin; 35 int skip_trylock_internal_abort; 36 } __attribute__ ((__aligned__ (128))); 37 38 extern struct elision_config __elision_aconf attribute_hidden; 39 40 #endif 41