1 /* Definitions for thread-local data handling. Hurd version. 2 Copyright (C) 2003-2022 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 _TLS_H 20 #define _TLS_H 21 22 #ifndef __ASSEMBLER__ 23 24 # include <stddef.h> 25 # include <stdint.h> 26 # include <stdbool.h> 27 # include <sysdep.h> 28 # include <mach/mig_errors.h> 29 # include <mach.h> 30 # include <atomic.h> 31 32 /* This is the size of the initial TCB. */ 33 # define TLS_INIT_TCB_SIZE sizeof (tcbhead_t) 34 35 /* This is the size of the TCB. */ 36 # define TLS_TCB_SIZE TLS_INIT_TCB_SIZE /* XXX */ 37 38 /* Install the dtv pointer. The pointer passed is to the element with 39 index -1 which contain the length. */ 40 # define INSTALL_DTV(descr, dtvp) \ 41 ((tcbhead_t *) (descr))->dtv = (dtvp) + 1 42 43 /* Return dtv of given thread descriptor. */ 44 # define GET_DTV(descr) \ 45 (((tcbhead_t *) (descr))->dtv) 46 47 #endif /* !ASSEMBLER */ 48 49 50 #endif /* tls.h */ 51